diff --git a/.github/workflows/samples-dotnet.yaml b/.github/workflows/samples-dotnet.yaml
index ac957abd355..57d153fbcb6 100644
--- a/.github/workflows/samples-dotnet.yaml
+++ b/.github/workflows/samples-dotnet.yaml
@@ -1,4 +1,4 @@
-name: Samples C# .Net 7
+name: Samples C# .Net 8
 
 on:
   push:
diff --git a/.github/workflows/samples-dotnet6-client.yaml b/.github/workflows/samples-dotnet6-client.yaml
index fdfbdab7db5..fa11a85fb77 100644
--- a/.github/workflows/samples-dotnet6-client.yaml
+++ b/.github/workflows/samples-dotnet6-client.yaml
@@ -16,9 +16,9 @@ on:
       - samples/client/petstore/csharp/OpenAPIClient-net47/**
       # build C# API client (.net framework 4.8)
       - samples/client/petstore/csharp/OpenAPIClient-net48/**
-      # build C# API client (.net 5.0)
-      - samples/client/petstore/csharp/OpenAPIClient-net5.0/**
-      # build C# API client (.net 5.0 with ConditionalSerialization)
+      # build C# API client (.net 7.0)
+      - samples/client/petstore/csharp/OpenAPIClient-net7.0/**
+      # build C# API client (.net 7.0 with ConditionalSerialization)
       - samples/client/petstore/csharp/OpenAPIClient-ConditionalSerialization/**
       # build C# API client (property, parameter name mappings)
       - samples/client/petstore/csharp-restsharp-name-parameter-mappings/**
@@ -37,9 +37,9 @@ on:
       - samples/client/petstore/csharp/OpenAPIClient-net47/**
       # build C# API client (.net framework 4.8)
       - samples/client/petstore/csharp/OpenAPIClient-net48/**
-      # build C# API client (.net 5.0)
-      - samples/client/petstore/csharp/OpenAPIClient-net5.0/**
-      # build C# API client (.net 5.0 with ConditionalSerialization)
+      # build C# API client (.net 7.0)
+      - samples/client/petstore/csharp/OpenAPIClient-net7.0/**
+      # build C# API client (.net 7.0 with ConditionalSerialization)
       - samples/client/petstore/csharp/OpenAPIClient-ConditionalSerialization/**
       # build C# API client (property, parameter name mappings)
       - samples/client/petstore/csharp-restsharp-name-parameter-mappings/**
@@ -65,9 +65,9 @@ jobs:
           - samples/client/petstore/csharp/OpenAPIClient-net47/
           # build C# API client (.net framework 4.8)
           - samples/client/petstore/csharp/OpenAPIClient-net48/
-          # build C# API client (.net 5.0)
-          - samples/client/petstore/csharp/OpenAPIClient-net5.0/
-          # build C# API client (.net 5.0 with ConditionalSerialization)
+          # build C# API client (.net 7.0)
+          - samples/client/petstore/csharp/OpenAPIClient-net7.0/
+          # build C# API client (.net 7.0 with ConditionalSerialization)
           - samples/client/petstore/csharp/OpenAPIClient-ConditionalSerialization/
           # build C# API client (property, parameter name mappings)
           - samples/client/petstore/csharp-restsharp-name-parameter-mappings
diff --git a/.github/workflows/samples-dotnet7-client.yaml b/.github/workflows/samples-dotnet7-client.yaml
new file mode 100644
index 00000000000..c27a524bd98
--- /dev/null
+++ b/.github/workflows/samples-dotnet7-client.yaml
@@ -0,0 +1,81 @@
+name: Samples C# .Net 7
+
+on:
+  push:
+    paths:
+      # build C# API client (multiple frameworks)
+      - samples/client/petstore/csharp/OpenAPIClientCoreAndNet47/**
+      # build C# API client (httpclient)
+      - samples/client/petstore/csharp/OpenAPIClient-httpclient/**
+      # build C# API client (generichost)
+      - samples/client/petstore/csharp/OpenAPIClient-generichost-netstandard2.0/**
+      # build C# API client (netcore)
+      - samples/client/petstore/csharp/OpenAPIClient/**
+      - samples/client/petstore/csharp/OpenAPIClientCore/**
+      # build C# API client (.net framework 4.7)
+      - samples/client/petstore/csharp/OpenAPIClient-net47/**
+      # build C# API client (.net framework 4.8)
+      - samples/client/petstore/csharp/OpenAPIClient-net48/**
+      # build C# API client (.net 7.0)
+      - samples/client/petstore/csharp/OpenAPIClient-net7.0/**
+      # build C# API client (.net 7.0 with ConditionalSerialization)
+      - samples/client/petstore/csharp/OpenAPIClient-ConditionalSerialization/**
+      # build C# API client (property, parameter name mappings)
+      - samples/client/petstore/csharp-restsharp-name-parameter-mappings/**
+  pull_request:
+    paths:
+      # build C# API client (multiple frameworks)
+      - samples/client/petstore/csharp/OpenAPIClientCoreAndNet47/**
+      # build C# API client (httpclient)
+      - samples/client/petstore/csharp/OpenAPIClient-httpclient/**
+      # build C# API client (generichost)
+      - samples/client/petstore/csharp/OpenAPIClient-generichost-netstandard2.0/**
+      # build C# API client (netcore)
+      - samples/client/petstore/csharp/OpenAPIClient/**
+      - samples/client/petstore/csharp/OpenAPIClientCore/**
+      # build C# API client (.net framework 4.7)
+      - samples/client/petstore/csharp/OpenAPIClient-net47/**
+      # build C# API client (.net framework 4.8)
+      - samples/client/petstore/csharp/OpenAPIClient-net48/**
+      # build C# API client (.net 7.0)
+      - samples/client/petstore/csharp/OpenAPIClient-net7.0/**
+      # build C# API client (.net 7.0 with ConditionalSerialization)
+      - samples/client/petstore/csharp/OpenAPIClient-ConditionalSerialization/**
+      # build C# API client (property, parameter name mappings)
+      - samples/client/petstore/csharp-restsharp-name-parameter-mappings/**
+jobs:
+  build:
+    name: Build .Net clients
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          # clients
+          # build C# API client (multiple frameworks)
+          - samples/client/petstore/csharp/OpenAPIClientCoreAndNet47/
+          # build C# API client (httpclient)
+          - samples/client/petstore/csharp/OpenAPIClient-httpclient/
+          # build C# API client (generichost)
+          - samples/client/petstore/csharp/OpenAPIClient-generichost-netstandard2.0/
+          # build C# API client (netcore)
+          - samples/client/petstore/csharp/OpenAPIClient/
+          - samples/client/petstore/csharp/OpenAPIClientCore/
+          # build C# API client (.net framework 4.7)
+          - samples/client/petstore/csharp/OpenAPIClient-net47/
+          # build C# API client (.net framework 4.8)
+          - samples/client/petstore/csharp/OpenAPIClient-net48/
+          # build C# API client (.net 7.0)
+          - samples/client/petstore/csharp/OpenAPIClient-net7.0/
+          # build C# API client (.net 7.0 with ConditionalSerialization)
+          - samples/client/petstore/csharp/OpenAPIClient-ConditionalSerialization/
+          # build C# API client (property, parameter name mappings)
+          - samples/client/petstore/csharp-restsharp-name-parameter-mappings
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-dotnet@v3.2.0
+        with:
+          dotnet-version: '7.0.x'
+      - name: Build
+        working-directory: ${{ matrix.sample }}
+        run: dotnet build Org.OpenAPITools.sln
diff --git a/bin/configs/csharp-restsharp-net7.0.yaml b/bin/configs/csharp-restsharp-net7.0.yaml
index 402113ed6e2..e0fb959a3e5 100644
--- a/bin/configs/csharp-restsharp-net7.0.yaml
+++ b/bin/configs/csharp-restsharp-net7.0.yaml
@@ -1,6 +1,6 @@
 # for .net standard
 generatorName: csharp
-outputDir: samples/client/petstore/csharp/OpenAPIClient-net5.0
+outputDir: samples/client/petstore/csharp/OpenAPIClient-net7.0
 inputSpec: modules/openapi-generator/src/test/resources/3_0/csharp/petstore-with-fake-endpoints-models-for-testing-with-http-signature.yaml
 templateDir: modules/openapi-generator/src/main/resources/csharp
 additionalProperties:
diff --git a/bin/configs/csharp-restsharp-net8.0.yaml b/bin/configs/csharp-restsharp-net8.0.yaml
new file mode 100644
index 00000000000..4620b815955
--- /dev/null
+++ b/bin/configs/csharp-restsharp-net8.0.yaml
@@ -0,0 +1,11 @@
+generatorName: csharp
+outputDir: samples/client/petstore/csharp/OpenAPIClient-net8.0
+inputSpec: modules/openapi-generator/src/test/resources/3_0/csharp/petstore-with-fake-endpoints-models-for-testing-with-http-signature.yaml
+templateDir: modules/openapi-generator/src/main/resources/csharp
+additionalProperties:
+  packageGuid: '{321C8C3F-0156-40C1-AE42-D59761FB9B6C}'
+  useCompareNetObjects: true 
+  disallowAdditionalPropertiesIfNotPresent: false
+  useOneOfDiscriminatorLookup: true
+  targetFramework: net8.0
+  equatable: true
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/.gitignore b/samples/client/petstore/csharp/OpenAPIClient-net7.0/.gitignore
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/.gitignore
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/.gitignore
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/.openapi-generator-ignore b/samples/client/petstore/csharp/OpenAPIClient-net7.0/.openapi-generator-ignore
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/.openapi-generator-ignore
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/.openapi-generator-ignore
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/.openapi-generator/FILES b/samples/client/petstore/csharp/OpenAPIClient-net7.0/.openapi-generator/FILES
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/.openapi-generator/FILES
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/.openapi-generator/FILES
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/.openapi-generator/VERSION b/samples/client/petstore/csharp/OpenAPIClient-net7.0/.openapi-generator/VERSION
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/.openapi-generator/VERSION
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/.openapi-generator/VERSION
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/Org.OpenAPITools.sln b/samples/client/petstore/csharp/OpenAPIClient-net7.0/Org.OpenAPITools.sln
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/Org.OpenAPITools.sln
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/Org.OpenAPITools.sln
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/README.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/README.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/README.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/README.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/api/openapi.yaml b/samples/client/petstore/csharp/OpenAPIClient-net7.0/api/openapi.yaml
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/api/openapi.yaml
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/api/openapi.yaml
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/appveyor.yml b/samples/client/petstore/csharp/OpenAPIClient-net7.0/appveyor.yml
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/appveyor.yml
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/appveyor.yml
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Activity.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Activity.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Activity.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Activity.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ActivityOutputElementRepresentation.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ActivityOutputElementRepresentation.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ActivityOutputElementRepresentation.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ActivityOutputElementRepresentation.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/AdditionalPropertiesClass.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/AdditionalPropertiesClass.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/AdditionalPropertiesClass.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/AdditionalPropertiesClass.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Animal.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Animal.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Animal.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Animal.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/AnotherFakeApi.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/AnotherFakeApi.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/AnotherFakeApi.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/AnotherFakeApi.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ApiResponse.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ApiResponse.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ApiResponse.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ApiResponse.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Apple.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Apple.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Apple.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Apple.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/AppleReq.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/AppleReq.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/AppleReq.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/AppleReq.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ArrayOfArrayOfNumberOnly.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ArrayOfArrayOfNumberOnly.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ArrayOfArrayOfNumberOnly.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ArrayOfArrayOfNumberOnly.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ArrayOfNumberOnly.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ArrayOfNumberOnly.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ArrayOfNumberOnly.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ArrayOfNumberOnly.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ArrayTest.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ArrayTest.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ArrayTest.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ArrayTest.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Banana.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Banana.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Banana.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Banana.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/BananaReq.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/BananaReq.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/BananaReq.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/BananaReq.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/BasquePig.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/BasquePig.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/BasquePig.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Capitalization.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Capitalization.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Capitalization.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Cat.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Cat.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Cat.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Cat.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/CatAllOf.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/CatAllOf.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/CatAllOf.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Category.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Category.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Category.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ChildCat.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ChildCat.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ChildCat.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ChildCatAllOf.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ChildCatAllOf.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ChildCatAllOf.md
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ChildCatAllOf.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ClassModel.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ClassModel.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ClassModel.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ComplexQuadrilateral.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/ComplexQuadrilateral.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/ComplexQuadrilateral.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DanishPig.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/DanishPig.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DanishPig.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DateOnlyClass.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/DateOnlyClass.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DateOnlyClass.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DefaultApi.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/DefaultApi.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DefaultApi.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DeprecatedObject.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/DeprecatedObject.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DeprecatedObject.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Dog.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Dog.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Dog.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DogAllOf.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/DogAllOf.md
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rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/DogAllOf.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Drawing.md b/samples/client/petstore/csharp/OpenAPIClient-net7.0/docs/Drawing.md
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/docs/Drawing.md
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Api/FakeClassnameTags123ApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Api/FakeClassnameTags123ApiTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ActivityOutputElementRepresentationTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ActivityOutputElementRepresentationTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ApiResponseTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ApiResponseTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/AppleReqTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/AppleReqTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ArrayOfArrayOfNumberOnlyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ArrayOfArrayOfNumberOnlyTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ArrayTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ArrayTestTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/BananaReqTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/BananaReqTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/BasquePigTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/BasquePigTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/CapitalizationTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/CapitalizationTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/CatAllOfTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/CatAllOfTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ChildCatAllOfTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ChildCatAllOfTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ChildCatTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ChildCatTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ClassModelTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ClassModelTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ComplexQuadrilateralTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ComplexQuadrilateralTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DanishPigTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DanishPigTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DateOnlyClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DateOnlyClassTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DeprecatedObjectTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DeprecatedObjectTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DogAllOfTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DogAllOfTests.cs
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diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DogTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DogTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DogTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DogTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DrawingTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DrawingTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/DrawingTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/DrawingTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EnumArraysTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EnumArraysTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EnumArraysTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EnumArraysTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EnumClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EnumClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EnumClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EnumClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EnumTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EnumTestTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EnumTestTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EnumTestTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EquilateralTriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EquilateralTriangleTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/EquilateralTriangleTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/EquilateralTriangleTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FileSchemaTestClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FileSchemaTestClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FileSchemaTestClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FileSchemaTestClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FileTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FileTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FileTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FileTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FooGetDefaultResponseTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FooGetDefaultResponseTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FooGetDefaultResponseTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FooGetDefaultResponseTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FooTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FooTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FooTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FooTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FormatTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FormatTestTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FormatTestTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FormatTestTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FruitReqTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FruitReqTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FruitReqTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FruitReqTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FruitTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FruitTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/FruitTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/FruitTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/GmFruitTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/GmFruitTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/GmFruitTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/GmFruitTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/GrandparentAnimalTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/GrandparentAnimalTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/GrandparentAnimalTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/GrandparentAnimalTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/HasOnlyReadOnlyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/HasOnlyReadOnlyTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/HasOnlyReadOnlyTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/HasOnlyReadOnlyTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/HealthCheckResultTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/HealthCheckResultTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/HealthCheckResultTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/HealthCheckResultTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/IsoscelesTriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/IsoscelesTriangleTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/IsoscelesTriangleTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/IsoscelesTriangleTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ListTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ListTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ListTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ListTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/MammalTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/MammalTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/MammalTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/MammalTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/MapTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/MapTestTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/MapTestTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/MapTestTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/MixedPropertiesAndAdditionalPropertiesClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/MixedPropertiesAndAdditionalPropertiesClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/MixedPropertiesAndAdditionalPropertiesClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/MixedPropertiesAndAdditionalPropertiesClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/Model200ResponseTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/Model200ResponseTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/Model200ResponseTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/Model200ResponseTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ModelClientTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ModelClientTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ModelClientTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ModelClientTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NameTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NameTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NameTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NameTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NotificationtestGetElementsV1ResponseMPayloadTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NotificationtestGetElementsV1ResponseMPayloadTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NotificationtestGetElementsV1ResponseMPayloadTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NotificationtestGetElementsV1ResponseMPayloadTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NullableClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NullableClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NullableClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NullableClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NullableGuidClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NullableGuidClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NullableGuidClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NullableGuidClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NullableShapeTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NullableShapeTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NullableShapeTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NullableShapeTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NumberOnlyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NumberOnlyTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/NumberOnlyTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/NumberOnlyTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ObjectWithDeprecatedFieldsTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ObjectWithDeprecatedFieldsTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ObjectWithDeprecatedFieldsTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ObjectWithDeprecatedFieldsTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OneOfStringTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OneOfStringTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OneOfStringTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OneOfStringTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OrderTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OrderTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OrderTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OrderTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterCompositeTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterCompositeTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterCompositeTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterCompositeTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumDefaultValueTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumDefaultValueTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumDefaultValueTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumDefaultValueTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerDefaultValueTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerDefaultValueTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerDefaultValueTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerDefaultValueTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumTestTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumTestTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumTestTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/OuterEnumTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/OuterEnumTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ParentPetTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ParentPetTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ParentPetTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ParentPetTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PetStatusFilterTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PetStatusFilterTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PetStatusFilterTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PetStatusFilterTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PetTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PetTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PetTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PetTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PigTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PigTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PigTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PigTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PolymorphicPropertyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PolymorphicPropertyTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/PolymorphicPropertyTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/PolymorphicPropertyTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/QuadrilateralInterfaceTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/QuadrilateralInterfaceTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/QuadrilateralInterfaceTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/QuadrilateralInterfaceTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/QuadrilateralTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/QuadrilateralTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/QuadrilateralTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/QuadrilateralTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ReadOnlyFirstTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ReadOnlyFirstTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ReadOnlyFirstTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ReadOnlyFirstTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/RequiredClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/RequiredClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/RequiredClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/RequiredClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ReturnTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ReturnTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ReturnTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ReturnTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashRoleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashRoleTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashRoleTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashRoleTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ScaleneTriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ScaleneTriangleTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ScaleneTriangleTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ScaleneTriangleTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ShapeInterfaceTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ShapeInterfaceTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ShapeInterfaceTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ShapeInterfaceTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ShapeOrNullTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ShapeOrNullTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ShapeOrNullTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ShapeOrNullTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ShapeTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ShapeTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ShapeTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ShapeTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/SimpleQuadrilateralTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/SimpleQuadrilateralTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/SimpleQuadrilateralTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/SimpleQuadrilateralTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/SpecialModelNameTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/SpecialModelNameTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/SpecialModelNameTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/SpecialModelNameTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TagTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TagTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TagTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TagTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListObjectTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListObjectTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListObjectTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListObjectTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TestInlineFreeformAdditionalPropertiesRequestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TestInlineFreeformAdditionalPropertiesRequestTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TestInlineFreeformAdditionalPropertiesRequestTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TestInlineFreeformAdditionalPropertiesRequestTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TriangleInterfaceTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TriangleInterfaceTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TriangleInterfaceTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TriangleInterfaceTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TriangleTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/TriangleTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/TriangleTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/UpdatePet200ResponseTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/UpdatePet200ResponseTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/UpdatePet200ResponseTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/UpdatePet200ResponseTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/UserTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/UserTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/UserTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/UserTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/WhaleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/WhaleTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/WhaleTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/WhaleTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ZebraTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ZebraTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ZebraTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ZebraTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumClassTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumClassTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumClassTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumTests.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumTests.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumTests.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/AnotherFakeApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/AnotherFakeApi.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/AnotherFakeApi.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/AnotherFakeApi.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/DefaultApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/DefaultApi.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/DefaultApi.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/DefaultApi.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/FakeApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/FakeApi.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/FakeApi.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/FakeApi.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/PetApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/PetApi.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/PetApi.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/PetApi.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/StoreApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/StoreApi.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/StoreApi.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/StoreApi.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/UserApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/UserApi.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Api/UserApi.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Api/UserApi.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ApiClient.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiClient.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ApiClient.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiException.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ApiException.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiException.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ApiException.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ApiResponse.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiResponse.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ApiResponse.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Auth/TokenResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Auth/TokenResponse.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Auth/TokenResponse.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Auth/TokenResponse.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ClientUtils.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ClientUtils.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ClientUtils.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ClientUtils.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Configuration.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Configuration.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Configuration.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Configuration.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ExceptionFactory.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ExceptionFactory.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ExceptionFactory.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ExceptionFactory.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/GlobalConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/GlobalConfiguration.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/GlobalConfiguration.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/GlobalConfiguration.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/HttpMethod.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/HttpMethod.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/HttpMethod.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/HttpMethod.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/IApiAccessor.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/IApiAccessor.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/IApiAccessor.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/IApiAccessor.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/IAsynchronousClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/IAsynchronousClient.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/IAsynchronousClient.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/IAsynchronousClient.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/IReadableConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/IReadableConfiguration.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/IReadableConfiguration.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/IReadableConfiguration.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ISynchronousClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ISynchronousClient.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ISynchronousClient.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/ISynchronousClient.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Multimap.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Multimap.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/Multimap.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/Multimap.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/RequestOptions.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/RequestOptions.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/RequestOptions.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/RequestOptions.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/RetryConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/RetryConfiguration.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/RetryConfiguration.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Client/RetryConfiguration.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Activity.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Activity.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Activity.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Activity.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Animal.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Animal.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Animal.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Animal.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ApiResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ApiResponse.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ApiResponse.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ApiResponse.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Apple.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Apple.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Apple.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Apple.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/AppleReq.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/AppleReq.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/AppleReq.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/AppleReq.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ArrayTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ArrayTest.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ArrayTest.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ArrayTest.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Banana.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Banana.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Banana.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Banana.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/BananaReq.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/BananaReq.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/BananaReq.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/BananaReq.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/BasquePig.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/BasquePig.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/BasquePig.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/BasquePig.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Capitalization.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Capitalization.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Capitalization.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Capitalization.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Cat.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Cat.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Cat.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Cat.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/CatAllOf.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/CatAllOf.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/CatAllOf.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/CatAllOf.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Category.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Category.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Category.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Category.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ChildCat.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ChildCat.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ChildCat.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ChildCat.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ChildCatAllOf.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ClassModel.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ClassModel.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ClassModel.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ClassModel.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DanishPig.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DanishPig.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DanishPig.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DanishPig.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DateOnlyClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DateOnlyClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DateOnlyClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DateOnlyClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DeprecatedObject.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DeprecatedObject.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DeprecatedObject.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DeprecatedObject.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Dog.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Dog.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Dog.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Dog.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DogAllOf.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DogAllOf.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/DogAllOf.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/DogAllOf.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Drawing.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Drawing.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Drawing.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Drawing.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EnumArrays.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EnumArrays.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EnumArrays.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EnumArrays.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EnumClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EnumClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EnumClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EnumClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EnumTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EnumTest.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EnumTest.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EnumTest.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EquilateralTriangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/File.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/File.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/File.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/File.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Foo.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Foo.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Foo.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Foo.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FormatTest.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FormatTest.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FormatTest.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Fruit.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Fruit.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Fruit.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Fruit.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FruitReq.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FruitReq.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/FruitReq.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/FruitReq.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/GmFruit.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/GmFruit.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/GmFruit.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/GmFruit.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/GrandparentAnimal.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/HealthCheckResult.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/HealthCheckResult.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/HealthCheckResult.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/HealthCheckResult.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/List.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/List.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/List.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/List.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/LiteralStringClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/LiteralStringClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/LiteralStringClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/LiteralStringClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Mammal.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Mammal.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Mammal.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Mammal.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/MapTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/MapTest.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/MapTest.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/MapTest.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Model200Response.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Model200Response.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Model200Response.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Model200Response.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ModelClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ModelClient.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ModelClient.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ModelClient.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Name.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Name.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Name.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Name.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NullableClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NullableClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NullableClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NullableGuidClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NullableGuidClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NullableGuidClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NullableGuidClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NullableShape.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NullableShape.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NullableShape.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NullableShape.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NumberOnly.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/NumberOnly.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/NumberOnly.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OneOfString.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OneOfString.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OneOfString.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OneOfString.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Order.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Order.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Order.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Order.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterComposite.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterComposite.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterComposite.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterComposite.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnum.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnum.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnum.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnum.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumInteger.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumInteger.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumInteger.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumInteger.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumTest.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/OuterEnumTest.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/OuterEnumTest.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ParentPet.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ParentPet.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ParentPet.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ParentPet.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Pet.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Pet.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Pet.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Pet.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/PetStatusFilter.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/PetStatusFilter.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/PetStatusFilter.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/PetStatusFilter.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Pig.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Pig.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Pig.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Pig.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/PolymorphicProperty.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/PolymorphicProperty.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/PolymorphicProperty.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/PolymorphicProperty.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Quadrilateral.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Quadrilateral.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Quadrilateral.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Quadrilateral.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/RequiredClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/RequiredClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/RequiredClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/RequiredClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Return.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Return.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Return.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Return.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/RolesReportsHash.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/RolesReportsHash.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/RolesReportsHash.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/RolesReportsHash.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/RolesReportsHashRole.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/RolesReportsHashRole.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/RolesReportsHashRole.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/RolesReportsHashRole.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ScaleneTriangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Shape.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Shape.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Shape.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Shape.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ShapeInterface.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ShapeInterface.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ShapeInterface.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ShapeInterface.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ShapeOrNull.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ShapeOrNull.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ShapeOrNull.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ShapeOrNull.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/SpecialModelName.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/SpecialModelName.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/SpecialModelName.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/SpecialModelName.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Tag.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Tag.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Tag.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Tag.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Triangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Triangle.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Triangle.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Triangle.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TriangleInterface.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TriangleInterface.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/TriangleInterface.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/TriangleInterface.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/UpdatePet200Response.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/UpdatePet200Response.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/UpdatePet200Response.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/UpdatePet200Response.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/User.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/User.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/User.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/User.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Whale.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Whale.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Whale.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Whale.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Zebra.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Zebra.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/Zebra.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/Zebra.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ZeroBasedEnum.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ZeroBasedEnum.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ZeroBasedEnum.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ZeroBasedEnum.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Org.OpenAPITools.csproj b/samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Org.OpenAPITools.csproj
similarity index 100%
rename from samples/client/petstore/csharp/OpenAPIClient-net5.0/src/Org.OpenAPITools/Org.OpenAPITools.csproj
rename to samples/client/petstore/csharp/OpenAPIClient-net7.0/src/Org.OpenAPITools/Org.OpenAPITools.csproj
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/.gitignore b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.gitignore
new file mode 100644
index 00000000000..1ee53850b84
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.gitignore
@@ -0,0 +1,362 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator-ignore b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator-ignore
new file mode 100644
index 00000000000..7484ee590a3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator-ignore
@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator/FILES b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator/FILES
new file mode 100644
index 00000000000..1e54de3472d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator/FILES
@@ -0,0 +1,223 @@
+.gitignore
+Org.OpenAPITools.sln
+README.md
+api/openapi.yaml
+appveyor.yml
+docs/Activity.md
+docs/ActivityOutputElementRepresentation.md
+docs/AdditionalPropertiesClass.md
+docs/Animal.md
+docs/AnotherFakeApi.md
+docs/ApiResponse.md
+docs/Apple.md
+docs/AppleReq.md
+docs/ArrayOfArrayOfNumberOnly.md
+docs/ArrayOfNumberOnly.md
+docs/ArrayTest.md
+docs/Banana.md
+docs/BananaReq.md
+docs/BasquePig.md
+docs/Capitalization.md
+docs/Cat.md
+docs/Category.md
+docs/ChildCat.md
+docs/ClassModel.md
+docs/ComplexQuadrilateral.md
+docs/DanishPig.md
+docs/DateOnlyClass.md
+docs/DefaultApi.md
+docs/DeprecatedObject.md
+docs/Dog.md
+docs/Drawing.md
+docs/EnumArrays.md
+docs/EnumClass.md
+docs/EnumTest.md
+docs/EquilateralTriangle.md
+docs/FakeApi.md
+docs/FakeClassnameTags123Api.md
+docs/File.md
+docs/FileSchemaTestClass.md
+docs/Foo.md
+docs/FooGetDefaultResponse.md
+docs/FormatTest.md
+docs/Fruit.md
+docs/FruitReq.md
+docs/GmFruit.md
+docs/GrandparentAnimal.md
+docs/HasOnlyReadOnly.md
+docs/HealthCheckResult.md
+docs/IsoscelesTriangle.md
+docs/List.md
+docs/LiteralStringClass.md
+docs/Mammal.md
+docs/MapTest.md
+docs/MixedPropertiesAndAdditionalPropertiesClass.md
+docs/Model200Response.md
+docs/ModelClient.md
+docs/Name.md
+docs/NotificationtestGetElementsV1ResponseMPayload.md
+docs/NullableClass.md
+docs/NullableGuidClass.md
+docs/NullableShape.md
+docs/NumberOnly.md
+docs/ObjectWithDeprecatedFields.md
+docs/OneOfString.md
+docs/Order.md
+docs/OuterComposite.md
+docs/OuterEnum.md
+docs/OuterEnumDefaultValue.md
+docs/OuterEnumInteger.md
+docs/OuterEnumIntegerDefaultValue.md
+docs/OuterEnumTest.md
+docs/ParentPet.md
+docs/Pet.md
+docs/PetApi.md
+docs/Pig.md
+docs/PolymorphicProperty.md
+docs/Quadrilateral.md
+docs/QuadrilateralInterface.md
+docs/ReadOnlyFirst.md
+docs/RequiredClass.md
+docs/Return.md
+docs/RolesReportsHash.md
+docs/RolesReportsHashRole.md
+docs/ScaleneTriangle.md
+docs/Shape.md
+docs/ShapeInterface.md
+docs/ShapeOrNull.md
+docs/SimpleQuadrilateral.md
+docs/SpecialModelName.md
+docs/StoreApi.md
+docs/Tag.md
+docs/TestCollectionEndingWithWordList.md
+docs/TestCollectionEndingWithWordListObject.md
+docs/TestInlineFreeformAdditionalPropertiesRequest.md
+docs/Triangle.md
+docs/TriangleInterface.md
+docs/User.md
+docs/UserApi.md
+docs/Whale.md
+docs/Zebra.md
+docs/ZeroBasedEnum.md
+docs/ZeroBasedEnumClass.md
+git_push.sh
+src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
+src/Org.OpenAPITools/Api/AnotherFakeApi.cs
+src/Org.OpenAPITools/Api/DefaultApi.cs
+src/Org.OpenAPITools/Api/FakeApi.cs
+src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs
+src/Org.OpenAPITools/Api/PetApi.cs
+src/Org.OpenAPITools/Api/StoreApi.cs
+src/Org.OpenAPITools/Api/UserApi.cs
+src/Org.OpenAPITools/Client/ApiClient.cs
+src/Org.OpenAPITools/Client/ApiException.cs
+src/Org.OpenAPITools/Client/ApiResponse.cs
+src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs
+src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs
+src/Org.OpenAPITools/Client/Auth/TokenResponse.cs
+src/Org.OpenAPITools/Client/ClientUtils.cs
+src/Org.OpenAPITools/Client/Configuration.cs
+src/Org.OpenAPITools/Client/ExceptionFactory.cs
+src/Org.OpenAPITools/Client/GlobalConfiguration.cs
+src/Org.OpenAPITools/Client/HttpMethod.cs
+src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
+src/Org.OpenAPITools/Client/IApiAccessor.cs
+src/Org.OpenAPITools/Client/IAsynchronousClient.cs
+src/Org.OpenAPITools/Client/IReadableConfiguration.cs
+src/Org.OpenAPITools/Client/ISynchronousClient.cs
+src/Org.OpenAPITools/Client/Multimap.cs
+src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs
+src/Org.OpenAPITools/Client/RequestOptions.cs
+src/Org.OpenAPITools/Client/RetryConfiguration.cs
+src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs
+src/Org.OpenAPITools/Model/Activity.cs
+src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs
+src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
+src/Org.OpenAPITools/Model/Animal.cs
+src/Org.OpenAPITools/Model/ApiResponse.cs
+src/Org.OpenAPITools/Model/Apple.cs
+src/Org.OpenAPITools/Model/AppleReq.cs
+src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
+src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
+src/Org.OpenAPITools/Model/ArrayTest.cs
+src/Org.OpenAPITools/Model/Banana.cs
+src/Org.OpenAPITools/Model/BananaReq.cs
+src/Org.OpenAPITools/Model/BasquePig.cs
+src/Org.OpenAPITools/Model/Capitalization.cs
+src/Org.OpenAPITools/Model/Cat.cs
+src/Org.OpenAPITools/Model/Category.cs
+src/Org.OpenAPITools/Model/ChildCat.cs
+src/Org.OpenAPITools/Model/ClassModel.cs
+src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
+src/Org.OpenAPITools/Model/DanishPig.cs
+src/Org.OpenAPITools/Model/DateOnlyClass.cs
+src/Org.OpenAPITools/Model/DeprecatedObject.cs
+src/Org.OpenAPITools/Model/Dog.cs
+src/Org.OpenAPITools/Model/Drawing.cs
+src/Org.OpenAPITools/Model/EnumArrays.cs
+src/Org.OpenAPITools/Model/EnumClass.cs
+src/Org.OpenAPITools/Model/EnumTest.cs
+src/Org.OpenAPITools/Model/EquilateralTriangle.cs
+src/Org.OpenAPITools/Model/File.cs
+src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
+src/Org.OpenAPITools/Model/Foo.cs
+src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs
+src/Org.OpenAPITools/Model/FormatTest.cs
+src/Org.OpenAPITools/Model/Fruit.cs
+src/Org.OpenAPITools/Model/FruitReq.cs
+src/Org.OpenAPITools/Model/GmFruit.cs
+src/Org.OpenAPITools/Model/GrandparentAnimal.cs
+src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
+src/Org.OpenAPITools/Model/HealthCheckResult.cs
+src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
+src/Org.OpenAPITools/Model/List.cs
+src/Org.OpenAPITools/Model/LiteralStringClass.cs
+src/Org.OpenAPITools/Model/Mammal.cs
+src/Org.OpenAPITools/Model/MapTest.cs
+src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
+src/Org.OpenAPITools/Model/Model200Response.cs
+src/Org.OpenAPITools/Model/ModelClient.cs
+src/Org.OpenAPITools/Model/Name.cs
+src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs
+src/Org.OpenAPITools/Model/NullableClass.cs
+src/Org.OpenAPITools/Model/NullableGuidClass.cs
+src/Org.OpenAPITools/Model/NullableShape.cs
+src/Org.OpenAPITools/Model/NumberOnly.cs
+src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs
+src/Org.OpenAPITools/Model/OneOfString.cs
+src/Org.OpenAPITools/Model/Order.cs
+src/Org.OpenAPITools/Model/OuterComposite.cs
+src/Org.OpenAPITools/Model/OuterEnum.cs
+src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs
+src/Org.OpenAPITools/Model/OuterEnumInteger.cs
+src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs
+src/Org.OpenAPITools/Model/OuterEnumTest.cs
+src/Org.OpenAPITools/Model/ParentPet.cs
+src/Org.OpenAPITools/Model/Pet.cs
+src/Org.OpenAPITools/Model/Pig.cs
+src/Org.OpenAPITools/Model/PolymorphicProperty.cs
+src/Org.OpenAPITools/Model/Quadrilateral.cs
+src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
+src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
+src/Org.OpenAPITools/Model/RequiredClass.cs
+src/Org.OpenAPITools/Model/Return.cs
+src/Org.OpenAPITools/Model/RolesReportsHash.cs
+src/Org.OpenAPITools/Model/RolesReportsHashRole.cs
+src/Org.OpenAPITools/Model/ScaleneTriangle.cs
+src/Org.OpenAPITools/Model/Shape.cs
+src/Org.OpenAPITools/Model/ShapeInterface.cs
+src/Org.OpenAPITools/Model/ShapeOrNull.cs
+src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
+src/Org.OpenAPITools/Model/SpecialModelName.cs
+src/Org.OpenAPITools/Model/Tag.cs
+src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs
+src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs
+src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs
+src/Org.OpenAPITools/Model/Triangle.cs
+src/Org.OpenAPITools/Model/TriangleInterface.cs
+src/Org.OpenAPITools/Model/User.cs
+src/Org.OpenAPITools/Model/Whale.cs
+src/Org.OpenAPITools/Model/Zebra.cs
+src/Org.OpenAPITools/Model/ZeroBasedEnum.cs
+src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs
+src/Org.OpenAPITools/Org.OpenAPITools.csproj
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator/VERSION b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator/VERSION
new file mode 100644
index 00000000000..0f78c31cdc7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/.openapi-generator/VERSION
@@ -0,0 +1 @@
+7.2.0-SNAPSHOT
\ No newline at end of file
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/Org.OpenAPITools.sln b/samples/client/petstore/csharp/OpenAPIClient-net8.0/Org.OpenAPITools.sln
new file mode 100644
index 00000000000..5b15451c9dc
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/Org.OpenAPITools.sln
@@ -0,0 +1,27 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+VisualStudioVersion = 12.0.0.0
+MinimumVisualStudioVersion = 10.0.0.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Org.OpenAPITools", "src\Org.OpenAPITools\Org.OpenAPITools.csproj", "{321C8C3F-0156-40C1-AE42-D59761FB9B6C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Org.OpenAPITools.Test", "src\Org.OpenAPITools.Test\Org.OpenAPITools.Test.csproj", "{19F1DEBC-DE5E-4517-8062-F000CD499087}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{321C8C3F-0156-40C1-AE42-D59761FB9B6C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{321C8C3F-0156-40C1-AE42-D59761FB9B6C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{321C8C3F-0156-40C1-AE42-D59761FB9B6C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{321C8C3F-0156-40C1-AE42-D59761FB9B6C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{19F1DEBC-DE5E-4517-8062-F000CD499087}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{19F1DEBC-DE5E-4517-8062-F000CD499087}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{19F1DEBC-DE5E-4517-8062-F000CD499087}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{19F1DEBC-DE5E-4517-8062-F000CD499087}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
\ No newline at end of file
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/README.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/README.md
new file mode 100644
index 00000000000..b344c43c38b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/README.md
@@ -0,0 +1,302 @@
+# Org.OpenAPITools - the C# library for the OpenAPI Petstore
+
+This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+
+This C# SDK is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
+
+- API version: 1.0.0
+- SDK version: 1.0.0
+- Build package: org.openapitools.codegen.languages.CSharpClientCodegen
+
+<a id="frameworks-supported"></a>
+## Frameworks supported
+
+<a id="dependencies"></a>
+## Dependencies
+
+- [RestSharp](https://www.nuget.org/packages/RestSharp) - 106.13.0 or later
+- [Json.NET](https://www.nuget.org/packages/Newtonsoft.Json/) - 13.0.2 or later
+- [JsonSubTypes](https://www.nuget.org/packages/JsonSubTypes/) - 1.8.0 or later
+- [CompareNETObjects](https://www.nuget.org/packages/CompareNETObjects) - 4.61.0 or later
+- [System.ComponentModel.Annotations](https://www.nuget.org/packages/System.ComponentModel.Annotations) - 5.0.0 or later
+
+The DLLs included in the package may not be the latest version. We recommend using [NuGet](https://docs.nuget.org/consume/installing-nuget) to obtain the latest version of the packages:
+```
+Install-Package RestSharp
+Install-Package Newtonsoft.Json
+Install-Package JsonSubTypes
+Install-Package System.ComponentModel.Annotations
+Install-Package CompareNETObjects
+```
+
+NOTE: RestSharp versions greater than 105.1.0 have a bug which causes file uploads to fail. See [RestSharp#742](https://github.com/restsharp/RestSharp/issues/742).
+NOTE: RestSharp for .Net Core creates a new socket for each api call, which can lead to a socket exhaustion problem. See [RestSharp#1406](https://github.com/restsharp/RestSharp/issues/1406).
+
+<a id="installation"></a>
+## Installation
+Run the following command to generate the DLL
+- [Mac/Linux] `/bin/sh build.sh`
+- [Windows] `build.bat`
+
+Then include the DLL (under the `bin` folder) in the C# project, and use the namespaces:
+```csharp
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+```
+<a id="packaging"></a>
+## Packaging
+
+A `.nuspec` is included with the project. You can follow the Nuget quickstart to [create](https://docs.microsoft.com/en-us/nuget/quickstart/create-and-publish-a-package#create-the-package) and [publish](https://docs.microsoft.com/en-us/nuget/quickstart/create-and-publish-a-package#publish-the-package) packages.
+
+This `.nuspec` uses placeholders from the `.csproj`, so build the `.csproj` directly:
+
+```
+nuget pack -Build -OutputDirectory out Org.OpenAPITools.csproj
+```
+
+Then, publish to a [local feed](https://docs.microsoft.com/en-us/nuget/hosting-packages/local-feeds) or [other host](https://docs.microsoft.com/en-us/nuget/hosting-packages/overview) and consume the new package via Nuget as usual.
+
+<a id="usage"></a>
+## Usage
+
+To use the API client with a HTTP proxy, setup a `System.Net.WebProxy`
+```csharp
+Configuration c = new Configuration();
+System.Net.WebProxy webProxy = new System.Net.WebProxy("http://myProxyUrl:80/");
+webProxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
+c.Proxy = webProxy;
+```
+
+<a id="getting-started"></a>
+## Getting Started
+
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class Example
+    {
+        public static void Main()
+        {
+
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new AnotherFakeApi(config);
+            var modelClient = new ModelClient(); // ModelClient | client model
+
+            try
+            {
+                // To test special tags
+                ModelClient result = apiInstance.Call123TestSpecialTags(modelClient);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException e)
+            {
+                Debug.Print("Exception when calling AnotherFakeApi.Call123TestSpecialTags: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+
+        }
+    }
+}
+```
+
+<a id="documentation-for-api-endpoints"></a>
+## Documentation for API Endpoints
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*AnotherFakeApi* | [**Call123TestSpecialTags**](docs/AnotherFakeApi.md#call123testspecialtags) | **PATCH** /another-fake/dummy | To test special tags
+*DefaultApi* | [**FooGet**](docs/DefaultApi.md#fooget) | **GET** /foo | 
+*DefaultApi* | [**GetCountry**](docs/DefaultApi.md#getcountry) | **POST** /country | 
+*DefaultApi* | [**Hello**](docs/DefaultApi.md#hello) | **GET** /hello | Hello
+*DefaultApi* | [**RolesReportGet**](docs/DefaultApi.md#rolesreportget) | **GET** /roles/report | 
+*DefaultApi* | [**Test**](docs/DefaultApi.md#test) | **GET** /test | Retrieve an existing Notificationtest's Elements
+*FakeApi* | [**FakeHealthGet**](docs/FakeApi.md#fakehealthget) | **GET** /fake/health | Health check endpoint
+*FakeApi* | [**FakeOuterBooleanSerialize**](docs/FakeApi.md#fakeouterbooleanserialize) | **POST** /fake/outer/boolean | 
+*FakeApi* | [**FakeOuterCompositeSerialize**](docs/FakeApi.md#fakeoutercompositeserialize) | **POST** /fake/outer/composite | 
+*FakeApi* | [**FakeOuterNumberSerialize**](docs/FakeApi.md#fakeouternumberserialize) | **POST** /fake/outer/number | 
+*FakeApi* | [**FakeOuterStringSerialize**](docs/FakeApi.md#fakeouterstringserialize) | **POST** /fake/outer/string | 
+*FakeApi* | [**GetArrayOfEnums**](docs/FakeApi.md#getarrayofenums) | **GET** /fake/array-of-enums | Array of Enums
+*FakeApi* | [**TestBodyWithFileSchema**](docs/FakeApi.md#testbodywithfileschema) | **PUT** /fake/body-with-file-schema | 
+*FakeApi* | [**TestBodyWithQueryParams**](docs/FakeApi.md#testbodywithqueryparams) | **PUT** /fake/body-with-query-params | 
+*FakeApi* | [**TestClientModel**](docs/FakeApi.md#testclientmodel) | **PATCH** /fake | To test \"client\" model
+*FakeApi* | [**TestEndpointParameters**](docs/FakeApi.md#testendpointparameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+*FakeApi* | [**TestEnumParameters**](docs/FakeApi.md#testenumparameters) | **GET** /fake | To test enum parameters
+*FakeApi* | [**TestGroupParameters**](docs/FakeApi.md#testgroupparameters) | **DELETE** /fake | Fake endpoint to test group parameters (optional)
+*FakeApi* | [**TestInlineAdditionalProperties**](docs/FakeApi.md#testinlineadditionalproperties) | **POST** /fake/inline-additionalProperties | test inline additionalProperties
+*FakeApi* | [**TestInlineFreeformAdditionalProperties**](docs/FakeApi.md#testinlinefreeformadditionalproperties) | **POST** /fake/inline-freeform-additionalProperties | test inline free-form additionalProperties
+*FakeApi* | [**TestJsonFormData**](docs/FakeApi.md#testjsonformdata) | **GET** /fake/jsonFormData | test json serialization of form data
+*FakeApi* | [**TestQueryParameterCollectionFormat**](docs/FakeApi.md#testqueryparametercollectionformat) | **PUT** /fake/test-query-parameters | 
+*FakeClassnameTags123Api* | [**TestClassname**](docs/FakeClassnameTags123Api.md#testclassname) | **PATCH** /fake_classname_test | To test class name in snake case
+*PetApi* | [**AddPet**](docs/PetApi.md#addpet) | **POST** /pet | Add a new pet to the store
+*PetApi* | [**DeletePet**](docs/PetApi.md#deletepet) | **DELETE** /pet/{petId} | Deletes a pet
+*PetApi* | [**FindPetsByStatus**](docs/PetApi.md#findpetsbystatus) | **GET** /pet/findByStatus | Finds Pets by status
+*PetApi* | [**FindPetsByTags**](docs/PetApi.md#findpetsbytags) | **GET** /pet/findByTags | Finds Pets by tags
+*PetApi* | [**GetPetById**](docs/PetApi.md#getpetbyid) | **GET** /pet/{petId} | Find pet by ID
+*PetApi* | [**UpdatePet**](docs/PetApi.md#updatepet) | **PUT** /pet | Update an existing pet
+*PetApi* | [**UpdatePetWithForm**](docs/PetApi.md#updatepetwithform) | **POST** /pet/{petId} | Updates a pet in the store with form data
+*PetApi* | [**UploadFile**](docs/PetApi.md#uploadfile) | **POST** /pet/{petId}/uploadImage | uploads an image
+*PetApi* | [**UploadFileWithRequiredFile**](docs/PetApi.md#uploadfilewithrequiredfile) | **POST** /fake/{petId}/uploadImageWithRequiredFile | uploads an image (required)
+*StoreApi* | [**DeleteOrder**](docs/StoreApi.md#deleteorder) | **DELETE** /store/order/{order_id} | Delete purchase order by ID
+*StoreApi* | [**GetInventory**](docs/StoreApi.md#getinventory) | **GET** /store/inventory | Returns pet inventories by status
+*StoreApi* | [**GetOrderById**](docs/StoreApi.md#getorderbyid) | **GET** /store/order/{order_id} | Find purchase order by ID
+*StoreApi* | [**PlaceOrder**](docs/StoreApi.md#placeorder) | **POST** /store/order | Place an order for a pet
+*UserApi* | [**CreateUser**](docs/UserApi.md#createuser) | **POST** /user | Create user
+*UserApi* | [**CreateUsersWithArrayInput**](docs/UserApi.md#createuserswitharrayinput) | **POST** /user/createWithArray | Creates list of users with given input array
+*UserApi* | [**CreateUsersWithListInput**](docs/UserApi.md#createuserswithlistinput) | **POST** /user/createWithList | Creates list of users with given input array
+*UserApi* | [**DeleteUser**](docs/UserApi.md#deleteuser) | **DELETE** /user/{username} | Delete user
+*UserApi* | [**GetUserByName**](docs/UserApi.md#getuserbyname) | **GET** /user/{username} | Get user by user name
+*UserApi* | [**LoginUser**](docs/UserApi.md#loginuser) | **GET** /user/login | Logs user into the system
+*UserApi* | [**LogoutUser**](docs/UserApi.md#logoutuser) | **GET** /user/logout | Logs out current logged in user session
+*UserApi* | [**UpdateUser**](docs/UserApi.md#updateuser) | **PUT** /user/{username} | Updated user
+
+
+<a id="documentation-for-models"></a>
+## Documentation for Models
+
+ - [Model.Activity](docs/Activity.md)
+ - [Model.ActivityOutputElementRepresentation](docs/ActivityOutputElementRepresentation.md)
+ - [Model.AdditionalPropertiesClass](docs/AdditionalPropertiesClass.md)
+ - [Model.Animal](docs/Animal.md)
+ - [Model.ApiResponse](docs/ApiResponse.md)
+ - [Model.Apple](docs/Apple.md)
+ - [Model.AppleReq](docs/AppleReq.md)
+ - [Model.ArrayOfArrayOfNumberOnly](docs/ArrayOfArrayOfNumberOnly.md)
+ - [Model.ArrayOfNumberOnly](docs/ArrayOfNumberOnly.md)
+ - [Model.ArrayTest](docs/ArrayTest.md)
+ - [Model.Banana](docs/Banana.md)
+ - [Model.BananaReq](docs/BananaReq.md)
+ - [Model.BasquePig](docs/BasquePig.md)
+ - [Model.Capitalization](docs/Capitalization.md)
+ - [Model.Cat](docs/Cat.md)
+ - [Model.Category](docs/Category.md)
+ - [Model.ChildCat](docs/ChildCat.md)
+ - [Model.ClassModel](docs/ClassModel.md)
+ - [Model.ComplexQuadrilateral](docs/ComplexQuadrilateral.md)
+ - [Model.DanishPig](docs/DanishPig.md)
+ - [Model.DateOnlyClass](docs/DateOnlyClass.md)
+ - [Model.DeprecatedObject](docs/DeprecatedObject.md)
+ - [Model.Dog](docs/Dog.md)
+ - [Model.Drawing](docs/Drawing.md)
+ - [Model.EnumArrays](docs/EnumArrays.md)
+ - [Model.EnumClass](docs/EnumClass.md)
+ - [Model.EnumTest](docs/EnumTest.md)
+ - [Model.EquilateralTriangle](docs/EquilateralTriangle.md)
+ - [Model.File](docs/File.md)
+ - [Model.FileSchemaTestClass](docs/FileSchemaTestClass.md)
+ - [Model.Foo](docs/Foo.md)
+ - [Model.FooGetDefaultResponse](docs/FooGetDefaultResponse.md)
+ - [Model.FormatTest](docs/FormatTest.md)
+ - [Model.Fruit](docs/Fruit.md)
+ - [Model.FruitReq](docs/FruitReq.md)
+ - [Model.GmFruit](docs/GmFruit.md)
+ - [Model.GrandparentAnimal](docs/GrandparentAnimal.md)
+ - [Model.HasOnlyReadOnly](docs/HasOnlyReadOnly.md)
+ - [Model.HealthCheckResult](docs/HealthCheckResult.md)
+ - [Model.IsoscelesTriangle](docs/IsoscelesTriangle.md)
+ - [Model.List](docs/List.md)
+ - [Model.LiteralStringClass](docs/LiteralStringClass.md)
+ - [Model.Mammal](docs/Mammal.md)
+ - [Model.MapTest](docs/MapTest.md)
+ - [Model.MixedPropertiesAndAdditionalPropertiesClass](docs/MixedPropertiesAndAdditionalPropertiesClass.md)
+ - [Model.Model200Response](docs/Model200Response.md)
+ - [Model.ModelClient](docs/ModelClient.md)
+ - [Model.Name](docs/Name.md)
+ - [Model.NotificationtestGetElementsV1ResponseMPayload](docs/NotificationtestGetElementsV1ResponseMPayload.md)
+ - [Model.NullableClass](docs/NullableClass.md)
+ - [Model.NullableGuidClass](docs/NullableGuidClass.md)
+ - [Model.NullableShape](docs/NullableShape.md)
+ - [Model.NumberOnly](docs/NumberOnly.md)
+ - [Model.ObjectWithDeprecatedFields](docs/ObjectWithDeprecatedFields.md)
+ - [Model.OneOfString](docs/OneOfString.md)
+ - [Model.Order](docs/Order.md)
+ - [Model.OuterComposite](docs/OuterComposite.md)
+ - [Model.OuterEnum](docs/OuterEnum.md)
+ - [Model.OuterEnumDefaultValue](docs/OuterEnumDefaultValue.md)
+ - [Model.OuterEnumInteger](docs/OuterEnumInteger.md)
+ - [Model.OuterEnumIntegerDefaultValue](docs/OuterEnumIntegerDefaultValue.md)
+ - [Model.OuterEnumTest](docs/OuterEnumTest.md)
+ - [Model.ParentPet](docs/ParentPet.md)
+ - [Model.Pet](docs/Pet.md)
+ - [Model.Pig](docs/Pig.md)
+ - [Model.PolymorphicProperty](docs/PolymorphicProperty.md)
+ - [Model.Quadrilateral](docs/Quadrilateral.md)
+ - [Model.QuadrilateralInterface](docs/QuadrilateralInterface.md)
+ - [Model.ReadOnlyFirst](docs/ReadOnlyFirst.md)
+ - [Model.RequiredClass](docs/RequiredClass.md)
+ - [Model.Return](docs/Return.md)
+ - [Model.RolesReportsHash](docs/RolesReportsHash.md)
+ - [Model.RolesReportsHashRole](docs/RolesReportsHashRole.md)
+ - [Model.ScaleneTriangle](docs/ScaleneTriangle.md)
+ - [Model.Shape](docs/Shape.md)
+ - [Model.ShapeInterface](docs/ShapeInterface.md)
+ - [Model.ShapeOrNull](docs/ShapeOrNull.md)
+ - [Model.SimpleQuadrilateral](docs/SimpleQuadrilateral.md)
+ - [Model.SpecialModelName](docs/SpecialModelName.md)
+ - [Model.Tag](docs/Tag.md)
+ - [Model.TestCollectionEndingWithWordList](docs/TestCollectionEndingWithWordList.md)
+ - [Model.TestCollectionEndingWithWordListObject](docs/TestCollectionEndingWithWordListObject.md)
+ - [Model.TestInlineFreeformAdditionalPropertiesRequest](docs/TestInlineFreeformAdditionalPropertiesRequest.md)
+ - [Model.Triangle](docs/Triangle.md)
+ - [Model.TriangleInterface](docs/TriangleInterface.md)
+ - [Model.User](docs/User.md)
+ - [Model.Whale](docs/Whale.md)
+ - [Model.Zebra](docs/Zebra.md)
+ - [Model.ZeroBasedEnum](docs/ZeroBasedEnum.md)
+ - [Model.ZeroBasedEnumClass](docs/ZeroBasedEnumClass.md)
+
+
+<a id="documentation-for-authorization"></a>
+## Documentation for Authorization
+
+
+Authentication schemes defined for the API:
+<a id="petstore_auth"></a>
+### petstore_auth
+
+- **Type**: OAuth
+- **Flow**: implicit
+- **Authorization URL**: http://petstore.swagger.io/api/oauth/dialog
+- **Scopes**: 
+  - write:pets: modify pets in your account
+  - read:pets: read your pets
+
+<a id="api_key"></a>
+### api_key
+
+- **Type**: API key
+- **API key parameter name**: api_key
+- **Location**: HTTP header
+
+<a id="api_key_query"></a>
+### api_key_query
+
+- **Type**: API key
+- **API key parameter name**: api_key_query
+- **Location**: URL query string
+
+<a id="http_basic_test"></a>
+### http_basic_test
+
+- **Type**: HTTP basic authentication
+
+<a id="bearer_test"></a>
+### bearer_test
+
+- **Type**: Bearer Authentication
+
+<a id="http_signature_test"></a>
+### http_signature_test
+
+- **Type**: HTTP signature authentication
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/api/openapi.yaml b/samples/client/petstore/csharp/OpenAPIClient-net8.0/api/openapi.yaml
new file mode 100644
index 00000000000..70e89968fbe
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/api/openapi.yaml
@@ -0,0 +1,2824 @@
+openapi: 3.0.0
+info:
+  description: "This spec is mainly for testing Petstore server and contains fake\
+    \ endpoints, models. Please do not use this for any other purpose. Special characters:\
+    \ \" \\"
+  license:
+    name: Apache-2.0
+    url: https://www.apache.org/licenses/LICENSE-2.0.html
+  title: OpenAPI Petstore
+  version: 1.0.0
+servers:
+- description: petstore server
+  url: "http://{server}.swagger.io:{port}/v2"
+  variables:
+    server:
+      default: petstore
+      enum:
+      - petstore
+      - qa-petstore
+      - dev-petstore
+    port:
+      default: "80"
+      enum:
+      - "80"
+      - "8080"
+- description: The local server
+  url: "https://localhost:8080/{version}"
+  variables:
+    version:
+      default: v2
+      enum:
+      - v1
+      - v2
+- description: The local server without variables
+  url: https://127.0.0.1/no_variable
+tags:
+- description: Everything about your Pets
+  name: pet
+- description: Access to Petstore orders
+  name: store
+- description: Operations about user
+  name: user
+paths:
+  /roles/report:
+    get:
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                items:
+                  $ref: '#/components/schemas/RolesReport'
+                type: array
+          description: returns report
+  /hello:
+    get:
+      description: Hello
+      operationId: Hello
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                items:
+                  format: uuid
+                  type: string
+                type: array
+          description: UUIDs
+      summary: Hello
+  /foo:
+    get:
+      responses:
+        default:
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/_foo_get_default_response'
+          description: response
+  /pet:
+    post:
+      description: ""
+      operationId: addPet
+      requestBody:
+        $ref: '#/components/requestBodies/Pet'
+      responses:
+        "405":
+          description: Invalid input
+      security:
+      - http_signature_test: []
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: Add a new pet to the store
+      tags:
+      - pet
+    put:
+      description: ""
+      operationId: updatePet
+      requestBody:
+        $ref: '#/components/requestBodies/Pet'
+      responses:
+        "400":
+          description: Invalid ID supplied
+        "404":
+          description: Pet not found
+        "405":
+          description: Validation exception
+      security:
+      - http_signature_test: []
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: Update an existing pet
+      tags:
+      - pet
+    servers:
+    - url: http://petstore.swagger.io/v2
+    - url: http://path-server-test.petstore.local/v2
+  /pet/findByStatus:
+    get:
+      description: Multiple status values can be provided with comma separated strings
+      operationId: findPetsByStatus
+      parameters:
+      - deprecated: true
+        description: Status values that need to be considered for filter
+        explode: false
+        in: query
+        name: status
+        required: true
+        schema:
+          items:
+            default: available
+            enum:
+            - available
+            - pending
+            - sold
+            type: string
+          type: array
+        style: form
+      responses:
+        "200":
+          content:
+            application/xml:
+              schema:
+                items:
+                  $ref: '#/components/schemas/Pet'
+                type: array
+            application/json:
+              schema:
+                items:
+                  $ref: '#/components/schemas/Pet'
+                type: array
+          description: successful operation
+        "400":
+          description: Invalid status value
+      security:
+      - http_signature_test: []
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: Finds Pets by status
+      tags:
+      - pet
+  /pet/findByTags:
+    get:
+      deprecated: true
+      description: "Multiple tags can be provided with comma separated strings. Use\
+        \ tag1, tag2, tag3 for testing."
+      operationId: findPetsByTags
+      parameters:
+      - description: Tags to filter by
+        explode: false
+        in: query
+        name: tags
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+        style: form
+      responses:
+        "200":
+          content:
+            application/xml:
+              schema:
+                items:
+                  $ref: '#/components/schemas/Pet'
+                type: array
+            application/json:
+              schema:
+                items:
+                  $ref: '#/components/schemas/Pet'
+                type: array
+          description: successful operation
+        "400":
+          description: Invalid tag value
+      security:
+      - http_signature_test: []
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: Finds Pets by tags
+      tags:
+      - pet
+  /pet/{petId}:
+    delete:
+      description: ""
+      operationId: deletePet
+      parameters:
+      - explode: false
+        in: header
+        name: api_key
+        required: false
+        schema:
+          type: string
+        style: simple
+      - description: Pet id to delete
+        explode: false
+        in: path
+        name: petId
+        required: true
+        schema:
+          format: int64
+          type: integer
+        style: simple
+      responses:
+        "400":
+          description: Invalid pet value
+      security:
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: Deletes a pet
+      tags:
+      - pet
+    get:
+      description: Returns a single pet
+      operationId: getPetById
+      parameters:
+      - description: ID of pet to return
+        explode: false
+        in: path
+        name: petId
+        required: true
+        schema:
+          format: int64
+          type: integer
+        style: simple
+      responses:
+        "200":
+          content:
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/Pet'
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Pet'
+          description: successful operation
+        "400":
+          description: Invalid ID supplied
+        "404":
+          description: Pet not found
+      security:
+      - api_key: []
+      summary: Find pet by ID
+      tags:
+      - pet
+    post:
+      description: ""
+      operationId: updatePetWithForm
+      parameters:
+      - description: ID of pet that needs to be updated
+        explode: false
+        in: path
+        name: petId
+        required: true
+        schema:
+          format: int64
+          type: integer
+        style: simple
+      requestBody:
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/updatePetWithForm_request'
+      responses:
+        "405":
+          description: Invalid input
+      security:
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: Updates a pet in the store with form data
+      tags:
+      - pet
+  /pet/{petId}/uploadImage:
+    post:
+      description: ""
+      operationId: uploadFile
+      parameters:
+      - description: ID of pet to update
+        explode: false
+        in: path
+        name: petId
+        required: true
+        schema:
+          format: int64
+          type: integer
+        style: simple
+      requestBody:
+        content:
+          multipart/form-data:
+            schema:
+              $ref: '#/components/schemas/uploadFile_request'
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiResponse'
+          description: successful operation
+      security:
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: uploads an image
+      tags:
+      - pet
+  /store/inventory:
+    get:
+      description: Returns a map of status codes to quantities
+      operationId: getInventory
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                additionalProperties:
+                  format: int32
+                  type: integer
+                type: object
+          description: successful operation
+      security:
+      - api_key: []
+      summary: Returns pet inventories by status
+      tags:
+      - store
+  /store/order:
+    post:
+      description: ""
+      operationId: placeOrder
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/Order'
+        description: order placed for purchasing the pet
+        required: true
+      responses:
+        "200":
+          content:
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/Order'
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Order'
+          description: successful operation
+        "400":
+          description: Invalid Order
+      summary: Place an order for a pet
+      tags:
+      - store
+  /store/order/{order_id}:
+    delete:
+      description: For valid response try integer IDs with value < 1000. Anything
+        above 1000 or nonintegers will generate API errors
+      operationId: deleteOrder
+      parameters:
+      - description: ID of the order that needs to be deleted
+        explode: false
+        in: path
+        name: order_id
+        required: true
+        schema:
+          type: string
+        style: simple
+      responses:
+        "400":
+          description: Invalid ID supplied
+        "404":
+          description: Order not found
+      summary: Delete purchase order by ID
+      tags:
+      - store
+    get:
+      description: For valid response try integer IDs with value <= 5 or > 10. Other
+        values will generate exceptions
+      operationId: getOrderById
+      parameters:
+      - description: ID of pet that needs to be fetched
+        explode: false
+        in: path
+        name: order_id
+        required: true
+        schema:
+          format: int64
+          maximum: 5
+          minimum: 1
+          type: integer
+        style: simple
+      responses:
+        "200":
+          content:
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/Order'
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Order'
+          description: successful operation
+        "400":
+          description: Invalid ID supplied
+        "404":
+          description: Order not found
+      summary: Find purchase order by ID
+      tags:
+      - store
+  /user:
+    post:
+      description: This can only be done by the logged in user.
+      operationId: createUser
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/User'
+        description: Created user object
+        required: true
+      responses:
+        default:
+          description: successful operation
+      summary: Create user
+      tags:
+      - user
+  /user/createWithArray:
+    post:
+      description: ""
+      operationId: createUsersWithArrayInput
+      requestBody:
+        $ref: '#/components/requestBodies/UserArray'
+      responses:
+        default:
+          description: successful operation
+      summary: Creates list of users with given input array
+      tags:
+      - user
+  /user/createWithList:
+    post:
+      description: ""
+      operationId: createUsersWithListInput
+      requestBody:
+        $ref: '#/components/requestBodies/UserArray'
+      responses:
+        default:
+          description: successful operation
+      summary: Creates list of users with given input array
+      tags:
+      - user
+  /user/login:
+    get:
+      description: ""
+      operationId: loginUser
+      parameters:
+      - description: The user name for login
+        explode: true
+        in: query
+        name: username
+        required: true
+        schema:
+          type: string
+        style: form
+      - description: The password for login in clear text
+        explode: true
+        in: query
+        name: password
+        required: true
+        schema:
+          type: string
+        style: form
+      responses:
+        "200":
+          content:
+            application/xml:
+              schema:
+                type: string
+            application/json:
+              schema:
+                type: string
+          description: successful operation
+          headers:
+            X-Rate-Limit:
+              description: calls per hour allowed by the user
+              explode: false
+              schema:
+                format: int32
+                type: integer
+              style: simple
+            X-Expires-After:
+              description: date in UTC when token expires
+              explode: false
+              schema:
+                format: date-time
+                type: string
+              style: simple
+        "400":
+          description: Invalid username/password supplied
+      summary: Logs user into the system
+      tags:
+      - user
+  /user/logout:
+    get:
+      description: ""
+      operationId: logoutUser
+      responses:
+        default:
+          description: successful operation
+      summary: Logs out current logged in user session
+      tags:
+      - user
+  /user/{username}:
+    delete:
+      description: This can only be done by the logged in user.
+      operationId: deleteUser
+      parameters:
+      - description: The name that needs to be deleted
+        explode: false
+        in: path
+        name: username
+        required: true
+        schema:
+          type: string
+        style: simple
+      responses:
+        "400":
+          description: Invalid username supplied
+        "404":
+          description: User not found
+      summary: Delete user
+      tags:
+      - user
+    get:
+      description: ""
+      operationId: getUserByName
+      parameters:
+      - description: The name that needs to be fetched. Use user1 for testing.
+        explode: false
+        in: path
+        name: username
+        required: true
+        schema:
+          type: string
+        style: simple
+      responses:
+        "200":
+          content:
+            application/xml:
+              schema:
+                $ref: '#/components/schemas/User'
+            application/json:
+              schema:
+                $ref: '#/components/schemas/User'
+          description: successful operation
+        "400":
+          description: Invalid username supplied
+        "404":
+          description: User not found
+      summary: Get user by user name
+      tags:
+      - user
+    put:
+      description: This can only be done by the logged in user.
+      operationId: updateUser
+      parameters:
+      - description: name that need to be deleted
+        explode: false
+        in: path
+        name: username
+        required: true
+        schema:
+          type: string
+        style: simple
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/User'
+        description: Updated user object
+        required: true
+      responses:
+        "400":
+          description: Invalid user supplied
+        "404":
+          description: User not found
+      summary: Updated user
+      tags:
+      - user
+  /fake_classname_test:
+    patch:
+      description: To test class name in snake case
+      operationId: testClassname
+      requestBody:
+        $ref: '#/components/requestBodies/Client'
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Client'
+          description: successful operation
+      security:
+      - api_key_query: []
+      summary: To test class name in snake case
+      tags:
+      - fake_classname_tags 123#$%^
+  /fake:
+    delete:
+      description: Fake endpoint to test group parameters (optional)
+      operationId: testGroupParameters
+      parameters:
+      - description: Required String in group parameters
+        explode: true
+        in: query
+        name: required_string_group
+        required: true
+        schema:
+          type: integer
+        style: form
+      - description: Required Boolean in group parameters
+        explode: false
+        in: header
+        name: required_boolean_group
+        required: true
+        schema:
+          type: boolean
+        style: simple
+      - description: Required Integer in group parameters
+        explode: true
+        in: query
+        name: required_int64_group
+        required: true
+        schema:
+          format: int64
+          type: integer
+        style: form
+      - description: String in group parameters
+        explode: true
+        in: query
+        name: string_group
+        required: false
+        schema:
+          type: integer
+        style: form
+      - description: Boolean in group parameters
+        explode: false
+        in: header
+        name: boolean_group
+        required: false
+        schema:
+          type: boolean
+        style: simple
+      - description: Integer in group parameters
+        explode: true
+        in: query
+        name: int64_group
+        required: false
+        schema:
+          format: int64
+          type: integer
+        style: form
+      responses:
+        "400":
+          description: Something wrong
+      security:
+      - bearer_test: []
+      summary: Fake endpoint to test group parameters (optional)
+      tags:
+      - fake
+      x-group-parameters: true
+    get:
+      description: To test enum parameters
+      operationId: testEnumParameters
+      parameters:
+      - description: Header parameter enum test (string array)
+        explode: false
+        in: header
+        name: enum_header_string_array
+        required: false
+        schema:
+          items:
+            default: $
+            enum:
+            - '>'
+            - $
+            type: string
+          type: array
+        style: simple
+      - description: Header parameter enum test (string)
+        explode: false
+        in: header
+        name: enum_header_string
+        required: false
+        schema:
+          default: -efg
+          enum:
+          - _abc
+          - -efg
+          - (xyz)
+          type: string
+        style: simple
+      - description: Query parameter enum test (string array)
+        explode: true
+        in: query
+        name: enum_query_string_array
+        required: false
+        schema:
+          items:
+            default: $
+            enum:
+            - '>'
+            - $
+            type: string
+          type: array
+        style: form
+      - description: Query parameter enum test (string)
+        explode: true
+        in: query
+        name: enum_query_string
+        required: false
+        schema:
+          default: -efg
+          enum:
+          - _abc
+          - -efg
+          - (xyz)
+          type: string
+        style: form
+      - description: Query parameter enum test (double)
+        explode: true
+        in: query
+        name: enum_query_integer
+        required: false
+        schema:
+          enum:
+          - 1
+          - -2
+          format: int32
+          type: integer
+        style: form
+      - description: Query parameter enum test (double)
+        explode: true
+        in: query
+        name: enum_query_double
+        required: false
+        schema:
+          enum:
+          - 1.1
+          - -1.2
+          format: double
+          type: number
+        style: form
+      requestBody:
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/testEnumParameters_request'
+      responses:
+        "400":
+          description: Invalid request
+        "404":
+          description: Not found
+      summary: To test enum parameters
+      tags:
+      - fake
+    patch:
+      description: To test "client" model
+      operationId: testClientModel
+      requestBody:
+        $ref: '#/components/requestBodies/Client'
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Client'
+          description: successful operation
+      summary: To test "client" model
+      tags:
+      - fake
+    post:
+      description: |
+        Fake endpoint for testing various parameters
+        假端點
+        偽のエンドポイント
+        가짜 엔드 포인트
+      operationId: testEndpointParameters
+      requestBody:
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/testEndpointParameters_request'
+      responses:
+        "400":
+          description: Invalid username supplied
+        "404":
+          description: User not found
+      security:
+      - http_basic_test: []
+      summary: |
+        Fake endpoint for testing various parameters
+        假端點
+        偽のエンドポイント
+        가짜 엔드 포인트
+      tags:
+      - fake
+  /fake/outer/number:
+    post:
+      description: Test serialization of outer number types
+      operationId: fakeOuterNumberSerialize
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/OuterNumber'
+        description: Input number as post body
+      responses:
+        "200":
+          content:
+            '*/*':
+              schema:
+                $ref: '#/components/schemas/OuterNumber'
+          description: Output number
+      tags:
+      - fake
+  /fake/outer/string:
+    post:
+      description: Test serialization of outer string types
+      operationId: fakeOuterStringSerialize
+      parameters:
+      - description: Required UUID String
+        explode: true
+        in: query
+        name: required_string_uuid
+        required: true
+        schema:
+          format: uuid
+          type: string
+        style: form
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/OuterString'
+        description: Input string as post body
+      responses:
+        "200":
+          content:
+            '*/*':
+              schema:
+                $ref: '#/components/schemas/OuterString'
+          description: Output string
+      tags:
+      - fake
+  /fake/outer/boolean:
+    post:
+      description: Test serialization of outer boolean types
+      operationId: fakeOuterBooleanSerialize
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/OuterBoolean'
+        description: Input boolean as post body
+      responses:
+        "200":
+          content:
+            '*/*':
+              schema:
+                $ref: '#/components/schemas/OuterBoolean'
+          description: Output boolean
+      tags:
+      - fake
+  /fake/outer/composite:
+    post:
+      description: Test serialization of object with outer number type
+      operationId: fakeOuterCompositeSerialize
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/OuterComposite'
+        description: Input composite as post body
+      responses:
+        "200":
+          content:
+            '*/*':
+              schema:
+                $ref: '#/components/schemas/OuterComposite'
+          description: Output composite
+      tags:
+      - fake
+  /fake/jsonFormData:
+    get:
+      description: ""
+      operationId: testJsonFormData
+      requestBody:
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/testJsonFormData_request'
+      responses:
+        "200":
+          description: successful operation
+      summary: test json serialization of form data
+      tags:
+      - fake
+  /fake/inline-additionalProperties:
+    post:
+      description: ""
+      operationId: testInlineAdditionalProperties
+      requestBody:
+        content:
+          application/json:
+            schema:
+              additionalProperties:
+                type: string
+              type: object
+        description: request body
+        required: true
+      responses:
+        "200":
+          description: successful operation
+      summary: test inline additionalProperties
+      tags:
+      - fake
+  /fake/inline-freeform-additionalProperties:
+    post:
+      description: ""
+      operationId: testInlineFreeformAdditionalProperties
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/testInlineFreeformAdditionalProperties_request'
+        description: request body
+        required: true
+      responses:
+        "200":
+          description: successful operation
+      summary: test inline free-form additionalProperties
+      tags:
+      - fake
+  /fake/body-with-query-params:
+    put:
+      operationId: testBodyWithQueryParams
+      parameters:
+      - explode: true
+        in: query
+        name: query
+        required: true
+        schema:
+          type: string
+        style: form
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/User'
+        required: true
+      responses:
+        "200":
+          description: Success
+      tags:
+      - fake
+  /another-fake/dummy:
+    patch:
+      description: To test special tags and operation ID starting with number
+      operationId: 123_test_@#$%_special_tags
+      requestBody:
+        $ref: '#/components/requestBodies/Client'
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Client'
+          description: successful operation
+      summary: To test special tags
+      tags:
+      - $another-fake?
+  /fake/body-with-file-schema:
+    put:
+      description: "For this test, the body for this request much reference a schema\
+        \ named `File`."
+      operationId: testBodyWithFileSchema
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/FileSchemaTestClass'
+        required: true
+      responses:
+        "200":
+          description: Success
+      tags:
+      - fake
+  /fake/test-query-parameters:
+    put:
+      description: To test the collection format in query parameters
+      operationId: testQueryParameterCollectionFormat
+      parameters:
+      - explode: true
+        in: query
+        name: pipe
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+        style: form
+      - explode: false
+        in: query
+        name: ioutil
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+        style: form
+      - explode: false
+        in: query
+        name: http
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+        style: spaceDelimited
+      - explode: false
+        in: query
+        name: url
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+        style: form
+      - explode: true
+        in: query
+        name: context
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+        style: form
+      - explode: true
+        in: query
+        name: requiredNotNullable
+        required: true
+        schema:
+          nullable: false
+          type: string
+        style: form
+      - explode: true
+        in: query
+        name: requiredNullable
+        required: true
+        schema:
+          nullable: true
+          type: string
+        style: form
+      - explode: true
+        in: query
+        name: notRequiredNotNullable
+        required: false
+        schema:
+          nullable: false
+          type: string
+        style: form
+      - explode: true
+        in: query
+        name: notRequiredNullable
+        required: false
+        schema:
+          nullable: true
+          type: string
+        style: form
+      responses:
+        "200":
+          description: Success
+      tags:
+      - fake
+  /fake/{petId}/uploadImageWithRequiredFile:
+    post:
+      description: ""
+      operationId: uploadFileWithRequiredFile
+      parameters:
+      - description: ID of pet to update
+        explode: false
+        in: path
+        name: petId
+        required: true
+        schema:
+          format: int64
+          type: integer
+        style: simple
+      requestBody:
+        content:
+          multipart/form-data:
+            schema:
+              $ref: '#/components/schemas/uploadFileWithRequiredFile_request'
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ApiResponse'
+            application/vnd.openxmlformats-officedocument.spreadsheetml.sheet:
+              schema:
+                $ref: '#/components/schemas/ApiResponse'
+          description: successful operation
+      security:
+      - petstore_auth:
+        - write:pets
+        - read:pets
+      summary: uploads an image (required)
+      tags:
+      - pet
+  /fake/health:
+    get:
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HealthCheckResult'
+          description: The instance started successfully
+      summary: Health check endpoint
+      tags:
+      - fake
+  /fake/array-of-enums:
+    get:
+      operationId: getArrayOfEnums
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ArrayOfEnums'
+          description: Got named array of enums
+      summary: Array of Enums
+      tags:
+      - fake
+  /country:
+    post:
+      operationId: getCountry
+      requestBody:
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/getCountry_request'
+      responses:
+        "200":
+          description: OK
+  /test:
+    get:
+      operationId: Test
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/notificationtest-getElements-v1-Response-mPayload'
+          description: Successful response
+      summary: Retrieve an existing Notificationtest's Elements
+components:
+  requestBodies:
+    UserArray:
+      content:
+        application/json:
+          examples:
+            simple-list:
+              description: Should not get into code examples
+              summary: Simple list example
+              value:
+              - username: foo
+              - username: bar
+          schema:
+            items:
+              $ref: '#/components/schemas/User'
+            type: array
+      description: List of user object
+      required: true
+    Client:
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/Client'
+      description: client model
+      required: true
+    Pet:
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/Pet'
+        application/xml:
+          schema:
+            $ref: '#/components/schemas/Pet'
+      description: Pet object that needs to be added to the store
+      required: true
+  schemas:
+    RolesReport:
+      description: Roles report
+      items:
+        $ref: '#/components/schemas/RolesReportsHash'
+      type: array
+    RolesReportsHash:
+      description: Role report Hash
+      properties:
+        role_uuid:
+          format: uuid
+          type: string
+        role:
+          $ref: '#/components/schemas/RolesReportsHash_role'
+      type: object
+    Foo:
+      example:
+        bar: bar
+      properties:
+        bar:
+          default: bar
+          type: string
+      type: object
+    Bar:
+      default: bar
+      type: string
+    Order:
+      example:
+        petId: 6
+        quantity: 1
+        id: 0
+        shipDate: 2020-02-02T20:20:20.000222Z
+        complete: false
+        status: placed
+      properties:
+        id:
+          format: int64
+          type: integer
+        petId:
+          format: int64
+          type: integer
+        quantity:
+          format: int32
+          type: integer
+        shipDate:
+          example: 2020-02-02T20:20:20.000222Z
+          format: date-time
+          type: string
+        status:
+          description: Order Status
+          enum:
+          - placed
+          - approved
+          - delivered
+          type: string
+        complete:
+          default: false
+          type: boolean
+      type: object
+      xml:
+        name: Order
+    Category:
+      example:
+        name: default-name
+        id: 6
+      properties:
+        id:
+          format: int64
+          type: integer
+        name:
+          default: default-name
+          type: string
+      required:
+      - name
+      type: object
+      xml:
+        name: Category
+    User:
+      example:
+        firstName: firstName
+        lastName: lastName
+        password: password
+        userStatus: 6
+        objectWithNoDeclaredPropsNullable: "{}"
+        phone: phone
+        objectWithNoDeclaredProps: "{}"
+        id: 0
+        anyTypePropNullable: ""
+        email: email
+        anyTypeProp: ""
+        username: username
+      properties:
+        id:
+          format: int64
+          type: integer
+          x-is-unique: true
+        username:
+          type: string
+        firstName:
+          type: string
+        lastName:
+          type: string
+        email:
+          type: string
+        password:
+          type: string
+        phone:
+          type: string
+        userStatus:
+          description: User Status
+          format: int32
+          type: integer
+        objectWithNoDeclaredProps:
+          description: test code generation for objects Value must be a map of strings
+            to values. It cannot be the 'null' value.
+          type: object
+        objectWithNoDeclaredPropsNullable:
+          description: test code generation for nullable objects. Value must be a
+            map of strings to values or the 'null' value.
+          nullable: true
+          type: object
+        anyTypeProp:
+          description: "test code generation for any type Here the 'type' attribute\
+            \ is not specified, which means the value can be anything, including the\
+            \ null value, string, number, boolean, array or object. See https://github.com/OAI/OpenAPI-Specification/issues/1389"
+        anyTypePropNullable:
+          description: "test code generation for any type Here the 'type' attribute\
+            \ is not specified, which means the value can be anything, including the\
+            \ null value, string, number, boolean, array or object. The 'nullable'\
+            \ attribute does not change the allowed values."
+          nullable: true
+      type: object
+      xml:
+        name: User
+    Tag:
+      example:
+        name: name
+        id: 1
+      properties:
+        id:
+          format: int64
+          type: integer
+        name:
+          type: string
+      type: object
+      xml:
+        name: Tag
+    Pet:
+      example:
+        photoUrls:
+        - photoUrls
+        - photoUrls
+        name: doggie
+        id: 0
+        category:
+          name: default-name
+          id: 6
+        tags:
+        - name: name
+          id: 1
+        - name: name
+          id: 1
+        status: available
+      properties:
+        id:
+          format: int64
+          type: integer
+          x-is-unique: true
+        category:
+          $ref: '#/components/schemas/Category'
+        name:
+          example: doggie
+          type: string
+        photoUrls:
+          items:
+            type: string
+          type: array
+          xml:
+            name: photoUrl
+            wrapped: true
+        tags:
+          items:
+            $ref: '#/components/schemas/Tag'
+          type: array
+          xml:
+            name: tag
+            wrapped: true
+        status:
+          description: pet status in the store
+          enum:
+          - available
+          - pending
+          - sold
+          type: string
+      required:
+      - name
+      - photoUrls
+      type: object
+      xml:
+        name: Pet
+    ApiResponse:
+      example:
+        code: 0
+        type: type
+        message: message
+      properties:
+        code:
+          format: int32
+          type: integer
+        type:
+          type: string
+        message:
+          type: string
+      type: object
+    Return:
+      description: Model for testing reserved words
+      properties:
+        return:
+          format: int32
+          type: integer
+      xml:
+        name: Return
+    Name:
+      description: Model for testing model name same as property name
+      properties:
+        name:
+          format: int32
+          type: integer
+        snake_case:
+          format: int32
+          readOnly: true
+          type: integer
+        property:
+          type: string
+        "123Number":
+          readOnly: true
+          type: integer
+      required:
+      - name
+      xml:
+        name: Name
+    "200_response":
+      description: Model for testing model name starting with number
+      properties:
+        name:
+          format: int32
+          type: integer
+        class:
+          type: string
+      xml:
+        name: Name
+    ClassModel:
+      description: Model for testing model with "_class" property
+      properties:
+        _class:
+          type: string
+    Dog:
+      allOf:
+      - $ref: '#/components/schemas/Animal'
+      - properties:
+          breed:
+            type: string
+        type: object
+    Cat:
+      allOf:
+      - $ref: '#/components/schemas/Animal'
+      - $ref: '#/components/schemas/Address'
+      - properties:
+          declawed:
+            type: boolean
+        type: object
+    Address:
+      additionalProperties:
+        type: integer
+      type: object
+    Animal:
+      discriminator:
+        propertyName: className
+      properties:
+        className:
+          type: string
+        color:
+          default: red
+          type: string
+      required:
+      - className
+      type: object
+    AnimalFarm:
+      items:
+        $ref: '#/components/schemas/Animal'
+      type: array
+    format_test:
+      properties:
+        integer:
+          maximum: 100
+          minimum: 10
+          multipleOf: 2
+          type: integer
+        int32:
+          format: int32
+          maximum: 200
+          minimum: 20
+          type: integer
+        unsigned_integer:
+          format: int32
+          maximum: 200
+          minimum: 20
+          type: integer
+          x-unsigned: true
+        int64:
+          format: int64
+          type: integer
+        unsigned_long:
+          format: int64
+          type: integer
+          x-unsigned: true
+        number:
+          maximum: 543.2
+          minimum: 32.1
+          multipleOf: 32.5
+          type: number
+        float:
+          format: float
+          maximum: 987.6
+          minimum: 54.3
+          type: number
+        double:
+          format: double
+          maximum: 123.4
+          minimum: 67.8
+          type: number
+        decimal:
+          format: number
+          type: string
+        string:
+          pattern: "/[a-z]/i"
+          type: string
+        byte:
+          format: byte
+          type: string
+        binary:
+          format: binary
+          type: string
+        date:
+          example: 2020-02-02
+          format: date
+          type: string
+        dateTime:
+          example: 2007-12-03T10:15:30+01:00
+          format: date-time
+          type: string
+        uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
+          format: uuid
+          type: string
+        password:
+          format: password
+          maxLength: 64
+          minLength: 10
+          type: string
+        pattern_with_digits:
+          description: A string that is a 10 digit number. Can have leading zeros.
+          pattern: "^\\d{10}$"
+          type: string
+        pattern_with_digits_and_delimiter:
+          description: A string starting with 'image_' (case insensitive) and one
+            to three digits following i.e. Image_01.
+          pattern: "/^image_\\d{1,3}$/i"
+          type: string
+        pattern_with_backslash:
+          description: None
+          pattern: "^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\\\
+            /([0-9]|[1-2][0-9]|3[0-2]))$"
+          type: string
+      required:
+      - byte
+      - date
+      - number
+      - password
+      type: object
+    EnumClass:
+      default: -efg
+      enum:
+      - _abc
+      - -efg
+      - (xyz)
+      type: string
+    Outer_Enum_Test:
+      enum:
+      - UPPER
+      - lower
+      - ""
+      - "Value\twith tab"
+      - Value with " quote
+      - Value with escaped \" quote
+      - |-
+        Duplicate
+        value
+      - "Duplicate\r\nvalue"
+      type: string
+    Enum_Test:
+      properties:
+        enum_string:
+          enum:
+          - UPPER
+          - lower
+          - ""
+          - "Value\twith tab"
+          - Value with " quote
+          - Value with escaped \" quote
+          - |-
+            Duplicate
+            value
+          - "Duplicate\r\nvalue"
+          type: string
+        enum_string_required:
+          enum:
+          - UPPER
+          - lower
+          - ""
+          - "Value\twith tab"
+          - Value with " quote
+          - Value with escaped \" quote
+          - |-
+            Duplicate
+            value
+          - "Duplicate\r\nvalue"
+          type: string
+        enum_integer:
+          enum:
+          - 1
+          - -1
+          format: int32
+          type: integer
+        enum_integer_only:
+          enum:
+          - 2
+          - -2
+          type: integer
+        enum_number:
+          enum:
+          - 1.1
+          - -1.2
+          format: double
+          type: number
+        outerEnum:
+          $ref: '#/components/schemas/OuterEnum'
+        outerEnumInteger:
+          $ref: '#/components/schemas/OuterEnumInteger'
+        outerEnumDefaultValue:
+          $ref: '#/components/schemas/OuterEnumDefaultValue'
+        outerEnumIntegerDefaultValue:
+          $ref: '#/components/schemas/OuterEnumIntegerDefaultValue'
+      required:
+      - enum_string_required
+      type: object
+    AdditionalPropertiesClass:
+      properties:
+        map_property:
+          additionalProperties:
+            type: string
+          type: object
+        map_of_map_property:
+          additionalProperties:
+            additionalProperties:
+              type: string
+            type: object
+          type: object
+        anytype_1: {}
+        map_with_undeclared_properties_anytype_1:
+          type: object
+        map_with_undeclared_properties_anytype_2:
+          properties: {}
+          type: object
+        map_with_undeclared_properties_anytype_3:
+          additionalProperties: true
+          type: object
+        empty_map:
+          additionalProperties: false
+          description: "an object with no declared properties and no undeclared properties,\
+            \ hence it's an empty map."
+          type: object
+        map_with_undeclared_properties_string:
+          additionalProperties:
+            type: string
+          type: object
+      type: object
+    MixedPropertiesAndAdditionalPropertiesClass:
+      properties:
+        uuid_with_pattern:
+          format: uuid
+          pattern: "[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}"
+          type: string
+        uuid:
+          format: uuid
+          type: string
+        dateTime:
+          format: date-time
+          type: string
+        map:
+          additionalProperties:
+            $ref: '#/components/schemas/Animal'
+          type: object
+      type: object
+    List:
+      properties:
+        "123-list":
+          type: string
+      type: object
+    Client:
+      example:
+        client: client
+      properties:
+        client:
+          type: string
+      type: object
+    ReadOnlyFirst:
+      properties:
+        bar:
+          readOnly: true
+          type: string
+        baz:
+          type: string
+      type: object
+    hasOnlyReadOnly:
+      properties:
+        bar:
+          readOnly: true
+          type: string
+        foo:
+          readOnly: true
+          type: string
+      type: object
+    Capitalization:
+      properties:
+        smallCamel:
+          type: string
+        CapitalCamel:
+          type: string
+        small_Snake:
+          type: string
+        Capital_Snake:
+          type: string
+        SCA_ETH_Flow_Points:
+          type: string
+        ATT_NAME:
+          description: |
+            Name of the pet
+          type: string
+      type: object
+    MapTest:
+      properties:
+        map_map_of_string:
+          additionalProperties:
+            additionalProperties:
+              type: string
+            type: object
+          type: object
+        map_of_enum_string:
+          additionalProperties:
+            enum:
+            - UPPER
+            - lower
+            type: string
+          type: object
+        direct_map:
+          additionalProperties:
+            type: boolean
+          type: object
+        indirect_map:
+          additionalProperties:
+            type: boolean
+          type: object
+      type: object
+    ArrayTest:
+      properties:
+        array_of_string:
+          items:
+            type: string
+          type: array
+        array_array_of_integer:
+          items:
+            items:
+              format: int64
+              type: integer
+            type: array
+          type: array
+        array_array_of_model:
+          items:
+            items:
+              $ref: '#/components/schemas/ReadOnlyFirst'
+            type: array
+          type: array
+      type: object
+    NumberOnly:
+      properties:
+        JustNumber:
+          type: number
+      type: object
+      x-cls-compliant: true
+      x-com-visible: true
+    ArrayOfNumberOnly:
+      properties:
+        ArrayNumber:
+          items:
+            type: number
+          type: array
+      type: object
+    ArrayOfArrayOfNumberOnly:
+      properties:
+        ArrayArrayNumber:
+          items:
+            items:
+              type: number
+            type: array
+          type: array
+      type: object
+    EnumArrays:
+      properties:
+        just_symbol:
+          enum:
+          - '>='
+          - $
+          type: string
+        array_enum:
+          items:
+            enum:
+            - fish
+            - crab
+            type: string
+          type: array
+      type: object
+    OuterEnum:
+      enum:
+      - placed
+      - approved
+      - delivered
+      nullable: true
+      type: string
+    OuterEnumInteger:
+      enum:
+      - 0
+      - 1
+      - 2
+      type: integer
+    OuterEnumDefaultValue:
+      default: placed
+      enum:
+      - placed
+      - approved
+      - delivered
+      type: string
+    OuterEnumIntegerDefaultValue:
+      default: 0
+      enum:
+      - 0
+      - 1
+      - 2
+      type: integer
+    OuterComposite:
+      example:
+        my_string: my_string
+        my_number: 0.8008281904610115
+        my_boolean: true
+      properties:
+        my_number:
+          type: number
+        my_string:
+          type: string
+        my_boolean:
+          type: boolean
+          x-codegen-body-parameter-name: boolean_post_body
+      type: object
+    OuterNumber:
+      type: number
+    OuterString:
+      type: string
+    OuterBoolean:
+      type: boolean
+      x-codegen-body-parameter-name: boolean_post_body
+    StringBooleanMap:
+      additionalProperties:
+        type: boolean
+      type: object
+    FileSchemaTestClass:
+      example:
+        file:
+          sourceURI: sourceURI
+        files:
+        - sourceURI: sourceURI
+        - sourceURI: sourceURI
+      properties:
+        file:
+          $ref: '#/components/schemas/File'
+        files:
+          items:
+            $ref: '#/components/schemas/File'
+          type: array
+      type: object
+    File:
+      description: Must be named `File` for test.
+      example:
+        sourceURI: sourceURI
+      properties:
+        sourceURI:
+          description: Test capitalization
+          type: string
+      type: object
+    _special_model.name_:
+      properties:
+        $special[property.name]:
+          format: int64
+          type: integer
+        _special_model.name_:
+          type: string
+      xml:
+        name: "$special[model.name]"
+    HealthCheckResult:
+      description: Just a string to inform instance is up and running. Make it nullable
+        in hope to get it as pointer in generated model.
+      example:
+        NullableMessage: NullableMessage
+      properties:
+        NullableMessage:
+          nullable: true
+          type: string
+      type: object
+    RequiredClass:
+      properties:
+        required_nullable_integer_prop:
+          nullable: true
+          type: integer
+        required_notnullableinteger_prop:
+          nullable: false
+          type: integer
+        not_required_nullable_integer_prop:
+          nullable: true
+          type: integer
+        not_required_notnullableinteger_prop:
+          nullable: false
+          type: integer
+        required_nullable_string_prop:
+          nullable: true
+          type: string
+        required_notnullable_string_prop:
+          nullable: false
+          type: string
+        notrequired_nullable_string_prop:
+          nullable: true
+          type: string
+        notrequired_notnullable_string_prop:
+          nullable: false
+          type: string
+        required_nullable_boolean_prop:
+          nullable: true
+          type: boolean
+        required_notnullable_boolean_prop:
+          nullable: false
+          type: boolean
+        notrequired_nullable_boolean_prop:
+          nullable: true
+          type: boolean
+        notrequired_notnullable_boolean_prop:
+          nullable: false
+          type: boolean
+        required_nullable_date_prop:
+          format: date
+          nullable: true
+          type: string
+        required_not_nullable_date_prop:
+          format: date
+          nullable: false
+          type: string
+        not_required_nullable_date_prop:
+          format: date
+          nullable: true
+          type: string
+        not_required_notnullable_date_prop:
+          format: date
+          nullable: false
+          type: string
+        required_notnullable_datetime_prop:
+          format: date-time
+          nullable: false
+          type: string
+        required_nullable_datetime_prop:
+          format: date-time
+          nullable: true
+          type: string
+        notrequired_nullable_datetime_prop:
+          format: date-time
+          nullable: true
+          type: string
+        notrequired_notnullable_datetime_prop:
+          format: date-time
+          nullable: false
+          type: string
+        required_nullable_enum_integer:
+          enum:
+          - 1
+          - -1
+          format: int32
+          nullable: true
+          type: integer
+        required_notnullable_enum_integer:
+          enum:
+          - 1
+          - -1
+          format: int32
+          nullable: false
+          type: integer
+        notrequired_nullable_enum_integer:
+          enum:
+          - 1
+          - -1
+          format: int32
+          nullable: true
+          type: integer
+        notrequired_notnullable_enum_integer:
+          enum:
+          - 1
+          - -1
+          format: int32
+          nullable: false
+          type: integer
+        required_nullable_enum_integer_only:
+          enum:
+          - 2
+          - -2
+          nullable: true
+          type: integer
+        required_notnullable_enum_integer_only:
+          enum:
+          - 2
+          - -2
+          nullable: false
+          type: integer
+        notrequired_nullable_enum_integer_only:
+          enum:
+          - 2
+          - -2
+          nullable: true
+          type: integer
+        notrequired_notnullable_enum_integer_only:
+          enum:
+          - 2
+          - -2
+          nullable: false
+          type: integer
+        required_notnullable_enum_string:
+          enum:
+          - UPPER
+          - lower
+          - ""
+          - "Value\twith tab"
+          - Value with " quote
+          - Value with escaped \" quote
+          - |-
+            Duplicate
+            value
+          - "Duplicate\r\nvalue"
+          nullable: false
+          type: string
+        required_nullable_enum_string:
+          enum:
+          - UPPER
+          - lower
+          - ""
+          - "Value\twith tab"
+          - Value with " quote
+          - Value with escaped \" quote
+          - |-
+            Duplicate
+            value
+          - "Duplicate\r\nvalue"
+          nullable: true
+          type: string
+        notrequired_nullable_enum_string:
+          enum:
+          - UPPER
+          - lower
+          - ""
+          - "Value\twith tab"
+          - Value with " quote
+          - Value with escaped \" quote
+          - |-
+            Duplicate
+            value
+          - "Duplicate\r\nvalue"
+          nullable: true
+          type: string
+        notrequired_notnullable_enum_string:
+          enum:
+          - UPPER
+          - lower
+          - ""
+          - "Value\twith tab"
+          - Value with " quote
+          - Value with escaped \" quote
+          - |-
+            Duplicate
+            value
+          - "Duplicate\r\nvalue"
+          nullable: false
+          type: string
+        required_nullable_outerEnumDefaultValue:
+          allOf:
+          - $ref: '#/components/schemas/OuterEnumDefaultValue'
+          nullable: true
+        required_notnullable_outerEnumDefaultValue:
+          allOf:
+          - $ref: '#/components/schemas/OuterEnumDefaultValue'
+          nullable: false
+        notrequired_nullable_outerEnumDefaultValue:
+          allOf:
+          - $ref: '#/components/schemas/OuterEnumDefaultValue'
+          nullable: true
+        notrequired_notnullable_outerEnumDefaultValue:
+          allOf:
+          - $ref: '#/components/schemas/OuterEnumDefaultValue'
+          nullable: false
+        required_nullable_uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
+          format: uuid
+          nullable: true
+          type: string
+        required_notnullable_uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
+          format: uuid
+          nullable: false
+          type: string
+        notrequired_nullable_uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
+          format: uuid
+          nullable: true
+          type: string
+        notrequired_notnullable_uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
+          format: uuid
+          nullable: false
+          type: string
+        required_nullable_array_of_string:
+          items:
+            type: string
+          nullable: true
+          type: array
+        required_notnullable_array_of_string:
+          items:
+            type: string
+          nullable: false
+          type: array
+        notrequired_nullable_array_of_string:
+          items:
+            type: string
+          nullable: true
+          type: array
+        notrequired_notnullable_array_of_string:
+          items:
+            type: string
+          nullable: false
+          type: array
+      required:
+      - required_not_nullable_date_prop
+      - required_notnullable_array_of_string
+      - required_notnullable_boolean_prop
+      - required_notnullable_datetime_prop
+      - required_notnullable_enum_integer
+      - required_notnullable_enum_integer_only
+      - required_notnullable_enum_string
+      - required_notnullable_outerEnumDefaultValue
+      - required_notnullable_string_prop
+      - required_notnullable_uuid
+      - required_notnullableinteger_prop
+      - required_nullable_array_of_string
+      - required_nullable_boolean_prop
+      - required_nullable_date_prop
+      - required_nullable_datetime_prop
+      - required_nullable_enum_integer
+      - required_nullable_enum_integer_only
+      - required_nullable_enum_string
+      - required_nullable_integer_prop
+      - required_nullable_outerEnumDefaultValue
+      - required_nullable_string_prop
+      - required_nullable_uuid
+      type: object
+    NullableClass:
+      additionalProperties:
+        nullable: true
+        type: object
+      properties:
+        integer_prop:
+          nullable: true
+          type: integer
+        number_prop:
+          nullable: true
+          type: number
+        boolean_prop:
+          nullable: true
+          type: boolean
+        string_prop:
+          nullable: true
+          type: string
+        date_prop:
+          format: date
+          nullable: true
+          type: string
+        datetime_prop:
+          format: date-time
+          nullable: true
+          type: string
+        array_nullable_prop:
+          items:
+            type: object
+          nullable: true
+          type: array
+        array_and_items_nullable_prop:
+          items:
+            nullable: true
+            type: object
+          nullable: true
+          type: array
+        array_items_nullable:
+          items:
+            nullable: true
+            type: object
+          type: array
+        object_nullable_prop:
+          additionalProperties:
+            type: object
+          nullable: true
+          type: object
+        object_and_items_nullable_prop:
+          additionalProperties:
+            nullable: true
+            type: object
+          nullable: true
+          type: object
+        object_items_nullable:
+          additionalProperties:
+            nullable: true
+            type: object
+          type: object
+      type: object
+    fruit:
+      additionalProperties: false
+      oneOf:
+      - $ref: '#/components/schemas/apple'
+      - $ref: '#/components/schemas/banana'
+      properties:
+        color:
+          type: string
+    apple:
+      nullable: true
+      properties:
+        cultivar:
+          pattern: "^[a-zA-Z\\s]*$"
+          type: string
+        origin:
+          pattern: "/^[A-Z\\s]*$/i"
+          type: string
+        color_code:
+          pattern: "^#(([0-9a-fA-F]{2}){3}|([0-9a-fA-F]){3})$"
+          type: string
+      type: object
+    banana:
+      properties:
+        lengthCm:
+          type: number
+      type: object
+    mammal:
+      discriminator:
+        propertyName: className
+      oneOf:
+      - $ref: '#/components/schemas/whale'
+      - $ref: '#/components/schemas/zebra'
+      - $ref: '#/components/schemas/Pig'
+    whale:
+      properties:
+        hasBaleen:
+          type: boolean
+        hasTeeth:
+          type: boolean
+        className:
+          type: string
+      required:
+      - className
+      type: object
+    zebra:
+      additionalProperties: true
+      properties:
+        type:
+          enum:
+          - plains
+          - mountain
+          - grevys
+          type: string
+        className:
+          type: string
+      required:
+      - className
+      type: object
+    Pig:
+      discriminator:
+        propertyName: className
+      oneOf:
+      - $ref: '#/components/schemas/BasquePig'
+      - $ref: '#/components/schemas/DanishPig'
+    BasquePig:
+      properties:
+        className:
+          type: string
+      required:
+      - className
+      type: object
+    DanishPig:
+      properties:
+        className:
+          type: string
+      required:
+      - className
+      type: object
+    gmFruit:
+      additionalProperties: false
+      anyOf:
+      - $ref: '#/components/schemas/apple'
+      - $ref: '#/components/schemas/banana'
+      properties:
+        color:
+          type: string
+    fruitReq:
+      additionalProperties: false
+      nullable: true
+      oneOf:
+      - $ref: '#/components/schemas/appleReq'
+      - $ref: '#/components/schemas/bananaReq'
+    appleReq:
+      additionalProperties: false
+      properties:
+        cultivar:
+          type: string
+        mealy:
+          type: boolean
+      required:
+      - cultivar
+      type: object
+    bananaReq:
+      additionalProperties: false
+      properties:
+        lengthCm:
+          type: number
+        sweet:
+          type: boolean
+      required:
+      - lengthCm
+      type: object
+    Drawing:
+      additionalProperties:
+        $ref: '#/components/schemas/fruit'
+      properties:
+        mainShape:
+          $ref: '#/components/schemas/Shape'
+        shapeOrNull:
+          $ref: '#/components/schemas/ShapeOrNull'
+        nullableShape:
+          $ref: '#/components/schemas/NullableShape'
+        shapes:
+          items:
+            $ref: '#/components/schemas/Shape'
+          type: array
+      type: object
+    Shape:
+      discriminator:
+        propertyName: shapeType
+      oneOf:
+      - $ref: '#/components/schemas/Triangle'
+      - $ref: '#/components/schemas/Quadrilateral'
+    ShapeOrNull:
+      description: The value may be a shape or the 'null' value. This is introduced
+        in OAS schema >= 3.1.
+      discriminator:
+        propertyName: shapeType
+      nullable: true
+      oneOf:
+      - $ref: '#/components/schemas/Triangle'
+      - $ref: '#/components/schemas/Quadrilateral'
+    NullableShape:
+      description: The value may be a shape or the 'null' value. The 'nullable' attribute
+        was introduced in OAS schema >= 3.0 and has been deprecated in OAS schema
+        >= 3.1.
+      discriminator:
+        propertyName: shapeType
+      nullable: true
+      oneOf:
+      - $ref: '#/components/schemas/Triangle'
+      - $ref: '#/components/schemas/Quadrilateral'
+    ShapeInterface:
+      properties:
+        shapeType:
+          type: string
+      required:
+      - shapeType
+    TriangleInterface:
+      properties:
+        triangleType:
+          type: string
+      required:
+      - triangleType
+    Triangle:
+      discriminator:
+        propertyName: triangleType
+      oneOf:
+      - $ref: '#/components/schemas/EquilateralTriangle'
+      - $ref: '#/components/schemas/IsoscelesTriangle'
+      - $ref: '#/components/schemas/ScaleneTriangle'
+    EquilateralTriangle:
+      allOf:
+      - $ref: '#/components/schemas/ShapeInterface'
+      - $ref: '#/components/schemas/TriangleInterface'
+    IsoscelesTriangle:
+      additionalProperties: false
+      allOf:
+      - $ref: '#/components/schemas/ShapeInterface'
+      - $ref: '#/components/schemas/TriangleInterface'
+    ScaleneTriangle:
+      allOf:
+      - $ref: '#/components/schemas/ShapeInterface'
+      - $ref: '#/components/schemas/TriangleInterface'
+    QuadrilateralInterface:
+      properties:
+        quadrilateralType:
+          type: string
+      required:
+      - quadrilateralType
+    Quadrilateral:
+      discriminator:
+        propertyName: quadrilateralType
+      oneOf:
+      - $ref: '#/components/schemas/SimpleQuadrilateral'
+      - $ref: '#/components/schemas/ComplexQuadrilateral'
+    SimpleQuadrilateral:
+      allOf:
+      - $ref: '#/components/schemas/ShapeInterface'
+      - $ref: '#/components/schemas/QuadrilateralInterface'
+    ComplexQuadrilateral:
+      allOf:
+      - $ref: '#/components/schemas/ShapeInterface'
+      - $ref: '#/components/schemas/QuadrilateralInterface'
+    GrandparentAnimal:
+      discriminator:
+        propertyName: pet_type
+      properties:
+        pet_type:
+          type: string
+      required:
+      - pet_type
+      type: object
+    ParentPet:
+      allOf:
+      - $ref: '#/components/schemas/GrandparentAnimal'
+      type: object
+    ChildCat:
+      allOf:
+      - $ref: '#/components/schemas/ParentPet'
+      - properties:
+          name:
+            type: string
+          pet_type:
+            default: ChildCat
+            enum:
+            - ChildCat
+            type: string
+            x-enum-as-string: true
+        type: object
+    ArrayOfEnums:
+      items:
+        $ref: '#/components/schemas/OuterEnum'
+      type: array
+    DateTimeTest:
+      default: 2010-01-01T10:10:10.000111+01:00
+      example: 2010-01-01T10:10:10.000111+01:00
+      format: date-time
+      type: string
+    DeprecatedObject:
+      deprecated: true
+      properties:
+        name:
+          type: string
+      type: object
+    ObjectWithDeprecatedFields:
+      properties:
+        uuid:
+          type: string
+        id:
+          deprecated: true
+          type: number
+        deprecatedRef:
+          $ref: '#/components/schemas/DeprecatedObject'
+        bars:
+          deprecated: true
+          items:
+            $ref: '#/components/schemas/Bar'
+          type: array
+      type: object
+    PolymorphicProperty:
+      oneOf:
+      - type: boolean
+      - type: string
+      - type: object
+      - items:
+          $ref: '#/components/schemas/StringArrayItem'
+        type: array
+    StringArrayItem:
+      format: string
+      type: string
+    Activity:
+      description: test map of maps
+      properties:
+        activity_outputs:
+          additionalProperties:
+            $ref: '#/components/schemas/ActivityOutputRepresentation'
+          type: object
+      type: object
+    ActivityOutputRepresentation:
+      items:
+        $ref: '#/components/schemas/ActivityOutputElementRepresentation'
+      type: array
+    ActivityOutputElementRepresentation:
+      properties:
+        prop1:
+          type: string
+        prop2:
+          type: object
+      type: object
+    NullableGuidClass:
+      properties:
+        uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
+          format: uuid
+          nullable: true
+          type: string
+      type: object
+    DateOnlyClass:
+      properties:
+        dateOnlyProperty:
+          example: 2017-07-21
+          format: date
+          type: string
+      type: object
+    TestCollectionEndingWithWordListObject:
+      properties:
+        TestCollectionEndingWithWordList:
+          items:
+            $ref: '#/components/schemas/TestCollectionEndingWithWordList'
+          type: array
+      type: object
+    TestCollectionEndingWithWordList:
+      properties:
+        value:
+          type: string
+      type: object
+    LiteralStringClass:
+      properties:
+        escapedLiteralString:
+          default: C:\\Users\\username
+          type: string
+        unescapedLiteralString:
+          default: C:\Users\username
+          type: string
+      type: object
+    OneOfString:
+      oneOf:
+      - pattern: ^a
+        type: string
+      - pattern: ^b
+        type: string
+    ZeroBasedEnum:
+      enum:
+      - unknown
+      - notUnknown
+      type: string
+    ZeroBasedEnumClass:
+      properties:
+        ZeroBasedEnum:
+          enum:
+          - unknown
+          - notUnknown
+          type: string
+      type: object
+    Custom-Variableobject-Response:
+      additionalProperties: true
+      description: A Variable object without predefined property names
+      type: object
+    Field-pkiNotificationtestID:
+      type: integer
+    notificationtest-getElements-v1-Response-mPayload:
+      example:
+        a_objVariableobject:
+        - null
+        - null
+        pkiNotificationtestID: 0
+      properties:
+        pkiNotificationtestID:
+          type: integer
+        a_objVariableobject:
+          items:
+            $ref: '#/components/schemas/Custom-Variableobject-Response'
+          type: array
+      required:
+      - a_objVariableobject
+      - pkiNotificationtestID
+      type: object
+    _foo_get_default_response:
+      example:
+        string:
+          bar: bar
+      properties:
+        string:
+          $ref: '#/components/schemas/Foo'
+      type: object
+    updatePetWithForm_request:
+      properties:
+        name:
+          description: Updated name of the pet
+          type: string
+        status:
+          description: Updated status of the pet
+          type: string
+      type: object
+    uploadFile_request:
+      properties:
+        additionalMetadata:
+          description: Additional data to pass to server
+          type: string
+        file:
+          description: file to upload
+          format: binary
+          type: string
+      type: object
+    testEnumParameters_request:
+      properties:
+        enum_form_string_array:
+          description: Form parameter enum test (string array)
+          items:
+            default: $
+            enum:
+            - '>'
+            - $
+            type: string
+          type: array
+        enum_form_string:
+          default: -efg
+          description: Form parameter enum test (string)
+          enum:
+          - _abc
+          - -efg
+          - (xyz)
+          type: string
+      type: object
+    testEndpointParameters_request:
+      properties:
+        integer:
+          description: None
+          maximum: 100
+          minimum: 10
+          type: integer
+        int32:
+          description: None
+          format: int32
+          maximum: 200
+          minimum: 20
+          type: integer
+        int64:
+          description: None
+          format: int64
+          type: integer
+        number:
+          description: None
+          maximum: 543.2
+          minimum: 32.1
+          type: number
+        float:
+          description: None
+          format: float
+          maximum: 987.6
+          type: number
+        double:
+          description: None
+          format: double
+          maximum: 123.4
+          minimum: 67.8
+          type: number
+        string:
+          description: None
+          pattern: "/[a-z]/i"
+          type: string
+        pattern_without_delimiter:
+          description: None
+          pattern: "^[A-Z].*"
+          type: string
+        byte:
+          description: None
+          format: byte
+          type: string
+        binary:
+          description: None
+          format: binary
+          type: string
+        date:
+          description: None
+          format: date
+          type: string
+        dateTime:
+          default: 2010-02-01T10:20:10.11111+01:00
+          description: None
+          example: 2020-02-02T20:20:20.22222Z
+          format: date-time
+          type: string
+        password:
+          description: None
+          format: password
+          maxLength: 64
+          minLength: 10
+          type: string
+        callback:
+          description: None
+          type: string
+      required:
+      - byte
+      - double
+      - number
+      - pattern_without_delimiter
+      type: object
+    testJsonFormData_request:
+      properties:
+        param:
+          description: field1
+          type: string
+        param2:
+          description: field2
+          type: string
+      required:
+      - param
+      - param2
+      type: object
+    testInlineFreeformAdditionalProperties_request:
+      additionalProperties: true
+      properties:
+        someProperty:
+          type: string
+      type: object
+    uploadFileWithRequiredFile_request:
+      properties:
+        additionalMetadata:
+          description: Additional data to pass to server
+          type: string
+        requiredFile:
+          description: file to upload
+          format: binary
+          type: string
+      required:
+      - requiredFile
+      type: object
+    getCountry_request:
+      allOf:
+      - properties:
+          country:
+            type: string
+        required:
+        - country
+        type: object
+    RolesReportsHash_role:
+      properties:
+        name:
+          type: string
+      type: object
+  securitySchemes:
+    petstore_auth:
+      flows:
+        implicit:
+          authorizationUrl: http://petstore.swagger.io/api/oauth/dialog
+          scopes:
+            write:pets: modify pets in your account
+            read:pets: read your pets
+      type: oauth2
+    api_key:
+      in: header
+      name: api_key
+      type: apiKey
+    api_key_query:
+      in: query
+      name: api_key_query
+      type: apiKey
+    http_basic_test:
+      scheme: basic
+      type: http
+    bearer_test:
+      bearerFormat: JWT
+      scheme: bearer
+      type: http
+    http_signature_test:
+      scheme: signature
+      type: http
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/appveyor.yml b/samples/client/petstore/csharp/OpenAPIClient-net8.0/appveyor.yml
new file mode 100644
index 00000000000..f76f63cee50
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/appveyor.yml
@@ -0,0 +1,9 @@
+# auto-generated by OpenAPI Generator (https://github.com/OpenAPITools/openapi-generator)
+#
+image: Visual Studio 2019
+clone_depth: 1
+build_script:
+- dotnet build -c Release
+- dotnet test -c Release
+after_build:
+- dotnet pack .\src\Org.OpenAPITools\Org.OpenAPITools.csproj -o ../../output -c Release --no-build
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Activity.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Activity.md
new file mode 100644
index 00000000000..27a4e457199
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Activity.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Activity
+test map of maps
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ActivityOutputs** | **Dictionary&lt;string, List&lt;ActivityOutputElementRepresentation&gt;&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ActivityOutputElementRepresentation.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ActivityOutputElementRepresentation.md
new file mode 100644
index 00000000000..21f226b3952
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ActivityOutputElementRepresentation.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.ActivityOutputElementRepresentation
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Prop1** | **string** |  | [optional] 
+**Prop2** | **Object** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AdditionalPropertiesClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AdditionalPropertiesClass.md
new file mode 100644
index 00000000000..c40cd0f8acc
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AdditionalPropertiesClass.md
@@ -0,0 +1,17 @@
+# Org.OpenAPITools.Model.AdditionalPropertiesClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**MapProperty** | **Dictionary&lt;string, string&gt;** |  | [optional] 
+**MapOfMapProperty** | **Dictionary&lt;string, Dictionary&lt;string, string&gt;&gt;** |  | [optional] 
+**Anytype1** | **Object** |  | [optional] 
+**MapWithUndeclaredPropertiesAnytype1** | **Object** |  | [optional] 
+**MapWithUndeclaredPropertiesAnytype2** | **Object** |  | [optional] 
+**MapWithUndeclaredPropertiesAnytype3** | **Dictionary&lt;string, Object&gt;** |  | [optional] 
+**EmptyMap** | **Object** | an object with no declared properties and no undeclared properties, hence it&#39;s an empty map. | [optional] 
+**MapWithUndeclaredPropertiesString** | **Dictionary&lt;string, string&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Animal.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Animal.md
new file mode 100644
index 00000000000..f14b7a3ae4e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Animal.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Animal
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ClassName** | **string** |  | 
+**Color** | **string** |  | [optional] [default to "red"]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AnotherFakeApi.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AnotherFakeApi.md
new file mode 100644
index 00000000000..01da3a93e62
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AnotherFakeApi.md
@@ -0,0 +1,99 @@
+# Org.OpenAPITools.Api.AnotherFakeApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|--------|--------------|-------------|
+| [**Call123TestSpecialTags**](AnotherFakeApi.md#call123testspecialtags) | **PATCH** /another-fake/dummy | To test special tags |
+
+<a id="call123testspecialtags"></a>
+# **Call123TestSpecialTags**
+> ModelClient Call123TestSpecialTags (ModelClient modelClient)
+
+To test special tags
+
+To test special tags and operation ID starting with number
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class Call123TestSpecialTagsExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new AnotherFakeApi(config);
+            var modelClient = new ModelClient(); // ModelClient | client model
+
+            try
+            {
+                // To test special tags
+                ModelClient result = apiInstance.Call123TestSpecialTags(modelClient);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling AnotherFakeApi.Call123TestSpecialTags: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the Call123TestSpecialTagsWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // To test special tags
+    ApiResponse<ModelClient> response = apiInstance.Call123TestSpecialTagsWithHttpInfo(modelClient);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling AnotherFakeApi.Call123TestSpecialTagsWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **modelClient** | [**ModelClient**](ModelClient.md) | client model |  |
+
+### Return type
+
+[**ModelClient**](ModelClient.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ApiResponse.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ApiResponse.md
new file mode 100644
index 00000000000..bb723d2baa1
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ApiResponse.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.ApiResponse
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Code** | **int** |  | [optional] 
+**Type** | **string** |  | [optional] 
+**Message** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Apple.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Apple.md
new file mode 100644
index 00000000000..6261194e480
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Apple.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.Apple
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Cultivar** | **string** |  | [optional] 
+**Origin** | **string** |  | [optional] 
+**ColorCode** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AppleReq.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AppleReq.md
new file mode 100644
index 00000000000..005b8f8058a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/AppleReq.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.AppleReq
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Cultivar** | **string** |  | 
+**Mealy** | **bool** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayOfArrayOfNumberOnly.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayOfArrayOfNumberOnly.md
new file mode 100644
index 00000000000..4764c0ff80c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayOfArrayOfNumberOnly.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.ArrayOfArrayOfNumberOnly
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ArrayArrayNumber** | **List&lt;List&lt;decimal&gt;&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayOfNumberOnly.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayOfNumberOnly.md
new file mode 100644
index 00000000000..d93717103b8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayOfNumberOnly.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.ArrayOfNumberOnly
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ArrayNumber** | **List&lt;decimal&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayTest.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayTest.md
new file mode 100644
index 00000000000..d74d11bae77
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ArrayTest.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.ArrayTest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ArrayOfString** | **List&lt;string&gt;** |  | [optional] 
+**ArrayArrayOfInteger** | **List&lt;List&lt;long&gt;&gt;** |  | [optional] 
+**ArrayArrayOfModel** | **List&lt;List&lt;ReadOnlyFirst&gt;&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Banana.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Banana.md
new file mode 100644
index 00000000000..226952d1cec
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Banana.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.Banana
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**LengthCm** | **decimal** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/BananaReq.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/BananaReq.md
new file mode 100644
index 00000000000..f99aab99e38
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/BananaReq.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.BananaReq
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**LengthCm** | **decimal** |  | 
+**Sweet** | **bool** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/BasquePig.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/BasquePig.md
new file mode 100644
index 00000000000..681be0bc7e3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/BasquePig.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.BasquePig
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ClassName** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Capitalization.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Capitalization.md
new file mode 100644
index 00000000000..1b1352d918f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Capitalization.md
@@ -0,0 +1,15 @@
+# Org.OpenAPITools.Model.Capitalization
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**SmallCamel** | **string** |  | [optional] 
+**CapitalCamel** | **string** |  | [optional] 
+**SmallSnake** | **string** |  | [optional] 
+**CapitalSnake** | **string** |  | [optional] 
+**SCAETHFlowPoints** | **string** |  | [optional] 
+**ATT_NAME** | **string** | Name of the pet  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Cat.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Cat.md
new file mode 100644
index 00000000000..aa1ac17604e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Cat.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.Cat
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ClassName** | **string** |  | 
+**Color** | **string** |  | [optional] [default to "red"]
+**Declawed** | **bool** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Category.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Category.md
new file mode 100644
index 00000000000..032a1faeb3f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Category.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Category
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Id** | **long** |  | [optional] 
+**Name** | **string** |  | [default to "default-name"]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ChildCat.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ChildCat.md
new file mode 100644
index 00000000000..072ad05b36d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ChildCat.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.ChildCat
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Name** | **string** |  | [optional] 
+**PetType** | **string** |  | [optional] [default to PetTypeEnum.ChildCat]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ClassModel.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ClassModel.md
new file mode 100644
index 00000000000..c90a44a6f84
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ClassModel.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.ClassModel
+Model for testing model with \"_class\" property
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**VarClass** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ComplexQuadrilateral.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ComplexQuadrilateral.md
new file mode 100644
index 00000000000..65a6097ce3f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ComplexQuadrilateral.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.ComplexQuadrilateral
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**QuadrilateralType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DanishPig.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DanishPig.md
new file mode 100644
index 00000000000..d9cf6527a3f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DanishPig.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.DanishPig
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ClassName** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DateOnlyClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DateOnlyClass.md
new file mode 100644
index 00000000000..d0912d2ac41
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DateOnlyClass.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.DateOnlyClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**DateOnlyProperty** | **DateTime** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DefaultApi.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DefaultApi.md
new file mode 100644
index 00000000000..d9d4abc6ebb
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DefaultApi.md
@@ -0,0 +1,429 @@
+# Org.OpenAPITools.Api.DefaultApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|--------|--------------|-------------|
+| [**FooGet**](DefaultApi.md#fooget) | **GET** /foo |  |
+| [**GetCountry**](DefaultApi.md#getcountry) | **POST** /country |  |
+| [**Hello**](DefaultApi.md#hello) | **GET** /hello | Hello |
+| [**RolesReportGet**](DefaultApi.md#rolesreportget) | **GET** /roles/report |  |
+| [**Test**](DefaultApi.md#test) | **GET** /test | Retrieve an existing Notificationtest&#39;s Elements |
+
+<a id="fooget"></a>
+# **FooGet**
+> FooGetDefaultResponse FooGet ()
+
+
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FooGetExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new DefaultApi(config);
+
+            try
+            {
+                FooGetDefaultResponse result = apiInstance.FooGet();
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling DefaultApi.FooGet: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FooGetWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    ApiResponse<FooGetDefaultResponse> response = apiInstance.FooGetWithHttpInfo();
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling DefaultApi.FooGetWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+[**FooGetDefaultResponse**](FooGetDefaultResponse.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | response |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="getcountry"></a>
+# **GetCountry**
+> void GetCountry (string country)
+
+
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class GetCountryExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new DefaultApi(config);
+            var country = "country_example";  // string | 
+
+            try
+            {
+                apiInstance.GetCountry(country);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling DefaultApi.GetCountry: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the GetCountryWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    apiInstance.GetCountryWithHttpInfo(country);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling DefaultApi.GetCountryWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **country** | **string** |  |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/x-www-form-urlencoded
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | OK |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="hello"></a>
+# **Hello**
+> List&lt;Guid&gt; Hello ()
+
+Hello
+
+Hello
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class HelloExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new DefaultApi(config);
+
+            try
+            {
+                // Hello
+                List<Guid> result = apiInstance.Hello();
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling DefaultApi.Hello: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the HelloWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Hello
+    ApiResponse<List<Guid>> response = apiInstance.HelloWithHttpInfo();
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling DefaultApi.HelloWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+**List<Guid>**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | UUIDs |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="rolesreportget"></a>
+# **RolesReportGet**
+> List&lt;List&lt;RolesReportsHash&gt;&gt; RolesReportGet ()
+
+
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class RolesReportGetExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new DefaultApi(config);
+
+            try
+            {
+                List<List<RolesReportsHash>> result = apiInstance.RolesReportGet();
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling DefaultApi.RolesReportGet: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the RolesReportGetWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    ApiResponse<List<List<RolesReportsHash>>> response = apiInstance.RolesReportGetWithHttpInfo();
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling DefaultApi.RolesReportGetWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+**List<List<RolesReportsHash>>**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | returns report |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="test"></a>
+# **Test**
+> NotificationtestGetElementsV1ResponseMPayload Test ()
+
+Retrieve an existing Notificationtest's Elements
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new DefaultApi(config);
+
+            try
+            {
+                // Retrieve an existing Notificationtest's Elements
+                NotificationtestGetElementsV1ResponseMPayload result = apiInstance.Test();
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling DefaultApi.Test: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Retrieve an existing Notificationtest's Elements
+    ApiResponse<NotificationtestGetElementsV1ResponseMPayload> response = apiInstance.TestWithHttpInfo();
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling DefaultApi.TestWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+[**NotificationtestGetElementsV1ResponseMPayload**](NotificationtestGetElementsV1ResponseMPayload.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Successful response |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DeprecatedObject.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DeprecatedObject.md
new file mode 100644
index 00000000000..bb7824a3d64
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/DeprecatedObject.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.DeprecatedObject
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Name** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Dog.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Dog.md
new file mode 100644
index 00000000000..3aa00144e9a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Dog.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.Dog
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ClassName** | **string** |  | 
+**Color** | **string** |  | [optional] [default to "red"]
+**Breed** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Drawing.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Drawing.md
new file mode 100644
index 00000000000..6b7122940af
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Drawing.md
@@ -0,0 +1,13 @@
+# Org.OpenAPITools.Model.Drawing
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**MainShape** | [**Shape**](Shape.md) |  | [optional] 
+**ShapeOrNull** | [**ShapeOrNull**](ShapeOrNull.md) |  | [optional] 
+**NullableShape** | [**NullableShape**](NullableShape.md) |  | [optional] 
+**Shapes** | [**List&lt;Shape&gt;**](Shape.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumArrays.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumArrays.md
new file mode 100644
index 00000000000..62e34f03dbc
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumArrays.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.EnumArrays
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**JustSymbol** | **string** |  | [optional] 
+**ArrayEnum** | **List&lt;EnumArrays.ArrayEnumEnum&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumClass.md
new file mode 100644
index 00000000000..38f309437db
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumClass.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.EnumClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumTest.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumTest.md
new file mode 100644
index 00000000000..5ce3c4addd9
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EnumTest.md
@@ -0,0 +1,18 @@
+# Org.OpenAPITools.Model.EnumTest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**EnumString** | **string** |  | [optional] 
+**EnumStringRequired** | **string** |  | 
+**EnumInteger** | **int** |  | [optional] 
+**EnumIntegerOnly** | **int** |  | [optional] 
+**EnumNumber** | **double** |  | [optional] 
+**OuterEnum** | **OuterEnum** |  | [optional] 
+**OuterEnumInteger** | **OuterEnumInteger** |  | [optional] 
+**OuterEnumDefaultValue** | **OuterEnumDefaultValue** |  | [optional] 
+**OuterEnumIntegerDefaultValue** | **OuterEnumIntegerDefaultValue** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EquilateralTriangle.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EquilateralTriangle.md
new file mode 100644
index 00000000000..ab06d96ca30
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/EquilateralTriangle.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.EquilateralTriangle
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**TriangleType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FakeApi.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FakeApi.md
new file mode 100644
index 00000000000..70d7da71e1c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FakeApi.md
@@ -0,0 +1,1488 @@
+# Org.OpenAPITools.Api.FakeApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|--------|--------------|-------------|
+| [**FakeHealthGet**](FakeApi.md#fakehealthget) | **GET** /fake/health | Health check endpoint |
+| [**FakeOuterBooleanSerialize**](FakeApi.md#fakeouterbooleanserialize) | **POST** /fake/outer/boolean |  |
+| [**FakeOuterCompositeSerialize**](FakeApi.md#fakeoutercompositeserialize) | **POST** /fake/outer/composite |  |
+| [**FakeOuterNumberSerialize**](FakeApi.md#fakeouternumberserialize) | **POST** /fake/outer/number |  |
+| [**FakeOuterStringSerialize**](FakeApi.md#fakeouterstringserialize) | **POST** /fake/outer/string |  |
+| [**GetArrayOfEnums**](FakeApi.md#getarrayofenums) | **GET** /fake/array-of-enums | Array of Enums |
+| [**TestBodyWithFileSchema**](FakeApi.md#testbodywithfileschema) | **PUT** /fake/body-with-file-schema |  |
+| [**TestBodyWithQueryParams**](FakeApi.md#testbodywithqueryparams) | **PUT** /fake/body-with-query-params |  |
+| [**TestClientModel**](FakeApi.md#testclientmodel) | **PATCH** /fake | To test \&quot;client\&quot; model |
+| [**TestEndpointParameters**](FakeApi.md#testendpointparameters) | **POST** /fake | Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트  |
+| [**TestEnumParameters**](FakeApi.md#testenumparameters) | **GET** /fake | To test enum parameters |
+| [**TestGroupParameters**](FakeApi.md#testgroupparameters) | **DELETE** /fake | Fake endpoint to test group parameters (optional) |
+| [**TestInlineAdditionalProperties**](FakeApi.md#testinlineadditionalproperties) | **POST** /fake/inline-additionalProperties | test inline additionalProperties |
+| [**TestInlineFreeformAdditionalProperties**](FakeApi.md#testinlinefreeformadditionalproperties) | **POST** /fake/inline-freeform-additionalProperties | test inline free-form additionalProperties |
+| [**TestJsonFormData**](FakeApi.md#testjsonformdata) | **GET** /fake/jsonFormData | test json serialization of form data |
+| [**TestQueryParameterCollectionFormat**](FakeApi.md#testqueryparametercollectionformat) | **PUT** /fake/test-query-parameters |  |
+
+<a id="fakehealthget"></a>
+# **FakeHealthGet**
+> HealthCheckResult FakeHealthGet ()
+
+Health check endpoint
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FakeHealthGetExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+
+            try
+            {
+                // Health check endpoint
+                HealthCheckResult result = apiInstance.FakeHealthGet();
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.FakeHealthGet: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FakeHealthGetWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Health check endpoint
+    ApiResponse<HealthCheckResult> response = apiInstance.FakeHealthGetWithHttpInfo();
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.FakeHealthGetWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+[**HealthCheckResult**](HealthCheckResult.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | The instance started successfully |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="fakeouterbooleanserialize"></a>
+# **FakeOuterBooleanSerialize**
+> bool FakeOuterBooleanSerialize (bool? body = null)
+
+
+
+Test serialization of outer boolean types
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FakeOuterBooleanSerializeExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var body = true;  // bool? | Input boolean as post body (optional) 
+
+            try
+            {
+                bool result = apiInstance.FakeOuterBooleanSerialize(body);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.FakeOuterBooleanSerialize: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FakeOuterBooleanSerializeWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    ApiResponse<bool> response = apiInstance.FakeOuterBooleanSerializeWithHttpInfo(body);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.FakeOuterBooleanSerializeWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **body** | **bool?** | Input boolean as post body | [optional]  |
+
+### Return type
+
+**bool**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: */*
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output boolean |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="fakeoutercompositeserialize"></a>
+# **FakeOuterCompositeSerialize**
+> OuterComposite FakeOuterCompositeSerialize (OuterComposite? outerComposite = null)
+
+
+
+Test serialization of object with outer number type
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FakeOuterCompositeSerializeExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var outerComposite = new OuterComposite?(); // OuterComposite? | Input composite as post body (optional) 
+
+            try
+            {
+                OuterComposite result = apiInstance.FakeOuterCompositeSerialize(outerComposite);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.FakeOuterCompositeSerialize: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FakeOuterCompositeSerializeWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    ApiResponse<OuterComposite> response = apiInstance.FakeOuterCompositeSerializeWithHttpInfo(outerComposite);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.FakeOuterCompositeSerializeWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **outerComposite** | [**OuterComposite?**](OuterComposite?.md) | Input composite as post body | [optional]  |
+
+### Return type
+
+[**OuterComposite**](OuterComposite.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: */*
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output composite |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="fakeouternumberserialize"></a>
+# **FakeOuterNumberSerialize**
+> decimal FakeOuterNumberSerialize (decimal? body = null)
+
+
+
+Test serialization of outer number types
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FakeOuterNumberSerializeExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var body = 8.14D;  // decimal? | Input number as post body (optional) 
+
+            try
+            {
+                decimal result = apiInstance.FakeOuterNumberSerialize(body);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.FakeOuterNumberSerialize: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FakeOuterNumberSerializeWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    ApiResponse<decimal> response = apiInstance.FakeOuterNumberSerializeWithHttpInfo(body);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.FakeOuterNumberSerializeWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **body** | **decimal?** | Input number as post body | [optional]  |
+
+### Return type
+
+**decimal**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: */*
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output number |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="fakeouterstringserialize"></a>
+# **FakeOuterStringSerialize**
+> string FakeOuterStringSerialize (Guid requiredStringUuid, string? body = null)
+
+
+
+Test serialization of outer string types
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FakeOuterStringSerializeExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var requiredStringUuid = "requiredStringUuid_example";  // Guid | Required UUID String
+            var body = "body_example";  // string? | Input string as post body (optional) 
+
+            try
+            {
+                string result = apiInstance.FakeOuterStringSerialize(requiredStringUuid, body);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.FakeOuterStringSerialize: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FakeOuterStringSerializeWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    ApiResponse<string> response = apiInstance.FakeOuterStringSerializeWithHttpInfo(requiredStringUuid, body);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.FakeOuterStringSerializeWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **requiredStringUuid** | **Guid** | Required UUID String |  |
+| **body** | **string?** | Input string as post body | [optional]  |
+
+### Return type
+
+**string**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: */*
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output string |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="getarrayofenums"></a>
+# **GetArrayOfEnums**
+> List&lt;OuterEnum&gt; GetArrayOfEnums ()
+
+Array of Enums
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class GetArrayOfEnumsExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+
+            try
+            {
+                // Array of Enums
+                List<OuterEnum> result = apiInstance.GetArrayOfEnums();
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.GetArrayOfEnums: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the GetArrayOfEnumsWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Array of Enums
+    ApiResponse<List<OuterEnum>> response = apiInstance.GetArrayOfEnumsWithHttpInfo();
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.GetArrayOfEnumsWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+[**List&lt;OuterEnum&gt;**](OuterEnum.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Got named array of enums |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testbodywithfileschema"></a>
+# **TestBodyWithFileSchema**
+> void TestBodyWithFileSchema (FileSchemaTestClass fileSchemaTestClass)
+
+
+
+For this test, the body for this request much reference a schema named `File`.
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestBodyWithFileSchemaExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var fileSchemaTestClass = new FileSchemaTestClass(); // FileSchemaTestClass | 
+
+            try
+            {
+                apiInstance.TestBodyWithFileSchema(fileSchemaTestClass);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestBodyWithFileSchema: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestBodyWithFileSchemaWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    apiInstance.TestBodyWithFileSchemaWithHttpInfo(fileSchemaTestClass);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestBodyWithFileSchemaWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **fileSchemaTestClass** | [**FileSchemaTestClass**](FileSchemaTestClass.md) |  |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Success |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testbodywithqueryparams"></a>
+# **TestBodyWithQueryParams**
+> void TestBodyWithQueryParams (string query, User user)
+
+
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestBodyWithQueryParamsExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var query = "query_example";  // string | 
+            var user = new User(); // User | 
+
+            try
+            {
+                apiInstance.TestBodyWithQueryParams(query, user);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestBodyWithQueryParams: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestBodyWithQueryParamsWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    apiInstance.TestBodyWithQueryParamsWithHttpInfo(query, user);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestBodyWithQueryParamsWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **query** | **string** |  |  |
+| **user** | [**User**](User.md) |  |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Success |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testclientmodel"></a>
+# **TestClientModel**
+> ModelClient TestClientModel (ModelClient modelClient)
+
+To test \"client\" model
+
+To test \"client\" model
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestClientModelExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var modelClient = new ModelClient(); // ModelClient | client model
+
+            try
+            {
+                // To test \"client\" model
+                ModelClient result = apiInstance.TestClientModel(modelClient);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestClientModel: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestClientModelWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // To test \"client\" model
+    ApiResponse<ModelClient> response = apiInstance.TestClientModelWithHttpInfo(modelClient);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestClientModelWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **modelClient** | [**ModelClient**](ModelClient.md) | client model |  |
+
+### Return type
+
+[**ModelClient**](ModelClient.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testendpointparameters"></a>
+# **TestEndpointParameters**
+> void TestEndpointParameters (decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = null, int? int32 = null, long? int64 = null, float? varFloat = null, string? varString = null, System.IO.Stream? binary = null, DateTime? date = null, DateTime? dateTime = null, string? password = null, string? callback = null)
+
+Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+
+Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestEndpointParametersExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure HTTP basic authorization: http_basic_test
+            config.Username = "YOUR_USERNAME";
+            config.Password = "YOUR_PASSWORD";
+
+            var apiInstance = new FakeApi(config);
+            var number = 8.14D;  // decimal | None
+            var varDouble = 1.2D;  // double | None
+            var patternWithoutDelimiter = "patternWithoutDelimiter_example";  // string | None
+            var varByte = System.Text.Encoding.ASCII.GetBytes("BYTE_ARRAY_DATA_HERE");  // byte[] | None
+            var integer = 56;  // int? | None (optional) 
+            var int32 = 56;  // int? | None (optional) 
+            var int64 = 789L;  // long? | None (optional) 
+            var varFloat = 3.4F;  // float? | None (optional) 
+            var varString = "varString_example";  // string? | None (optional) 
+            var binary = new System.IO.MemoryStream(System.IO.File.ReadAllBytes("/path/to/file.txt"));  // System.IO.Stream? | None (optional) 
+            var date = DateTime.Parse("2013-10-20");  // DateTime? | None (optional) 
+            var dateTime = DateTime.Parse(""2010-02-01T10:20:10.111110+01:00"");  // DateTime? | None (optional)  (default to "2010-02-01T10:20:10.111110+01:00")
+            var password = "password_example";  // string? | None (optional) 
+            var callback = "callback_example";  // string? | None (optional) 
+
+            try
+            {
+                // Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+                apiInstance.TestEndpointParameters(number, varDouble, patternWithoutDelimiter, varByte, integer, int32, int64, varFloat, varString, binary, date, dateTime, password, callback);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestEndpointParameters: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestEndpointParametersWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+    apiInstance.TestEndpointParametersWithHttpInfo(number, varDouble, patternWithoutDelimiter, varByte, integer, int32, int64, varFloat, varString, binary, date, dateTime, password, callback);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestEndpointParametersWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **number** | **decimal** | None |  |
+| **varDouble** | **double** | None |  |
+| **patternWithoutDelimiter** | **string** | None |  |
+| **varByte** | **byte[]** | None |  |
+| **integer** | **int?** | None | [optional]  |
+| **int32** | **int?** | None | [optional]  |
+| **int64** | **long?** | None | [optional]  |
+| **varFloat** | **float?** | None | [optional]  |
+| **varString** | **string?** | None | [optional]  |
+| **binary** | **System.IO.Stream?****System.IO.Stream?** | None | [optional]  |
+| **date** | **DateTime?** | None | [optional]  |
+| **dateTime** | **DateTime?** | None | [optional] [default to &quot;2010-02-01T10:20:10.111110+01:00&quot;] |
+| **password** | **string?** | None | [optional]  |
+| **callback** | **string?** | None | [optional]  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+[http_basic_test](../README.md#http_basic_test)
+
+### HTTP request headers
+
+ - **Content-Type**: application/x-www-form-urlencoded
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid username supplied |  -  |
+| **404** | User not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testenumparameters"></a>
+# **TestEnumParameters**
+> void TestEnumParameters (List<string>? enumHeaderStringArray = null, string? enumHeaderString = null, List<string>? enumQueryStringArray = null, string? enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string>? enumFormStringArray = null, string? enumFormString = null)
+
+To test enum parameters
+
+To test enum parameters
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestEnumParametersExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var enumHeaderStringArray = new List<string>?(); // List<string>? | Header parameter enum test (string array) (optional) 
+            var enumHeaderString = "_abc";  // string? | Header parameter enum test (string) (optional)  (default to -efg)
+            var enumQueryStringArray = new List<string>?(); // List<string>? | Query parameter enum test (string array) (optional) 
+            var enumQueryString = "_abc";  // string? | Query parameter enum test (string) (optional)  (default to -efg)
+            var enumQueryInteger = 1;  // int? | Query parameter enum test (double) (optional) 
+            var enumQueryDouble = 1.1D;  // double? | Query parameter enum test (double) (optional) 
+            var enumFormStringArray = new List<string>?(); // List<string>? | Form parameter enum test (string array) (optional)  (default to $)
+            var enumFormString = "_abc";  // string? | Form parameter enum test (string) (optional)  (default to -efg)
+
+            try
+            {
+                // To test enum parameters
+                apiInstance.TestEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestEnumParameters: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestEnumParametersWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // To test enum parameters
+    apiInstance.TestEnumParametersWithHttpInfo(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestEnumParametersWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **enumHeaderStringArray** | [**List&lt;string&gt;?**](string.md) | Header parameter enum test (string array) | [optional]  |
+| **enumHeaderString** | **string?** | Header parameter enum test (string) | [optional] [default to -efg] |
+| **enumQueryStringArray** | [**List&lt;string&gt;?**](string.md) | Query parameter enum test (string array) | [optional]  |
+| **enumQueryString** | **string?** | Query parameter enum test (string) | [optional] [default to -efg] |
+| **enumQueryInteger** | **int?** | Query parameter enum test (double) | [optional]  |
+| **enumQueryDouble** | **double?** | Query parameter enum test (double) | [optional]  |
+| **enumFormStringArray** | [**List&lt;string&gt;?**](string.md) | Form parameter enum test (string array) | [optional] [default to $] |
+| **enumFormString** | **string?** | Form parameter enum test (string) | [optional] [default to -efg] |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/x-www-form-urlencoded
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid request |  -  |
+| **404** | Not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testgroupparameters"></a>
+# **TestGroupParameters**
+> void TestGroupParameters (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null)
+
+Fake endpoint to test group parameters (optional)
+
+Fake endpoint to test group parameters (optional)
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestGroupParametersExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure Bearer token for authorization: bearer_test
+            config.AccessToken = "YOUR_BEARER_TOKEN";
+
+            var apiInstance = new FakeApi(config);
+            var requiredStringGroup = 56;  // int | Required String in group parameters
+            var requiredBooleanGroup = true;  // bool | Required Boolean in group parameters
+            var requiredInt64Group = 789L;  // long | Required Integer in group parameters
+            var stringGroup = 56;  // int? | String in group parameters (optional) 
+            var booleanGroup = true;  // bool? | Boolean in group parameters (optional) 
+            var int64Group = 789L;  // long? | Integer in group parameters (optional) 
+
+            try
+            {
+                // Fake endpoint to test group parameters (optional)
+                apiInstance.TestGroupParameters(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestGroupParameters: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestGroupParametersWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Fake endpoint to test group parameters (optional)
+    apiInstance.TestGroupParametersWithHttpInfo(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestGroupParametersWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **requiredStringGroup** | **int** | Required String in group parameters |  |
+| **requiredBooleanGroup** | **bool** | Required Boolean in group parameters |  |
+| **requiredInt64Group** | **long** | Required Integer in group parameters |  |
+| **stringGroup** | **int?** | String in group parameters | [optional]  |
+| **booleanGroup** | **bool?** | Boolean in group parameters | [optional]  |
+| **int64Group** | **long?** | Integer in group parameters | [optional]  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+[bearer_test](../README.md#bearer_test)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Something wrong |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testinlineadditionalproperties"></a>
+# **TestInlineAdditionalProperties**
+> void TestInlineAdditionalProperties (Dictionary<string, string> requestBody)
+
+test inline additionalProperties
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestInlineAdditionalPropertiesExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var requestBody = new Dictionary<string, string>(); // Dictionary<string, string> | request body
+
+            try
+            {
+                // test inline additionalProperties
+                apiInstance.TestInlineAdditionalProperties(requestBody);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestInlineAdditionalProperties: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestInlineAdditionalPropertiesWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // test inline additionalProperties
+    apiInstance.TestInlineAdditionalPropertiesWithHttpInfo(requestBody);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestInlineAdditionalPropertiesWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **requestBody** | [**Dictionary&lt;string, string&gt;**](string.md) | request body |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testinlinefreeformadditionalproperties"></a>
+# **TestInlineFreeformAdditionalProperties**
+> void TestInlineFreeformAdditionalProperties (TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest)
+
+test inline free-form additionalProperties
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestInlineFreeformAdditionalPropertiesExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var testInlineFreeformAdditionalPropertiesRequest = new TestInlineFreeformAdditionalPropertiesRequest(); // TestInlineFreeformAdditionalPropertiesRequest | request body
+
+            try
+            {
+                // test inline free-form additionalProperties
+                apiInstance.TestInlineFreeformAdditionalProperties(testInlineFreeformAdditionalPropertiesRequest);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestInlineFreeformAdditionalProperties: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestInlineFreeformAdditionalPropertiesWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // test inline free-form additionalProperties
+    apiInstance.TestInlineFreeformAdditionalPropertiesWithHttpInfo(testInlineFreeformAdditionalPropertiesRequest);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestInlineFreeformAdditionalPropertiesWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **testInlineFreeformAdditionalPropertiesRequest** | [**TestInlineFreeformAdditionalPropertiesRequest**](TestInlineFreeformAdditionalPropertiesRequest.md) | request body |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testjsonformdata"></a>
+# **TestJsonFormData**
+> void TestJsonFormData (string param, string param2)
+
+test json serialization of form data
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestJsonFormDataExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var param = "param_example";  // string | field1
+            var param2 = "param2_example";  // string | field2
+
+            try
+            {
+                // test json serialization of form data
+                apiInstance.TestJsonFormData(param, param2);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestJsonFormData: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestJsonFormDataWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // test json serialization of form data
+    apiInstance.TestJsonFormDataWithHttpInfo(param, param2);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestJsonFormDataWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **param** | **string** | field1 |  |
+| **param2** | **string** | field2 |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/x-www-form-urlencoded
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="testqueryparametercollectionformat"></a>
+# **TestQueryParameterCollectionFormat**
+> void TestQueryParameterCollectionFormat (List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = null, string? notRequiredNullable = null)
+
+
+
+To test the collection format in query parameters
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestQueryParameterCollectionFormatExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(config);
+            var pipe = new List<string>(); // List<string> | 
+            var ioutil = new List<string>(); // List<string> | 
+            var http = new List<string>(); // List<string> | 
+            var url = new List<string>(); // List<string> | 
+            var context = new List<string>(); // List<string> | 
+            var requiredNotNullable = "requiredNotNullable_example";  // string | 
+            var requiredNullable = "requiredNullable_example";  // string | 
+            var notRequiredNotNullable = "notRequiredNotNullable_example";  // string? |  (optional) 
+            var notRequiredNullable = "notRequiredNullable_example";  // string? |  (optional) 
+
+            try
+            {
+                apiInstance.TestQueryParameterCollectionFormat(pipe, ioutil, http, url, context, requiredNotNullable, requiredNullable, notRequiredNotNullable, notRequiredNullable);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeApi.TestQueryParameterCollectionFormat: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestQueryParameterCollectionFormatWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    apiInstance.TestQueryParameterCollectionFormatWithHttpInfo(pipe, ioutil, http, url, context, requiredNotNullable, requiredNullable, notRequiredNotNullable, notRequiredNullable);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeApi.TestQueryParameterCollectionFormatWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **pipe** | [**List&lt;string&gt;**](string.md) |  |  |
+| **ioutil** | [**List&lt;string&gt;**](string.md) |  |  |
+| **http** | [**List&lt;string&gt;**](string.md) |  |  |
+| **url** | [**List&lt;string&gt;**](string.md) |  |  |
+| **context** | [**List&lt;string&gt;**](string.md) |  |  |
+| **requiredNotNullable** | **string** |  |  |
+| **requiredNullable** | **string** |  |  |
+| **notRequiredNotNullable** | **string?** |  | [optional]  |
+| **notRequiredNullable** | **string?** |  | [optional]  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Success |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FakeClassnameTags123Api.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FakeClassnameTags123Api.md
new file mode 100644
index 00000000000..17c4f35d8a3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FakeClassnameTags123Api.md
@@ -0,0 +1,104 @@
+# Org.OpenAPITools.Api.FakeClassnameTags123Api
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|--------|--------------|-------------|
+| [**TestClassname**](FakeClassnameTags123Api.md#testclassname) | **PATCH** /fake_classname_test | To test class name in snake case |
+
+<a id="testclassname"></a>
+# **TestClassname**
+> ModelClient TestClassname (ModelClient modelClient)
+
+To test class name in snake case
+
+To test class name in snake case
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class TestClassnameExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure API key authorization: api_key_query
+            config.AddApiKey("api_key_query", "YOUR_API_KEY");
+            // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
+            // config.AddApiKeyPrefix("api_key_query", "Bearer");
+
+            var apiInstance = new FakeClassnameTags123Api(config);
+            var modelClient = new ModelClient(); // ModelClient | client model
+
+            try
+            {
+                // To test class name in snake case
+                ModelClient result = apiInstance.TestClassname(modelClient);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling FakeClassnameTags123Api.TestClassname: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the TestClassnameWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // To test class name in snake case
+    ApiResponse<ModelClient> response = apiInstance.TestClassnameWithHttpInfo(modelClient);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling FakeClassnameTags123Api.TestClassnameWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **modelClient** | [**ModelClient**](ModelClient.md) | client model |  |
+
+### Return type
+
+[**ModelClient**](ModelClient.md)
+
+### Authorization
+
+[api_key_query](../README.md#api_key_query)
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/File.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/File.md
new file mode 100644
index 00000000000..28959feda08
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/File.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.File
+Must be named `File` for test.
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**SourceURI** | **string** | Test capitalization | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FileSchemaTestClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FileSchemaTestClass.md
new file mode 100644
index 00000000000..0ce4be56cc7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FileSchemaTestClass.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.FileSchemaTestClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**File** | [**File**](File.md) |  | [optional] 
+**Files** | [**List&lt;File&gt;**](File.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Foo.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Foo.md
new file mode 100644
index 00000000000..92cf4572321
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Foo.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.Foo
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Bar** | **string** |  | [optional] [default to "bar"]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FooGetDefaultResponse.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FooGetDefaultResponse.md
new file mode 100644
index 00000000000..9ebee827949
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FooGetDefaultResponse.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.FooGetDefaultResponse
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**VarString** | [**Foo**](Foo.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FormatTest.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FormatTest.md
new file mode 100644
index 00000000000..2d28c89fa30
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FormatTest.md
@@ -0,0 +1,28 @@
+# Org.OpenAPITools.Model.FormatTest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Integer** | **int** |  | [optional] 
+**Int32** | **int** |  | [optional] 
+**UnsignedInteger** | **uint** |  | [optional] 
+**Int64** | **long** |  | [optional] 
+**UnsignedLong** | **ulong** |  | [optional] 
+**Number** | **decimal** |  | 
+**VarFloat** | **float** |  | [optional] 
+**VarDouble** | **double** |  | [optional] 
+**VarDecimal** | **decimal** |  | [optional] 
+**VarString** | **string** |  | [optional] 
+**VarByte** | **byte[]** |  | 
+**Binary** | **System.IO.Stream** |  | [optional] 
+**Date** | **DateTime** |  | 
+**DateTime** | **DateTime** |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
+**Password** | **string** |  | 
+**PatternWithDigits** | **string** | A string that is a 10 digit number. Can have leading zeros. | [optional] 
+**PatternWithDigitsAndDelimiter** | **string** | A string starting with &#39;image_&#39; (case insensitive) and one to three digits following i.e. Image_01. | [optional] 
+**PatternWithBackslash** | **string** | None | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Fruit.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Fruit.md
new file mode 100644
index 00000000000..40df92d7c9b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Fruit.md
@@ -0,0 +1,14 @@
+# Org.OpenAPITools.Model.Fruit
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Color** | **string** |  | [optional] 
+**Cultivar** | **string** |  | [optional] 
+**Origin** | **string** |  | [optional] 
+**ColorCode** | **string** |  | [optional] 
+**LengthCm** | **decimal** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FruitReq.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FruitReq.md
new file mode 100644
index 00000000000..5db6b0e2d1d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/FruitReq.md
@@ -0,0 +1,13 @@
+# Org.OpenAPITools.Model.FruitReq
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Cultivar** | **string** |  | 
+**Mealy** | **bool** |  | [optional] 
+**LengthCm** | **decimal** |  | 
+**Sweet** | **bool** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/GmFruit.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/GmFruit.md
new file mode 100644
index 00000000000..da7b3a6ccf9
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/GmFruit.md
@@ -0,0 +1,14 @@
+# Org.OpenAPITools.Model.GmFruit
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Color** | **string** |  | [optional] 
+**Cultivar** | **string** |  | [optional] 
+**Origin** | **string** |  | [optional] 
+**ColorCode** | **string** |  | [optional] 
+**LengthCm** | **decimal** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/GrandparentAnimal.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/GrandparentAnimal.md
new file mode 100644
index 00000000000..461ebfe34c2
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/GrandparentAnimal.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.GrandparentAnimal
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**PetType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/HasOnlyReadOnly.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/HasOnlyReadOnly.md
new file mode 100644
index 00000000000..64549c18b0a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/HasOnlyReadOnly.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.HasOnlyReadOnly
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Bar** | **string** |  | [optional] [readonly] 
+**Foo** | **string** |  | [optional] [readonly] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/HealthCheckResult.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/HealthCheckResult.md
new file mode 100644
index 00000000000..f7d1a7eb688
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/HealthCheckResult.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.HealthCheckResult
+Just a string to inform instance is up and running. Make it nullable in hope to get it as pointer in generated model.
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**NullableMessage** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/IsoscelesTriangle.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/IsoscelesTriangle.md
new file mode 100644
index 00000000000..f0eef14fabb
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/IsoscelesTriangle.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.IsoscelesTriangle
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**TriangleType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/List.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/List.md
new file mode 100644
index 00000000000..c00ef31e6e2
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/List.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.List
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Var123List** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/LiteralStringClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/LiteralStringClass.md
new file mode 100644
index 00000000000..6d3e0d50c1f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/LiteralStringClass.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.LiteralStringClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**EscapedLiteralString** | **string** |  | [optional] [default to "C:\\Users\\username"]
+**UnescapedLiteralString** | **string** |  | [optional] [default to "C:\Users\username"]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Mammal.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Mammal.md
new file mode 100644
index 00000000000..aab8f4db9c7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Mammal.md
@@ -0,0 +1,13 @@
+# Org.OpenAPITools.Model.Mammal
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**HasBaleen** | **bool** |  | [optional] 
+**HasTeeth** | **bool** |  | [optional] 
+**ClassName** | **string** |  | 
+**Type** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/MapTest.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/MapTest.md
new file mode 100644
index 00000000000..516f9d4fd37
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/MapTest.md
@@ -0,0 +1,13 @@
+# Org.OpenAPITools.Model.MapTest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**MapMapOfString** | **Dictionary&lt;string, Dictionary&lt;string, string&gt;&gt;** |  | [optional] 
+**MapOfEnumString** | **Dictionary&lt;string, MapTest.InnerEnum&gt;** |  | [optional] 
+**DirectMap** | **Dictionary&lt;string, bool&gt;** |  | [optional] 
+**IndirectMap** | **Dictionary&lt;string, bool&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/MixedPropertiesAndAdditionalPropertiesClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/MixedPropertiesAndAdditionalPropertiesClass.md
new file mode 100644
index 00000000000..050210a3e37
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/MixedPropertiesAndAdditionalPropertiesClass.md
@@ -0,0 +1,13 @@
+# Org.OpenAPITools.Model.MixedPropertiesAndAdditionalPropertiesClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**UuidWithPattern** | **Guid** |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
+**DateTime** | **DateTime** |  | [optional] 
+**Map** | [**Dictionary&lt;string, Animal&gt;**](Animal.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Model200Response.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Model200Response.md
new file mode 100644
index 00000000000..4b6338af424
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Model200Response.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.Model200Response
+Model for testing model name starting with number
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Name** | **int** |  | [optional] 
+**VarClass** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ModelClient.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ModelClient.md
new file mode 100644
index 00000000000..1d8afe3e1a7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ModelClient.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.ModelClient
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**VarClient** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Name.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Name.md
new file mode 100644
index 00000000000..3e19db154a8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Name.md
@@ -0,0 +1,14 @@
+# Org.OpenAPITools.Model.Name
+Model for testing model name same as property name
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**VarName** | **int** |  | 
+**SnakeCase** | **int** |  | [optional] [readonly] 
+**Property** | **string** |  | [optional] 
+**Var123Number** | **int** |  | [optional] [readonly] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NotificationtestGetElementsV1ResponseMPayload.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NotificationtestGetElementsV1ResponseMPayload.md
new file mode 100644
index 00000000000..e6e3d9fdb0b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NotificationtestGetElementsV1ResponseMPayload.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.NotificationtestGetElementsV1ResponseMPayload
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**PkiNotificationtestID** | **int** |  | 
+**AObjVariableobject** | **List&lt;Dictionary&lt;string, Object&gt;&gt;** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableClass.md
new file mode 100644
index 00000000000..7bab4fa20ee
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableClass.md
@@ -0,0 +1,21 @@
+# Org.OpenAPITools.Model.NullableClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**IntegerProp** | **int?** |  | [optional] 
+**NumberProp** | **decimal?** |  | [optional] 
+**BooleanProp** | **bool?** |  | [optional] 
+**StringProp** | **string** |  | [optional] 
+**DateProp** | **DateTime?** |  | [optional] 
+**DatetimeProp** | **DateTime?** |  | [optional] 
+**ArrayNullableProp** | **List&lt;Object&gt;** |  | [optional] 
+**ArrayAndItemsNullableProp** | **List&lt;Object&gt;** |  | [optional] 
+**ArrayItemsNullable** | **List&lt;Object&gt;** |  | [optional] 
+**ObjectNullableProp** | **Dictionary&lt;string, Object&gt;** |  | [optional] 
+**ObjectAndItemsNullableProp** | **Dictionary&lt;string, Object&gt;** |  | [optional] 
+**ObjectItemsNullable** | **Dictionary&lt;string, Object&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableGuidClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableGuidClass.md
new file mode 100644
index 00000000000..5ada17b4db8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableGuidClass.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.NullableGuidClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Uuid** | **Guid?** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableShape.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableShape.md
new file mode 100644
index 00000000000..f8fb004da80
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NullableShape.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.NullableShape
+The value may be a shape or the 'null' value. The 'nullable' attribute was introduced in OAS schema >= 3.0 and has been deprecated in OAS schema >= 3.1.
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**QuadrilateralType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NumberOnly.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NumberOnly.md
new file mode 100644
index 00000000000..14a7c0f1071
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/NumberOnly.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.NumberOnly
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**JustNumber** | **decimal** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ObjectWithDeprecatedFields.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ObjectWithDeprecatedFields.md
new file mode 100644
index 00000000000..7a335d446f4
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ObjectWithDeprecatedFields.md
@@ -0,0 +1,13 @@
+# Org.OpenAPITools.Model.ObjectWithDeprecatedFields
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Uuid** | **string** |  | [optional] 
+**Id** | **decimal** |  | [optional] 
+**DeprecatedRef** | [**DeprecatedObject**](DeprecatedObject.md) |  | [optional] 
+**Bars** | **List&lt;string&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OneOfString.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OneOfString.md
new file mode 100644
index 00000000000..d2a686fe563
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OneOfString.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.OneOfString
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Order.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Order.md
new file mode 100644
index 00000000000..66c55c3b473
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Order.md
@@ -0,0 +1,15 @@
+# Org.OpenAPITools.Model.Order
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Id** | **long** |  | [optional] 
+**PetId** | **long** |  | [optional] 
+**Quantity** | **int** |  | [optional] 
+**ShipDate** | **DateTime** |  | [optional] 
+**Status** | **string** | Order Status | [optional] 
+**Complete** | **bool** |  | [optional] [default to false]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterComposite.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterComposite.md
new file mode 100644
index 00000000000..eb42bcc1aaa
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterComposite.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.OuterComposite
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**MyNumber** | **decimal** |  | [optional] 
+**MyString** | **string** |  | [optional] 
+**MyBoolean** | **bool** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnum.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnum.md
new file mode 100644
index 00000000000..245765c7845
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnum.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.OuterEnum
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumDefaultValue.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumDefaultValue.md
new file mode 100644
index 00000000000..3ffaa1086a6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumDefaultValue.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.OuterEnumDefaultValue
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumInteger.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumInteger.md
new file mode 100644
index 00000000000..567858392db
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumInteger.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.OuterEnumInteger
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumIntegerDefaultValue.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumIntegerDefaultValue.md
new file mode 100644
index 00000000000..35c75a44372
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumIntegerDefaultValue.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.OuterEnumIntegerDefaultValue
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumTest.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumTest.md
new file mode 100644
index 00000000000..667c11ba6a2
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/OuterEnumTest.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.OuterEnumTest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ParentPet.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ParentPet.md
new file mode 100644
index 00000000000..0e18ba6d591
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ParentPet.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.ParentPet
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**PetType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Pet.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Pet.md
new file mode 100644
index 00000000000..c7224764e2d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Pet.md
@@ -0,0 +1,15 @@
+# Org.OpenAPITools.Model.Pet
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Id** | **long** |  | [optional] 
+**Category** | [**Category**](Category.md) |  | [optional] 
+**Name** | **string** |  | 
+**PhotoUrls** | **List&lt;string&gt;** |  | 
+**Tags** | [**List&lt;Tag&gt;**](Tag.md) |  | [optional] 
+**Status** | **string** | pet status in the store | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/PetApi.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/PetApi.md
new file mode 100644
index 00000000000..7cadc180a75
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/PetApi.md
@@ -0,0 +1,856 @@
+# Org.OpenAPITools.Api.PetApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|--------|--------------|-------------|
+| [**AddPet**](PetApi.md#addpet) | **POST** /pet | Add a new pet to the store |
+| [**DeletePet**](PetApi.md#deletepet) | **DELETE** /pet/{petId} | Deletes a pet |
+| [**FindPetsByStatus**](PetApi.md#findpetsbystatus) | **GET** /pet/findByStatus | Finds Pets by status |
+| [**FindPetsByTags**](PetApi.md#findpetsbytags) | **GET** /pet/findByTags | Finds Pets by tags |
+| [**GetPetById**](PetApi.md#getpetbyid) | **GET** /pet/{petId} | Find pet by ID |
+| [**UpdatePet**](PetApi.md#updatepet) | **PUT** /pet | Update an existing pet |
+| [**UpdatePetWithForm**](PetApi.md#updatepetwithform) | **POST** /pet/{petId} | Updates a pet in the store with form data |
+| [**UploadFile**](PetApi.md#uploadfile) | **POST** /pet/{petId}/uploadImage | uploads an image |
+| [**UploadFileWithRequiredFile**](PetApi.md#uploadfilewithrequiredfile) | **POST** /fake/{petId}/uploadImageWithRequiredFile | uploads an image (required) |
+
+<a id="addpet"></a>
+# **AddPet**
+> void AddPet (Pet pet)
+
+Add a new pet to the store
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class AddPetExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var pet = new Pet(); // Pet | Pet object that needs to be added to the store
+
+            try
+            {
+                // Add a new pet to the store
+                apiInstance.AddPet(pet);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.AddPet: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the AddPetWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Add a new pet to the store
+    apiInstance.AddPetWithHttpInfo(pet);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.AddPetWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **pet** | [**Pet**](Pet.md) | Pet object that needs to be added to the store |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth), [http_signature_test](../README.md#http_signature_test)
+
+### HTTP request headers
+
+ - **Content-Type**: application/json, application/xml
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **405** | Invalid input |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="deletepet"></a>
+# **DeletePet**
+> void DeletePet (long petId, string? apiKey = null)
+
+Deletes a pet
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class DeletePetExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var petId = 789L;  // long | Pet id to delete
+            var apiKey = "apiKey_example";  // string? |  (optional) 
+
+            try
+            {
+                // Deletes a pet
+                apiInstance.DeletePet(petId, apiKey);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.DeletePet: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the DeletePetWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Deletes a pet
+    apiInstance.DeletePetWithHttpInfo(petId, apiKey);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.DeletePetWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **petId** | **long** | Pet id to delete |  |
+| **apiKey** | **string?** |  | [optional]  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid pet value |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="findpetsbystatus"></a>
+# **FindPetsByStatus**
+> List&lt;Pet&gt; FindPetsByStatus (List<string> status)
+
+Finds Pets by status
+
+Multiple status values can be provided with comma separated strings
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FindPetsByStatusExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var status = new List<string>(); // List<string> | Status values that need to be considered for filter
+
+            try
+            {
+                // Finds Pets by status
+                List<Pet> result = apiInstance.FindPetsByStatus(status);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.FindPetsByStatus: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FindPetsByStatusWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Finds Pets by status
+    ApiResponse<List<Pet>> response = apiInstance.FindPetsByStatusWithHttpInfo(status);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.FindPetsByStatusWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **status** | [**List&lt;string&gt;**](string.md) | Status values that need to be considered for filter |  |
+
+### Return type
+
+[**List&lt;Pet&gt;**](Pet.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth), [http_signature_test](../README.md#http_signature_test)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid status value |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="findpetsbytags"></a>
+# **FindPetsByTags**
+> List&lt;Pet&gt; FindPetsByTags (List<string> tags)
+
+Finds Pets by tags
+
+Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class FindPetsByTagsExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var tags = new List<string>(); // List<string> | Tags to filter by
+
+            try
+            {
+                // Finds Pets by tags
+                List<Pet> result = apiInstance.FindPetsByTags(tags);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.FindPetsByTags: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the FindPetsByTagsWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Finds Pets by tags
+    ApiResponse<List<Pet>> response = apiInstance.FindPetsByTagsWithHttpInfo(tags);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.FindPetsByTagsWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **tags** | [**List&lt;string&gt;**](string.md) | Tags to filter by |  |
+
+### Return type
+
+[**List&lt;Pet&gt;**](Pet.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth), [http_signature_test](../README.md#http_signature_test)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid tag value |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="getpetbyid"></a>
+# **GetPetById**
+> Pet GetPetById (long petId)
+
+Find pet by ID
+
+Returns a single pet
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class GetPetByIdExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure API key authorization: api_key
+            config.AddApiKey("api_key", "YOUR_API_KEY");
+            // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
+            // config.AddApiKeyPrefix("api_key", "Bearer");
+
+            var apiInstance = new PetApi(config);
+            var petId = 789L;  // long | ID of pet to return
+
+            try
+            {
+                // Find pet by ID
+                Pet result = apiInstance.GetPetById(petId);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.GetPetById: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the GetPetByIdWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Find pet by ID
+    ApiResponse<Pet> response = apiInstance.GetPetByIdWithHttpInfo(petId);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.GetPetByIdWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **petId** | **long** | ID of pet to return |  |
+
+### Return type
+
+[**Pet**](Pet.md)
+
+### Authorization
+
+[api_key](../README.md#api_key)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Pet not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="updatepet"></a>
+# **UpdatePet**
+> void UpdatePet (Pet pet)
+
+Update an existing pet
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class UpdatePetExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var pet = new Pet(); // Pet | Pet object that needs to be added to the store
+
+            try
+            {
+                // Update an existing pet
+                apiInstance.UpdatePet(pet);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.UpdatePet: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the UpdatePetWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Update an existing pet
+    apiInstance.UpdatePetWithHttpInfo(pet);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.UpdatePetWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **pet** | [**Pet**](Pet.md) | Pet object that needs to be added to the store |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth), [http_signature_test](../README.md#http_signature_test)
+
+### HTTP request headers
+
+ - **Content-Type**: application/json, application/xml
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid ID supplied |  -  |
+| **404** | Pet not found |  -  |
+| **405** | Validation exception |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="updatepetwithform"></a>
+# **UpdatePetWithForm**
+> void UpdatePetWithForm (long petId, string? name = null, string? status = null)
+
+Updates a pet in the store with form data
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class UpdatePetWithFormExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var petId = 789L;  // long | ID of pet that needs to be updated
+            var name = "name_example";  // string? | Updated name of the pet (optional) 
+            var status = "status_example";  // string? | Updated status of the pet (optional) 
+
+            try
+            {
+                // Updates a pet in the store with form data
+                apiInstance.UpdatePetWithForm(petId, name, status);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.UpdatePetWithForm: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the UpdatePetWithFormWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Updates a pet in the store with form data
+    apiInstance.UpdatePetWithFormWithHttpInfo(petId, name, status);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.UpdatePetWithFormWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **petId** | **long** | ID of pet that needs to be updated |  |
+| **name** | **string?** | Updated name of the pet | [optional]  |
+| **status** | **string?** | Updated status of the pet | [optional]  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: application/x-www-form-urlencoded
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **405** | Invalid input |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="uploadfile"></a>
+# **UploadFile**
+> ApiResponse UploadFile (long petId, string? additionalMetadata = null, System.IO.Stream? file = null)
+
+uploads an image
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class UploadFileExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var petId = 789L;  // long | ID of pet to update
+            var additionalMetadata = "additionalMetadata_example";  // string? | Additional data to pass to server (optional) 
+            var file = new System.IO.MemoryStream(System.IO.File.ReadAllBytes("/path/to/file.txt"));  // System.IO.Stream? | file to upload (optional) 
+
+            try
+            {
+                // uploads an image
+                ApiResponse result = apiInstance.UploadFile(petId, additionalMetadata, file);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.UploadFile: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the UploadFileWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // uploads an image
+    ApiResponse<ApiResponse> response = apiInstance.UploadFileWithHttpInfo(petId, additionalMetadata, file);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.UploadFileWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **petId** | **long** | ID of pet to update |  |
+| **additionalMetadata** | **string?** | Additional data to pass to server | [optional]  |
+| **file** | **System.IO.Stream?****System.IO.Stream?** | file to upload | [optional]  |
+
+### Return type
+
+[**ApiResponse**](ApiResponse.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: multipart/form-data
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="uploadfilewithrequiredfile"></a>
+# **UploadFileWithRequiredFile**
+> ApiResponse UploadFileWithRequiredFile (long petId, System.IO.Stream requiredFile, string? additionalMetadata = null)
+
+uploads an image (required)
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class UploadFileWithRequiredFileExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var petId = 789L;  // long | ID of pet to update
+            var requiredFile = new System.IO.MemoryStream(System.IO.File.ReadAllBytes("/path/to/file.txt"));  // System.IO.Stream | file to upload
+            var additionalMetadata = "additionalMetadata_example";  // string? | Additional data to pass to server (optional) 
+
+            try
+            {
+                // uploads an image (required)
+                ApiResponse result = apiInstance.UploadFileWithRequiredFile(petId, requiredFile, additionalMetadata);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling PetApi.UploadFileWithRequiredFile: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the UploadFileWithRequiredFileWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // uploads an image (required)
+    ApiResponse<ApiResponse> response = apiInstance.UploadFileWithRequiredFileWithHttpInfo(petId, requiredFile, additionalMetadata);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling PetApi.UploadFileWithRequiredFileWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **petId** | **long** | ID of pet to update |  |
+| **requiredFile** | **System.IO.Stream****System.IO.Stream** | file to upload |  |
+| **additionalMetadata** | **string?** | Additional data to pass to server | [optional]  |
+
+### Return type
+
+[**ApiResponse**](ApiResponse.md)
+
+### Authorization
+
+[petstore_auth](../README.md#petstore_auth)
+
+### HTTP request headers
+
+ - **Content-Type**: multipart/form-data
+ - **Accept**: application/json, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Pig.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Pig.md
new file mode 100644
index 00000000000..6e86d0760d5
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Pig.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.Pig
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ClassName** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/PolymorphicProperty.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/PolymorphicProperty.md
new file mode 100644
index 00000000000..8262a41c50d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/PolymorphicProperty.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.PolymorphicProperty
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Quadrilateral.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Quadrilateral.md
new file mode 100644
index 00000000000..0165ddcc0e4
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Quadrilateral.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Quadrilateral
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**QuadrilateralType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/QuadrilateralInterface.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/QuadrilateralInterface.md
new file mode 100644
index 00000000000..6daf340a141
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/QuadrilateralInterface.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.QuadrilateralInterface
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**QuadrilateralType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ReadOnlyFirst.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ReadOnlyFirst.md
new file mode 100644
index 00000000000..b3f4a17ea34
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ReadOnlyFirst.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.ReadOnlyFirst
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Bar** | **string** |  | [optional] [readonly] 
+**Baz** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RequiredClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RequiredClass.md
new file mode 100644
index 00000000000..07b6f018f6c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RequiredClass.md
@@ -0,0 +1,53 @@
+# Org.OpenAPITools.Model.RequiredClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**RequiredNullableIntegerProp** | **int?** |  | 
+**RequiredNotnullableintegerProp** | **int** |  | 
+**NotRequiredNullableIntegerProp** | **int?** |  | [optional] 
+**NotRequiredNotnullableintegerProp** | **int** |  | [optional] 
+**RequiredNullableStringProp** | **string** |  | 
+**RequiredNotnullableStringProp** | **string** |  | 
+**NotrequiredNullableStringProp** | **string** |  | [optional] 
+**NotrequiredNotnullableStringProp** | **string** |  | [optional] 
+**RequiredNullableBooleanProp** | **bool?** |  | 
+**RequiredNotnullableBooleanProp** | **bool** |  | 
+**NotrequiredNullableBooleanProp** | **bool?** |  | [optional] 
+**NotrequiredNotnullableBooleanProp** | **bool** |  | [optional] 
+**RequiredNullableDateProp** | **DateTime?** |  | 
+**RequiredNotNullableDateProp** | **DateTime** |  | 
+**NotRequiredNullableDateProp** | **DateTime?** |  | [optional] 
+**NotRequiredNotnullableDateProp** | **DateTime** |  | [optional] 
+**RequiredNotnullableDatetimeProp** | **DateTime** |  | 
+**RequiredNullableDatetimeProp** | **DateTime?** |  | 
+**NotrequiredNullableDatetimeProp** | **DateTime?** |  | [optional] 
+**NotrequiredNotnullableDatetimeProp** | **DateTime** |  | [optional] 
+**RequiredNullableEnumInteger** | **int?** |  | 
+**RequiredNotnullableEnumInteger** | **int** |  | 
+**NotrequiredNullableEnumInteger** | **int?** |  | [optional] 
+**NotrequiredNotnullableEnumInteger** | **int** |  | [optional] 
+**RequiredNullableEnumIntegerOnly** | **int?** |  | 
+**RequiredNotnullableEnumIntegerOnly** | **int** |  | 
+**NotrequiredNullableEnumIntegerOnly** | **int?** |  | [optional] 
+**NotrequiredNotnullableEnumIntegerOnly** | **int** |  | [optional] 
+**RequiredNotnullableEnumString** | **string** |  | 
+**RequiredNullableEnumString** | **string** |  | 
+**NotrequiredNullableEnumString** | **string** |  | [optional] 
+**NotrequiredNotnullableEnumString** | **string** |  | [optional] 
+**RequiredNullableOuterEnumDefaultValue** | **OuterEnumDefaultValue** |  | 
+**RequiredNotnullableOuterEnumDefaultValue** | **OuterEnumDefaultValue** |  | 
+**NotrequiredNullableOuterEnumDefaultValue** | **OuterEnumDefaultValue** |  | [optional] 
+**NotrequiredNotnullableOuterEnumDefaultValue** | **OuterEnumDefaultValue** |  | [optional] 
+**RequiredNullableUuid** | **Guid?** |  | 
+**RequiredNotnullableUuid** | **Guid** |  | 
+**NotrequiredNullableUuid** | **Guid?** |  | [optional] 
+**NotrequiredNotnullableUuid** | **Guid** |  | [optional] 
+**RequiredNullableArrayOfString** | **List&lt;string&gt;** |  | 
+**RequiredNotnullableArrayOfString** | **List&lt;string&gt;** |  | 
+**NotrequiredNullableArrayOfString** | **List&lt;string&gt;** |  | [optional] 
+**NotrequiredNotnullableArrayOfString** | **List&lt;string&gt;** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Return.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Return.md
new file mode 100644
index 00000000000..052ac919006
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Return.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Return
+Model for testing reserved words
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**VarReturn** | **int** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RolesReportsHash.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RolesReportsHash.md
new file mode 100644
index 00000000000..309b0c02615
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RolesReportsHash.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.RolesReportsHash
+Role report Hash
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**RoleUuid** | **Guid** |  | [optional] 
+**Role** | [**RolesReportsHashRole**](RolesReportsHashRole.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RolesReportsHashRole.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RolesReportsHashRole.md
new file mode 100644
index 00000000000..6f9affc2403
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/RolesReportsHashRole.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.RolesReportsHashRole
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Name** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ScaleneTriangle.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ScaleneTriangle.md
new file mode 100644
index 00000000000..76da8f1de81
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ScaleneTriangle.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.ScaleneTriangle
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**TriangleType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Shape.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Shape.md
new file mode 100644
index 00000000000..9a54628cd41
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Shape.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Shape
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**QuadrilateralType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ShapeInterface.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ShapeInterface.md
new file mode 100644
index 00000000000..57456d6793f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ShapeInterface.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.ShapeInterface
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ShapeOrNull.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ShapeOrNull.md
new file mode 100644
index 00000000000..cbf61ebe77a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ShapeOrNull.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.ShapeOrNull
+The value may be a shape or the 'null' value. This is introduced in OAS schema >= 3.1.
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**QuadrilateralType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/SimpleQuadrilateral.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/SimpleQuadrilateral.md
new file mode 100644
index 00000000000..c329495425d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/SimpleQuadrilateral.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.SimpleQuadrilateral
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**QuadrilateralType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/SpecialModelName.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/SpecialModelName.md
new file mode 100644
index 00000000000..7f8ffca34fa
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/SpecialModelName.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.SpecialModelName
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**SpecialPropertyName** | **long** |  | [optional] 
+**VarSpecialModelName** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/StoreApi.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/StoreApi.md
new file mode 100644
index 00000000000..179da0ff637
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/StoreApi.md
@@ -0,0 +1,373 @@
+# Org.OpenAPITools.Api.StoreApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|--------|--------------|-------------|
+| [**DeleteOrder**](StoreApi.md#deleteorder) | **DELETE** /store/order/{order_id} | Delete purchase order by ID |
+| [**GetInventory**](StoreApi.md#getinventory) | **GET** /store/inventory | Returns pet inventories by status |
+| [**GetOrderById**](StoreApi.md#getorderbyid) | **GET** /store/order/{order_id} | Find purchase order by ID |
+| [**PlaceOrder**](StoreApi.md#placeorder) | **POST** /store/order | Place an order for a pet |
+
+<a id="deleteorder"></a>
+# **DeleteOrder**
+> void DeleteOrder (string orderId)
+
+Delete purchase order by ID
+
+For valid response try integer IDs with value < 1000. Anything above 1000 or nonintegers will generate API errors
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class DeleteOrderExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new StoreApi(config);
+            var orderId = "orderId_example";  // string | ID of the order that needs to be deleted
+
+            try
+            {
+                // Delete purchase order by ID
+                apiInstance.DeleteOrder(orderId);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling StoreApi.DeleteOrder: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the DeleteOrderWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Delete purchase order by ID
+    apiInstance.DeleteOrderWithHttpInfo(orderId);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling StoreApi.DeleteOrderWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **orderId** | **string** | ID of the order that needs to be deleted |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid ID supplied |  -  |
+| **404** | Order not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="getinventory"></a>
+# **GetInventory**
+> Dictionary&lt;string, int&gt; GetInventory ()
+
+Returns pet inventories by status
+
+Returns a map of status codes to quantities
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class GetInventoryExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            // Configure API key authorization: api_key
+            config.AddApiKey("api_key", "YOUR_API_KEY");
+            // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
+            // config.AddApiKeyPrefix("api_key", "Bearer");
+
+            var apiInstance = new StoreApi(config);
+
+            try
+            {
+                // Returns pet inventories by status
+                Dictionary<string, int> result = apiInstance.GetInventory();
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling StoreApi.GetInventory: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the GetInventoryWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Returns pet inventories by status
+    ApiResponse<Dictionary<string, int>> response = apiInstance.GetInventoryWithHttpInfo();
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling StoreApi.GetInventoryWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+**Dictionary<string, int>**
+
+### Authorization
+
+[api_key](../README.md#api_key)
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="getorderbyid"></a>
+# **GetOrderById**
+> Order GetOrderById (long orderId)
+
+Find purchase order by ID
+
+For valid response try integer IDs with value <= 5 or > 10. Other values will generate exceptions
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class GetOrderByIdExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new StoreApi(config);
+            var orderId = 789L;  // long | ID of pet that needs to be fetched
+
+            try
+            {
+                // Find purchase order by ID
+                Order result = apiInstance.GetOrderById(orderId);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling StoreApi.GetOrderById: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the GetOrderByIdWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Find purchase order by ID
+    ApiResponse<Order> response = apiInstance.GetOrderByIdWithHttpInfo(orderId);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling StoreApi.GetOrderByIdWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **orderId** | **long** | ID of pet that needs to be fetched |  |
+
+### Return type
+
+[**Order**](Order.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Order not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="placeorder"></a>
+# **PlaceOrder**
+> Order PlaceOrder (Order order)
+
+Place an order for a pet
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class PlaceOrderExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new StoreApi(config);
+            var order = new Order(); // Order | order placed for purchasing the pet
+
+            try
+            {
+                // Place an order for a pet
+                Order result = apiInstance.PlaceOrder(order);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling StoreApi.PlaceOrder: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the PlaceOrderWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Place an order for a pet
+    ApiResponse<Order> response = apiInstance.PlaceOrderWithHttpInfo(order);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling StoreApi.PlaceOrderWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **order** | [**Order**](Order.md) | order placed for purchasing the pet |  |
+
+### Return type
+
+[**Order**](Order.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid Order |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Tag.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Tag.md
new file mode 100644
index 00000000000..fdd22eb31fd
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Tag.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Tag
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Id** | **long** |  | [optional] 
+**Name** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestCollectionEndingWithWordList.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestCollectionEndingWithWordList.md
new file mode 100644
index 00000000000..0e5568637b8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestCollectionEndingWithWordList.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.TestCollectionEndingWithWordList
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Value** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestCollectionEndingWithWordListObject.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestCollectionEndingWithWordListObject.md
new file mode 100644
index 00000000000..7213b3ca8d9
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestCollectionEndingWithWordListObject.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.TestCollectionEndingWithWordListObject
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**TestCollectionEndingWithWordList** | [**List&lt;TestCollectionEndingWithWordList&gt;**](TestCollectionEndingWithWordList.md) |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestInlineFreeformAdditionalPropertiesRequest.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestInlineFreeformAdditionalPropertiesRequest.md
new file mode 100644
index 00000000000..c1cf9ce2f81
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TestInlineFreeformAdditionalPropertiesRequest.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.TestInlineFreeformAdditionalPropertiesRequest
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**SomeProperty** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Triangle.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Triangle.md
new file mode 100644
index 00000000000..c4d0452b4e8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Triangle.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Triangle
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ShapeType** | **string** |  | 
+**TriangleType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TriangleInterface.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TriangleInterface.md
new file mode 100644
index 00000000000..e0d8b5a5913
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/TriangleInterface.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.TriangleInterface
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**TriangleType** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/User.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/User.md
new file mode 100644
index 00000000000..b0cd4dc042b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/User.md
@@ -0,0 +1,21 @@
+# Org.OpenAPITools.Model.User
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Id** | **long** |  | [optional] 
+**Username** | **string** |  | [optional] 
+**FirstName** | **string** |  | [optional] 
+**LastName** | **string** |  | [optional] 
+**Email** | **string** |  | [optional] 
+**Password** | **string** |  | [optional] 
+**Phone** | **string** |  | [optional] 
+**UserStatus** | **int** | User Status | [optional] 
+**ObjectWithNoDeclaredProps** | **Object** | test code generation for objects Value must be a map of strings to values. It cannot be the &#39;null&#39; value. | [optional] 
+**ObjectWithNoDeclaredPropsNullable** | **Object** | test code generation for nullable objects. Value must be a map of strings to values or the &#39;null&#39; value. | [optional] 
+**AnyTypeProp** | **Object** | test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. See https://github.com/OAI/OpenAPI-Specification/issues/1389 | [optional] 
+**AnyTypePropNullable** | **Object** | test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. The &#39;nullable&#39; attribute does not change the allowed values. | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/UserApi.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/UserApi.md
new file mode 100644
index 00000000000..adb1d8d3fec
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/UserApi.md
@@ -0,0 +1,713 @@
+# Org.OpenAPITools.Api.UserApi
+
+All URIs are relative to *http://petstore.swagger.io:80/v2*
+
+| Method | HTTP request | Description |
+|--------|--------------|-------------|
+| [**CreateUser**](UserApi.md#createuser) | **POST** /user | Create user |
+| [**CreateUsersWithArrayInput**](UserApi.md#createuserswitharrayinput) | **POST** /user/createWithArray | Creates list of users with given input array |
+| [**CreateUsersWithListInput**](UserApi.md#createuserswithlistinput) | **POST** /user/createWithList | Creates list of users with given input array |
+| [**DeleteUser**](UserApi.md#deleteuser) | **DELETE** /user/{username} | Delete user |
+| [**GetUserByName**](UserApi.md#getuserbyname) | **GET** /user/{username} | Get user by user name |
+| [**LoginUser**](UserApi.md#loginuser) | **GET** /user/login | Logs user into the system |
+| [**LogoutUser**](UserApi.md#logoutuser) | **GET** /user/logout | Logs out current logged in user session |
+| [**UpdateUser**](UserApi.md#updateuser) | **PUT** /user/{username} | Updated user |
+
+<a id="createuser"></a>
+# **CreateUser**
+> void CreateUser (User user)
+
+Create user
+
+This can only be done by the logged in user.
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class CreateUserExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+            var user = new User(); // User | Created user object
+
+            try
+            {
+                // Create user
+                apiInstance.CreateUser(user);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.CreateUser: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the CreateUserWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Create user
+    apiInstance.CreateUserWithHttpInfo(user);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.CreateUserWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **user** | [**User**](User.md) | Created user object |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="createuserswitharrayinput"></a>
+# **CreateUsersWithArrayInput**
+> void CreateUsersWithArrayInput (List<User> user)
+
+Creates list of users with given input array
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class CreateUsersWithArrayInputExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+            var user = new List<User>(); // List<User> | List of user object
+
+            try
+            {
+                // Creates list of users with given input array
+                apiInstance.CreateUsersWithArrayInput(user);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.CreateUsersWithArrayInput: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the CreateUsersWithArrayInputWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Creates list of users with given input array
+    apiInstance.CreateUsersWithArrayInputWithHttpInfo(user);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.CreateUsersWithArrayInputWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **user** | [**List&lt;User&gt;**](User.md) | List of user object |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="createuserswithlistinput"></a>
+# **CreateUsersWithListInput**
+> void CreateUsersWithListInput (List<User> user)
+
+Creates list of users with given input array
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class CreateUsersWithListInputExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+            var user = new List<User>(); // List<User> | List of user object
+
+            try
+            {
+                // Creates list of users with given input array
+                apiInstance.CreateUsersWithListInput(user);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.CreateUsersWithListInput: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the CreateUsersWithListInputWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Creates list of users with given input array
+    apiInstance.CreateUsersWithListInputWithHttpInfo(user);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.CreateUsersWithListInputWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **user** | [**List&lt;User&gt;**](User.md) | List of user object |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="deleteuser"></a>
+# **DeleteUser**
+> void DeleteUser (string username)
+
+Delete user
+
+This can only be done by the logged in user.
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class DeleteUserExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+            var username = "username_example";  // string | The name that needs to be deleted
+
+            try
+            {
+                // Delete user
+                apiInstance.DeleteUser(username);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.DeleteUser: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the DeleteUserWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Delete user
+    apiInstance.DeleteUserWithHttpInfo(username);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.DeleteUserWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **username** | **string** | The name that needs to be deleted |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid username supplied |  -  |
+| **404** | User not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="getuserbyname"></a>
+# **GetUserByName**
+> User GetUserByName (string username)
+
+Get user by user name
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class GetUserByNameExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+            var username = "username_example";  // string | The name that needs to be fetched. Use user1 for testing.
+
+            try
+            {
+                // Get user by user name
+                User result = apiInstance.GetUserByName(username);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.GetUserByName: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the GetUserByNameWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Get user by user name
+    ApiResponse<User> response = apiInstance.GetUserByNameWithHttpInfo(username);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.GetUserByNameWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **username** | **string** | The name that needs to be fetched. Use user1 for testing. |  |
+
+### Return type
+
+[**User**](User.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid username supplied |  -  |
+| **404** | User not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="loginuser"></a>
+# **LoginUser**
+> string LoginUser (string username, string password)
+
+Logs user into the system
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class LoginUserExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+            var username = "username_example";  // string | The user name for login
+            var password = "password_example";  // string | The password for login in clear text
+
+            try
+            {
+                // Logs user into the system
+                string result = apiInstance.LoginUser(username, password);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.LoginUser: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the LoginUserWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Logs user into the system
+    ApiResponse<string> response = apiInstance.LoginUserWithHttpInfo(username, password);
+    Debug.Write("Status Code: " + response.StatusCode);
+    Debug.Write("Response Headers: " + response.Headers);
+    Debug.Write("Response Body: " + response.Data);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.LoginUserWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **username** | **string** | The user name for login |  |
+| **password** | **string** | The password for login in clear text |  |
+
+### Return type
+
+**string**
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: application/xml, application/json
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  * X-Rate-Limit - calls per hour allowed by the user <br>  * X-Expires-After - date in UTC when token expires <br>  |
+| **400** | Invalid username/password supplied |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="logoutuser"></a>
+# **LogoutUser**
+> void LogoutUser ()
+
+Logs out current logged in user session
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class LogoutUserExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+
+            try
+            {
+                // Logs out current logged in user session
+                apiInstance.LogoutUser();
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.LogoutUser: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the LogoutUserWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Logs out current logged in user session
+    apiInstance.LogoutUserWithHttpInfo();
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.LogoutUserWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+This endpoint does not need any parameter.
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: Not defined
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **0** | successful operation |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
+<a id="updateuser"></a>
+# **UpdateUser**
+> void UpdateUser (string username, User user)
+
+Updated user
+
+This can only be done by the logged in user.
+
+### Example
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Api;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Model;
+
+namespace Example
+{
+    public class UpdateUserExample
+    {
+        public static void Main()
+        {
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new UserApi(config);
+            var username = "username_example";  // string | name that need to be deleted
+            var user = new User(); // User | Updated user object
+
+            try
+            {
+                // Updated user
+                apiInstance.UpdateUser(username, user);
+            }
+            catch (ApiException  e)
+            {
+                Debug.Print("Exception when calling UserApi.UpdateUser: " + e.Message);
+                Debug.Print("Status Code: " + e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+        }
+    }
+}
+```
+
+#### Using the UpdateUserWithHttpInfo variant
+This returns an ApiResponse object which contains the response data, status code and headers.
+
+```csharp
+try
+{
+    // Updated user
+    apiInstance.UpdateUserWithHttpInfo(username, user);
+}
+catch (ApiException e)
+{
+    Debug.Print("Exception when calling UserApi.UpdateUserWithHttpInfo: " + e.Message);
+    Debug.Print("Status Code: " + e.ErrorCode);
+    Debug.Print(e.StackTrace);
+}
+```
+
+### Parameters
+
+| Name | Type | Description | Notes |
+|------|------|-------------|-------|
+| **username** | **string** | name that need to be deleted |  |
+| **user** | [**User**](User.md) | Updated user object |  |
+
+### Return type
+
+void (empty response body)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+ - **Content-Type**: application/json
+ - **Accept**: Not defined
+
+
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid user supplied |  -  |
+| **404** | User not found |  -  |
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Whale.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Whale.md
new file mode 100644
index 00000000000..5fc3dc7f85c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Whale.md
@@ -0,0 +1,12 @@
+# Org.OpenAPITools.Model.Whale
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**HasBaleen** | **bool** |  | [optional] 
+**HasTeeth** | **bool** |  | [optional] 
+**ClassName** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Zebra.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Zebra.md
new file mode 100644
index 00000000000..31e686adf0e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/Zebra.md
@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.Zebra
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**Type** | **string** |  | [optional] 
+**ClassName** | **string** |  | 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ZeroBasedEnum.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ZeroBasedEnum.md
new file mode 100644
index 00000000000..9be7014a06f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ZeroBasedEnum.md
@@ -0,0 +1,9 @@
+# Org.OpenAPITools.Model.ZeroBasedEnum
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ZeroBasedEnumClass.md b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ZeroBasedEnumClass.md
new file mode 100644
index 00000000000..b804bc0d7fb
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/docs/ZeroBasedEnumClass.md
@@ -0,0 +1,10 @@
+# Org.OpenAPITools.Model.ZeroBasedEnumClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**ZeroBasedEnum** | **string** |  | [optional] 
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/git_push.sh b/samples/client/petstore/csharp/OpenAPIClient-net8.0/git_push.sh
new file mode 100644
index 00000000000..f53a75d4fab
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/git_push.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+# ref: https://help.github.com/articles/adding-an-existing-project-to-github-using-the-command-line/
+#
+# Usage example: /bin/sh ./git_push.sh wing328 openapi-petstore-perl "minor update" "gitlab.com"
+
+git_user_id=$1
+git_repo_id=$2
+release_note=$3
+git_host=$4
+
+if [ "$git_host" = "" ]; then
+    git_host="github.com"
+    echo "[INFO] No command line input provided. Set \$git_host to $git_host"
+fi
+
+if [ "$git_user_id" = "" ]; then
+    git_user_id="GIT_USER_ID"
+    echo "[INFO] No command line input provided. Set \$git_user_id to $git_user_id"
+fi
+
+if [ "$git_repo_id" = "" ]; then
+    git_repo_id="GIT_REPO_ID"
+    echo "[INFO] No command line input provided. Set \$git_repo_id to $git_repo_id"
+fi
+
+if [ "$release_note" = "" ]; then
+    release_note="Minor update"
+    echo "[INFO] No command line input provided. Set \$release_note to $release_note"
+fi
+
+# Initialize the local directory as a Git repository
+git init
+
+# Adds the files in the local repository and stages them for commit.
+git add .
+
+# Commits the tracked changes and prepares them to be pushed to a remote repository.
+git commit -m "$release_note"
+
+# Sets the new remote
+git_remote=$(git remote)
+if [ "$git_remote" = "" ]; then # git remote not defined
+
+    if [ "$GIT_TOKEN" = "" ]; then
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git credential in your environment."
+        git remote add origin https://${git_host}/${git_user_id}/${git_repo_id}.git
+    else
+        git remote add origin https://${git_user_id}:"${GIT_TOKEN}"@${git_host}/${git_user_id}/${git_repo_id}.git
+    fi
+
+fi
+
+git pull origin master
+
+# Pushes (Forces) the changes in the local repository up to the remote repository
+echo "Git pushing to https://${git_host}/${git_user_id}/${git_repo_id}.git"
+git push origin master 2>&1 | grep -v 'To https'
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/AnotherFakeApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/AnotherFakeApiTests.cs
new file mode 100644
index 00000000000..1d46982928d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/AnotherFakeApiTests.cs
@@ -0,0 +1,69 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Reflection;
+using RestSharp;
+using Xunit;
+
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Api;
+// uncomment below to import models
+//using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Test.Api
+{
+    /// <summary>
+    ///  Class for testing AnotherFakeApi
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the API endpoint.
+    /// </remarks>
+    public class AnotherFakeApiTests : IDisposable
+    {
+        private AnotherFakeApi instance;
+
+        public AnotherFakeApiTests()
+        {
+            instance = new AnotherFakeApi();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of AnotherFakeApi
+        /// </summary>
+        [Fact]
+        public void InstanceTest()
+        {
+            // TODO uncomment below to test 'IsType' AnotherFakeApi
+            //Assert.IsType<AnotherFakeApi>(instance);
+        }
+
+        /// <summary>
+        /// Test Call123TestSpecialTags
+        /// </summary>
+        [Fact]
+        public void Call123TestSpecialTagsTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //ModelClient modelClient = null;
+            //var response = instance.Call123TestSpecialTags(modelClient);
+            //Assert.IsType<ModelClient>(response);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/DefaultApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/DefaultApiTests.cs
new file mode 100644
index 00000000000..f870aa70642
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/DefaultApiTests.cs
@@ -0,0 +1,112 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Reflection;
+using RestSharp;
+using Xunit;
+
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Api;
+// uncomment below to import models
+//using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Test.Api
+{
+    /// <summary>
+    ///  Class for testing DefaultApi
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the API endpoint.
+    /// </remarks>
+    public class DefaultApiTests : IDisposable
+    {
+        private DefaultApi instance;
+
+        public DefaultApiTests()
+        {
+            instance = new DefaultApi();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of DefaultApi
+        /// </summary>
+        [Fact]
+        public void InstanceTest()
+        {
+            // TODO uncomment below to test 'IsType' DefaultApi
+            //Assert.IsType<DefaultApi>(instance);
+        }
+
+        /// <summary>
+        /// Test FooGet
+        /// </summary>
+        [Fact]
+        public void FooGetTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //var response = instance.FooGet();
+            //Assert.IsType<FooGetDefaultResponse>(response);
+        }
+
+        /// <summary>
+        /// Test GetCountry
+        /// </summary>
+        [Fact]
+        public void GetCountryTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string country = null;
+            //instance.GetCountry(country);
+        }
+
+        /// <summary>
+        /// Test Hello
+        /// </summary>
+        [Fact]
+        public void HelloTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //var response = instance.Hello();
+            //Assert.IsType<List<Guid>>(response);
+        }
+
+        /// <summary>
+        /// Test RolesReportGet
+        /// </summary>
+        [Fact]
+        public void RolesReportGetTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //var response = instance.RolesReportGet();
+            //Assert.IsType<List<List<RolesReportsHash>>>(response);
+        }
+
+        /// <summary>
+        /// Test Test
+        /// </summary>
+        [Fact]
+        public void TestTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //var response = instance.Test();
+            //Assert.IsType<NotificationtestGetElementsV1ResponseMPayload>(response);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/FakeApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/FakeApiTests.cs
new file mode 100644
index 00000000000..82459d8a928
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/FakeApiTests.cs
@@ -0,0 +1,274 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Reflection;
+using RestSharp;
+using Xunit;
+
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Api;
+// uncomment below to import models
+//using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Test.Api
+{
+    /// <summary>
+    ///  Class for testing FakeApi
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the API endpoint.
+    /// </remarks>
+    public class FakeApiTests : IDisposable
+    {
+        private FakeApi instance;
+
+        public FakeApiTests()
+        {
+            instance = new FakeApi();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of FakeApi
+        /// </summary>
+        [Fact]
+        public void InstanceTest()
+        {
+            // TODO uncomment below to test 'IsType' FakeApi
+            //Assert.IsType<FakeApi>(instance);
+        }
+
+        /// <summary>
+        /// Test FakeHealthGet
+        /// </summary>
+        [Fact]
+        public void FakeHealthGetTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //var response = instance.FakeHealthGet();
+            //Assert.IsType<HealthCheckResult>(response);
+        }
+
+        /// <summary>
+        /// Test FakeOuterBooleanSerialize
+        /// </summary>
+        [Fact]
+        public void FakeOuterBooleanSerializeTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //bool? body = null;
+            //var response = instance.FakeOuterBooleanSerialize(body);
+            //Assert.IsType<bool>(response);
+        }
+
+        /// <summary>
+        /// Test FakeOuterCompositeSerialize
+        /// </summary>
+        [Fact]
+        public void FakeOuterCompositeSerializeTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //OuterComposite? outerComposite = null;
+            //var response = instance.FakeOuterCompositeSerialize(outerComposite);
+            //Assert.IsType<OuterComposite>(response);
+        }
+
+        /// <summary>
+        /// Test FakeOuterNumberSerialize
+        /// </summary>
+        [Fact]
+        public void FakeOuterNumberSerializeTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //decimal? body = null;
+            //var response = instance.FakeOuterNumberSerialize(body);
+            //Assert.IsType<decimal>(response);
+        }
+
+        /// <summary>
+        /// Test FakeOuterStringSerialize
+        /// </summary>
+        [Fact]
+        public void FakeOuterStringSerializeTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //Guid requiredStringUuid = null;
+            //string? body = null;
+            //var response = instance.FakeOuterStringSerialize(requiredStringUuid, body);
+            //Assert.IsType<string>(response);
+        }
+
+        /// <summary>
+        /// Test GetArrayOfEnums
+        /// </summary>
+        [Fact]
+        public void GetArrayOfEnumsTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //var response = instance.GetArrayOfEnums();
+            //Assert.IsType<List<OuterEnum>>(response);
+        }
+
+        /// <summary>
+        /// Test TestBodyWithFileSchema
+        /// </summary>
+        [Fact]
+        public void TestBodyWithFileSchemaTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //FileSchemaTestClass fileSchemaTestClass = null;
+            //instance.TestBodyWithFileSchema(fileSchemaTestClass);
+        }
+
+        /// <summary>
+        /// Test TestBodyWithQueryParams
+        /// </summary>
+        [Fact]
+        public void TestBodyWithQueryParamsTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string query = null;
+            //User user = null;
+            //instance.TestBodyWithQueryParams(query, user);
+        }
+
+        /// <summary>
+        /// Test TestClientModel
+        /// </summary>
+        [Fact]
+        public void TestClientModelTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //ModelClient modelClient = null;
+            //var response = instance.TestClientModel(modelClient);
+            //Assert.IsType<ModelClient>(response);
+        }
+
+        /// <summary>
+        /// Test TestEndpointParameters
+        /// </summary>
+        [Fact]
+        public void TestEndpointParametersTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //decimal number = null;
+            //double varDouble = null;
+            //string patternWithoutDelimiter = null;
+            //byte[] varByte = null;
+            //int? integer = null;
+            //int? int32 = null;
+            //long? int64 = null;
+            //float? varFloat = null;
+            //string? varString = null;
+            //System.IO.Stream? binary = null;
+            //DateTime? date = null;
+            //DateTime? dateTime = null;
+            //string? password = null;
+            //string? callback = null;
+            //instance.TestEndpointParameters(number, varDouble, patternWithoutDelimiter, varByte, integer, int32, int64, varFloat, varString, binary, date, dateTime, password, callback);
+        }
+
+        /// <summary>
+        /// Test TestEnumParameters
+        /// </summary>
+        [Fact]
+        public void TestEnumParametersTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //List<string>? enumHeaderStringArray = null;
+            //string? enumHeaderString = null;
+            //List<string>? enumQueryStringArray = null;
+            //string? enumQueryString = null;
+            //int? enumQueryInteger = null;
+            //double? enumQueryDouble = null;
+            //List<string>? enumFormStringArray = null;
+            //string? enumFormString = null;
+            //instance.TestEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+        }
+
+        /// <summary>
+        /// Test TestGroupParameters
+        /// </summary>
+        [Fact]
+        public void TestGroupParametersTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //int requiredStringGroup = null;
+            //bool requiredBooleanGroup = null;
+            //long requiredInt64Group = null;
+            //int? stringGroup = null;
+            //bool? booleanGroup = null;
+            //long? int64Group = null;
+            //instance.TestGroupParameters(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group);
+        }
+
+        /// <summary>
+        /// Test TestInlineAdditionalProperties
+        /// </summary>
+        [Fact]
+        public void TestInlineAdditionalPropertiesTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //Dictionary<string, string> requestBody = null;
+            //instance.TestInlineAdditionalProperties(requestBody);
+        }
+
+        /// <summary>
+        /// Test TestInlineFreeformAdditionalProperties
+        /// </summary>
+        [Fact]
+        public void TestInlineFreeformAdditionalPropertiesTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest = null;
+            //instance.TestInlineFreeformAdditionalProperties(testInlineFreeformAdditionalPropertiesRequest);
+        }
+
+        /// <summary>
+        /// Test TestJsonFormData
+        /// </summary>
+        [Fact]
+        public void TestJsonFormDataTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string param = null;
+            //string param2 = null;
+            //instance.TestJsonFormData(param, param2);
+        }
+
+        /// <summary>
+        /// Test TestQueryParameterCollectionFormat
+        /// </summary>
+        [Fact]
+        public void TestQueryParameterCollectionFormatTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //List<string> pipe = null;
+            //List<string> ioutil = null;
+            //List<string> http = null;
+            //List<string> url = null;
+            //List<string> context = null;
+            //string requiredNotNullable = null;
+            //string requiredNullable = null;
+            //string? notRequiredNotNullable = null;
+            //string? notRequiredNullable = null;
+            //instance.TestQueryParameterCollectionFormat(pipe, ioutil, http, url, context, requiredNotNullable, requiredNullable, notRequiredNotNullable, notRequiredNullable);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/FakeClassnameTags123ApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/FakeClassnameTags123ApiTests.cs
new file mode 100644
index 00000000000..bbfd4a586e7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/FakeClassnameTags123ApiTests.cs
@@ -0,0 +1,69 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Reflection;
+using RestSharp;
+using Xunit;
+
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Api;
+// uncomment below to import models
+//using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Test.Api
+{
+    /// <summary>
+    ///  Class for testing FakeClassnameTags123Api
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the API endpoint.
+    /// </remarks>
+    public class FakeClassnameTags123ApiTests : IDisposable
+    {
+        private FakeClassnameTags123Api instance;
+
+        public FakeClassnameTags123ApiTests()
+        {
+            instance = new FakeClassnameTags123Api();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of FakeClassnameTags123Api
+        /// </summary>
+        [Fact]
+        public void InstanceTest()
+        {
+            // TODO uncomment below to test 'IsType' FakeClassnameTags123Api
+            //Assert.IsType<FakeClassnameTags123Api>(instance);
+        }
+
+        /// <summary>
+        /// Test TestClassname
+        /// </summary>
+        [Fact]
+        public void TestClassnameTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //ModelClient modelClient = null;
+            //var response = instance.TestClassname(modelClient);
+            //Assert.IsType<ModelClient>(response);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/PetApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/PetApiTests.cs
new file mode 100644
index 00000000000..f4b42c5f70d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/PetApiTests.cs
@@ -0,0 +1,168 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Reflection;
+using RestSharp;
+using Xunit;
+
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Api;
+// uncomment below to import models
+//using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Test.Api
+{
+    /// <summary>
+    ///  Class for testing PetApi
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the API endpoint.
+    /// </remarks>
+    public class PetApiTests : IDisposable
+    {
+        private PetApi instance;
+
+        public PetApiTests()
+        {
+            instance = new PetApi();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of PetApi
+        /// </summary>
+        [Fact]
+        public void InstanceTest()
+        {
+            // TODO uncomment below to test 'IsType' PetApi
+            //Assert.IsType<PetApi>(instance);
+        }
+
+        /// <summary>
+        /// Test AddPet
+        /// </summary>
+        [Fact]
+        public void AddPetTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //Pet pet = null;
+            //instance.AddPet(pet);
+        }
+
+        /// <summary>
+        /// Test DeletePet
+        /// </summary>
+        [Fact]
+        public void DeletePetTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //long petId = null;
+            //string? apiKey = null;
+            //instance.DeletePet(petId, apiKey);
+        }
+
+        /// <summary>
+        /// Test FindPetsByStatus
+        /// </summary>
+        [Fact]
+        public void FindPetsByStatusTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //List<string> status = null;
+            //var response = instance.FindPetsByStatus(status);
+            //Assert.IsType<List<Pet>>(response);
+        }
+
+        /// <summary>
+        /// Test FindPetsByTags
+        /// </summary>
+        [Fact]
+        public void FindPetsByTagsTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //List<string> tags = null;
+            //var response = instance.FindPetsByTags(tags);
+            //Assert.IsType<List<Pet>>(response);
+        }
+
+        /// <summary>
+        /// Test GetPetById
+        /// </summary>
+        [Fact]
+        public void GetPetByIdTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //long petId = null;
+            //var response = instance.GetPetById(petId);
+            //Assert.IsType<Pet>(response);
+        }
+
+        /// <summary>
+        /// Test UpdatePet
+        /// </summary>
+        [Fact]
+        public void UpdatePetTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //Pet pet = null;
+            //instance.UpdatePet(pet);
+        }
+
+        /// <summary>
+        /// Test UpdatePetWithForm
+        /// </summary>
+        [Fact]
+        public void UpdatePetWithFormTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //long petId = null;
+            //string? name = null;
+            //string? status = null;
+            //instance.UpdatePetWithForm(petId, name, status);
+        }
+
+        /// <summary>
+        /// Test UploadFile
+        /// </summary>
+        [Fact]
+        public void UploadFileTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //long petId = null;
+            //string? additionalMetadata = null;
+            //System.IO.Stream? file = null;
+            //var response = instance.UploadFile(petId, additionalMetadata, file);
+            //Assert.IsType<ApiResponse>(response);
+        }
+
+        /// <summary>
+        /// Test UploadFileWithRequiredFile
+        /// </summary>
+        [Fact]
+        public void UploadFileWithRequiredFileTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //long petId = null;
+            //System.IO.Stream requiredFile = null;
+            //string? additionalMetadata = null;
+            //var response = instance.UploadFileWithRequiredFile(petId, requiredFile, additionalMetadata);
+            //Assert.IsType<ApiResponse>(response);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/StoreApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/StoreApiTests.cs
new file mode 100644
index 00000000000..48e9f32748d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/StoreApiTests.cs
@@ -0,0 +1,103 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Reflection;
+using RestSharp;
+using Xunit;
+
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Api;
+// uncomment below to import models
+//using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Test.Api
+{
+    /// <summary>
+    ///  Class for testing StoreApi
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the API endpoint.
+    /// </remarks>
+    public class StoreApiTests : IDisposable
+    {
+        private StoreApi instance;
+
+        public StoreApiTests()
+        {
+            instance = new StoreApi();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of StoreApi
+        /// </summary>
+        [Fact]
+        public void InstanceTest()
+        {
+            // TODO uncomment below to test 'IsType' StoreApi
+            //Assert.IsType<StoreApi>(instance);
+        }
+
+        /// <summary>
+        /// Test DeleteOrder
+        /// </summary>
+        [Fact]
+        public void DeleteOrderTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string orderId = null;
+            //instance.DeleteOrder(orderId);
+        }
+
+        /// <summary>
+        /// Test GetInventory
+        /// </summary>
+        [Fact]
+        public void GetInventoryTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //var response = instance.GetInventory();
+            //Assert.IsType<Dictionary<string, int>>(response);
+        }
+
+        /// <summary>
+        /// Test GetOrderById
+        /// </summary>
+        [Fact]
+        public void GetOrderByIdTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //long orderId = null;
+            //var response = instance.GetOrderById(orderId);
+            //Assert.IsType<Order>(response);
+        }
+
+        /// <summary>
+        /// Test PlaceOrder
+        /// </summary>
+        [Fact]
+        public void PlaceOrderTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //Order order = null;
+            //var response = instance.PlaceOrder(order);
+            //Assert.IsType<Order>(response);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/UserApiTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/UserApiTests.cs
new file mode 100644
index 00000000000..792db5819a0
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Api/UserApiTests.cs
@@ -0,0 +1,148 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Reflection;
+using RestSharp;
+using Xunit;
+
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Api;
+// uncomment below to import models
+//using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Test.Api
+{
+    /// <summary>
+    ///  Class for testing UserApi
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the API endpoint.
+    /// </remarks>
+    public class UserApiTests : IDisposable
+    {
+        private UserApi instance;
+
+        public UserApiTests()
+        {
+            instance = new UserApi();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of UserApi
+        /// </summary>
+        [Fact]
+        public void InstanceTest()
+        {
+            // TODO uncomment below to test 'IsType' UserApi
+            //Assert.IsType<UserApi>(instance);
+        }
+
+        /// <summary>
+        /// Test CreateUser
+        /// </summary>
+        [Fact]
+        public void CreateUserTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //User user = null;
+            //instance.CreateUser(user);
+        }
+
+        /// <summary>
+        /// Test CreateUsersWithArrayInput
+        /// </summary>
+        [Fact]
+        public void CreateUsersWithArrayInputTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //List<User> user = null;
+            //instance.CreateUsersWithArrayInput(user);
+        }
+
+        /// <summary>
+        /// Test CreateUsersWithListInput
+        /// </summary>
+        [Fact]
+        public void CreateUsersWithListInputTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //List<User> user = null;
+            //instance.CreateUsersWithListInput(user);
+        }
+
+        /// <summary>
+        /// Test DeleteUser
+        /// </summary>
+        [Fact]
+        public void DeleteUserTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string username = null;
+            //instance.DeleteUser(username);
+        }
+
+        /// <summary>
+        /// Test GetUserByName
+        /// </summary>
+        [Fact]
+        public void GetUserByNameTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string username = null;
+            //var response = instance.GetUserByName(username);
+            //Assert.IsType<User>(response);
+        }
+
+        /// <summary>
+        /// Test LoginUser
+        /// </summary>
+        [Fact]
+        public void LoginUserTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string username = null;
+            //string password = null;
+            //var response = instance.LoginUser(username, password);
+            //Assert.IsType<string>(response);
+        }
+
+        /// <summary>
+        /// Test LogoutUser
+        /// </summary>
+        [Fact]
+        public void LogoutUserTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //instance.LogoutUser();
+        }
+
+        /// <summary>
+        /// Test UpdateUser
+        /// </summary>
+        [Fact]
+        public void UpdateUserTest()
+        {
+            // TODO uncomment below to test the method and replace null with proper value
+            //string username = null;
+            //User user = null;
+            //instance.UpdateUser(username, user);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ActivityOutputElementRepresentationTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ActivityOutputElementRepresentationTests.cs
new file mode 100644
index 00000000000..b4bb7359203
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ActivityOutputElementRepresentationTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ActivityOutputElementRepresentation
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ActivityOutputElementRepresentationTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ActivityOutputElementRepresentation
+        //private ActivityOutputElementRepresentation instance;
+
+        public ActivityOutputElementRepresentationTests()
+        {
+            // TODO uncomment below to create an instance of ActivityOutputElementRepresentation
+            //instance = new ActivityOutputElementRepresentation();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ActivityOutputElementRepresentation
+        /// </summary>
+        [Fact]
+        public void ActivityOutputElementRepresentationInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ActivityOutputElementRepresentation
+            //Assert.IsType<ActivityOutputElementRepresentation>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Prop1'
+        /// </summary>
+        [Fact]
+        public void Prop1Test()
+        {
+            // TODO unit test for the property 'Prop1'
+        }
+
+        /// <summary>
+        /// Test the property 'Prop2'
+        /// </summary>
+        [Fact]
+        public void Prop2Test()
+        {
+            // TODO unit test for the property 'Prop2'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ActivityTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ActivityTests.cs
new file mode 100644
index 00000000000..0b9efbd5a20
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ActivityTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Activity
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ActivityTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Activity
+        //private Activity instance;
+
+        public ActivityTests()
+        {
+            // TODO uncomment below to create an instance of Activity
+            //instance = new Activity();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Activity
+        /// </summary>
+        [Fact]
+        public void ActivityInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Activity
+            //Assert.IsType<Activity>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ActivityOutputs'
+        /// </summary>
+        [Fact]
+        public void ActivityOutputsTest()
+        {
+            // TODO unit test for the property 'ActivityOutputs'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AdditionalPropertiesClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AdditionalPropertiesClassTests.cs
new file mode 100644
index 00000000000..d766719b5bc
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AdditionalPropertiesClassTests.cs
@@ -0,0 +1,129 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing AdditionalPropertiesClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class AdditionalPropertiesClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for AdditionalPropertiesClass
+        //private AdditionalPropertiesClass instance;
+
+        public AdditionalPropertiesClassTests()
+        {
+            // TODO uncomment below to create an instance of AdditionalPropertiesClass
+            //instance = new AdditionalPropertiesClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of AdditionalPropertiesClass
+        /// </summary>
+        [Fact]
+        public void AdditionalPropertiesClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" AdditionalPropertiesClass
+            //Assert.IsType<AdditionalPropertiesClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'MapProperty'
+        /// </summary>
+        [Fact]
+        public void MapPropertyTest()
+        {
+            // TODO unit test for the property 'MapProperty'
+        }
+
+        /// <summary>
+        /// Test the property 'MapOfMapProperty'
+        /// </summary>
+        [Fact]
+        public void MapOfMapPropertyTest()
+        {
+            // TODO unit test for the property 'MapOfMapProperty'
+        }
+
+        /// <summary>
+        /// Test the property 'Anytype1'
+        /// </summary>
+        [Fact]
+        public void Anytype1Test()
+        {
+            // TODO unit test for the property 'Anytype1'
+        }
+
+        /// <summary>
+        /// Test the property 'MapWithUndeclaredPropertiesAnytype1'
+        /// </summary>
+        [Fact]
+        public void MapWithUndeclaredPropertiesAnytype1Test()
+        {
+            // TODO unit test for the property 'MapWithUndeclaredPropertiesAnytype1'
+        }
+
+        /// <summary>
+        /// Test the property 'MapWithUndeclaredPropertiesAnytype2'
+        /// </summary>
+        [Fact]
+        public void MapWithUndeclaredPropertiesAnytype2Test()
+        {
+            // TODO unit test for the property 'MapWithUndeclaredPropertiesAnytype2'
+        }
+
+        /// <summary>
+        /// Test the property 'MapWithUndeclaredPropertiesAnytype3'
+        /// </summary>
+        [Fact]
+        public void MapWithUndeclaredPropertiesAnytype3Test()
+        {
+            // TODO unit test for the property 'MapWithUndeclaredPropertiesAnytype3'
+        }
+
+        /// <summary>
+        /// Test the property 'EmptyMap'
+        /// </summary>
+        [Fact]
+        public void EmptyMapTest()
+        {
+            // TODO unit test for the property 'EmptyMap'
+        }
+
+        /// <summary>
+        /// Test the property 'MapWithUndeclaredPropertiesString'
+        /// </summary>
+        [Fact]
+        public void MapWithUndeclaredPropertiesStringTest()
+        {
+            // TODO unit test for the property 'MapWithUndeclaredPropertiesString'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AnimalTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AnimalTests.cs
new file mode 100644
index 00000000000..0bc46ab7f47
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AnimalTests.cs
@@ -0,0 +1,95 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Animal
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class AnimalTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Animal
+        //private Animal instance;
+
+        public AnimalTests()
+        {
+            // TODO uncomment below to create an instance of Animal
+            //instance = new Animal();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Animal
+        /// </summary>
+        [Fact]
+        public void AnimalInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Animal
+            //Assert.IsType<Animal>(instance);
+        }
+
+        /// <summary>
+        /// Test deserialize a Cat from type Animal
+        /// </summary>
+        [Fact]
+        public void CatDeserializeFromAnimalTest()
+        {
+            // TODO uncomment below to test deserialize a Cat from type Animal
+            //Assert.IsType<Animal>(JsonConvert.DeserializeObject<Animal>(new Cat().ToJson()));
+        }
+
+        /// <summary>
+        /// Test deserialize a Dog from type Animal
+        /// </summary>
+        [Fact]
+        public void DogDeserializeFromAnimalTest()
+        {
+            // TODO uncomment below to test deserialize a Dog from type Animal
+            //Assert.IsType<Animal>(JsonConvert.DeserializeObject<Animal>(new Dog().ToJson()));
+        }
+
+        /// <summary>
+        /// Test the property 'ClassName'
+        /// </summary>
+        [Fact]
+        public void ClassNameTest()
+        {
+            // TODO unit test for the property 'ClassName'
+        }
+
+        /// <summary>
+        /// Test the property 'Color'
+        /// </summary>
+        [Fact]
+        public void ColorTest()
+        {
+            // TODO unit test for the property 'Color'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ApiResponseTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ApiResponseTests.cs
new file mode 100644
index 00000000000..901c6a02965
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ApiResponseTests.cs
@@ -0,0 +1,84 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ApiResponse
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ApiResponseTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ApiResponse
+        //private ApiResponse instance;
+
+        public ApiResponseTests()
+        {
+            // TODO uncomment below to create an instance of ApiResponse
+            //instance = new ApiResponse();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ApiResponse
+        /// </summary>
+        [Fact]
+        public void ApiResponseInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ApiResponse
+            //Assert.IsType<ApiResponse>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Code'
+        /// </summary>
+        [Fact]
+        public void CodeTest()
+        {
+            // TODO unit test for the property 'Code'
+        }
+
+        /// <summary>
+        /// Test the property 'Type'
+        /// </summary>
+        [Fact]
+        public void TypeTest()
+        {
+            // TODO unit test for the property 'Type'
+        }
+
+        /// <summary>
+        /// Test the property 'Message'
+        /// </summary>
+        [Fact]
+        public void MessageTest()
+        {
+            // TODO unit test for the property 'Message'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AppleReqTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AppleReqTests.cs
new file mode 100644
index 00000000000..94d06c61e23
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AppleReqTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing AppleReq
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class AppleReqTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for AppleReq
+        //private AppleReq instance;
+
+        public AppleReqTests()
+        {
+            // TODO uncomment below to create an instance of AppleReq
+            //instance = new AppleReq();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of AppleReq
+        /// </summary>
+        [Fact]
+        public void AppleReqInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" AppleReq
+            //Assert.IsType<AppleReq>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Cultivar'
+        /// </summary>
+        [Fact]
+        public void CultivarTest()
+        {
+            // TODO unit test for the property 'Cultivar'
+        }
+
+        /// <summary>
+        /// Test the property 'Mealy'
+        /// </summary>
+        [Fact]
+        public void MealyTest()
+        {
+            // TODO unit test for the property 'Mealy'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AppleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AppleTests.cs
new file mode 100644
index 00000000000..b3aa7e34f8d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/AppleTests.cs
@@ -0,0 +1,84 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Apple
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class AppleTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Apple
+        //private Apple instance;
+
+        public AppleTests()
+        {
+            // TODO uncomment below to create an instance of Apple
+            //instance = new Apple();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Apple
+        /// </summary>
+        [Fact]
+        public void AppleInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Apple
+            //Assert.IsType<Apple>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Cultivar'
+        /// </summary>
+        [Fact]
+        public void CultivarTest()
+        {
+            // TODO unit test for the property 'Cultivar'
+        }
+
+        /// <summary>
+        /// Test the property 'Origin'
+        /// </summary>
+        [Fact]
+        public void OriginTest()
+        {
+            // TODO unit test for the property 'Origin'
+        }
+
+        /// <summary>
+        /// Test the property 'ColorCode'
+        /// </summary>
+        [Fact]
+        public void ColorCodeTest()
+        {
+            // TODO unit test for the property 'ColorCode'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayOfArrayOfNumberOnlyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayOfArrayOfNumberOnlyTests.cs
new file mode 100644
index 00000000000..d52b1938e42
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayOfArrayOfNumberOnlyTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ArrayOfArrayOfNumberOnly
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ArrayOfArrayOfNumberOnlyTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ArrayOfArrayOfNumberOnly
+        //private ArrayOfArrayOfNumberOnly instance;
+
+        public ArrayOfArrayOfNumberOnlyTests()
+        {
+            // TODO uncomment below to create an instance of ArrayOfArrayOfNumberOnly
+            //instance = new ArrayOfArrayOfNumberOnly();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ArrayOfArrayOfNumberOnly
+        /// </summary>
+        [Fact]
+        public void ArrayOfArrayOfNumberOnlyInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ArrayOfArrayOfNumberOnly
+            //Assert.IsType<ArrayOfArrayOfNumberOnly>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayArrayNumber'
+        /// </summary>
+        [Fact]
+        public void ArrayArrayNumberTest()
+        {
+            // TODO unit test for the property 'ArrayArrayNumber'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayOfNumberOnlyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayOfNumberOnlyTests.cs
new file mode 100644
index 00000000000..421bfd6caea
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayOfNumberOnlyTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ArrayOfNumberOnly
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ArrayOfNumberOnlyTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ArrayOfNumberOnly
+        //private ArrayOfNumberOnly instance;
+
+        public ArrayOfNumberOnlyTests()
+        {
+            // TODO uncomment below to create an instance of ArrayOfNumberOnly
+            //instance = new ArrayOfNumberOnly();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ArrayOfNumberOnly
+        /// </summary>
+        [Fact]
+        public void ArrayOfNumberOnlyInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ArrayOfNumberOnly
+            //Assert.IsType<ArrayOfNumberOnly>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayNumber'
+        /// </summary>
+        [Fact]
+        public void ArrayNumberTest()
+        {
+            // TODO unit test for the property 'ArrayNumber'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayTestTests.cs
new file mode 100644
index 00000000000..5028c715b98
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ArrayTestTests.cs
@@ -0,0 +1,84 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ArrayTest
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ArrayTestTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ArrayTest
+        //private ArrayTest instance;
+
+        public ArrayTestTests()
+        {
+            // TODO uncomment below to create an instance of ArrayTest
+            //instance = new ArrayTest();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ArrayTest
+        /// </summary>
+        [Fact]
+        public void ArrayTestInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ArrayTest
+            //Assert.IsType<ArrayTest>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayOfString'
+        /// </summary>
+        [Fact]
+        public void ArrayOfStringTest()
+        {
+            // TODO unit test for the property 'ArrayOfString'
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayArrayOfInteger'
+        /// </summary>
+        [Fact]
+        public void ArrayArrayOfIntegerTest()
+        {
+            // TODO unit test for the property 'ArrayArrayOfInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayArrayOfModel'
+        /// </summary>
+        [Fact]
+        public void ArrayArrayOfModelTest()
+        {
+            // TODO unit test for the property 'ArrayArrayOfModel'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BananaReqTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BananaReqTests.cs
new file mode 100644
index 00000000000..8242ff9e796
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BananaReqTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing BananaReq
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class BananaReqTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for BananaReq
+        //private BananaReq instance;
+
+        public BananaReqTests()
+        {
+            // TODO uncomment below to create an instance of BananaReq
+            //instance = new BananaReq();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of BananaReq
+        /// </summary>
+        [Fact]
+        public void BananaReqInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" BananaReq
+            //Assert.IsType<BananaReq>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'LengthCm'
+        /// </summary>
+        [Fact]
+        public void LengthCmTest()
+        {
+            // TODO unit test for the property 'LengthCm'
+        }
+
+        /// <summary>
+        /// Test the property 'Sweet'
+        /// </summary>
+        [Fact]
+        public void SweetTest()
+        {
+            // TODO unit test for the property 'Sweet'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BananaTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BananaTests.cs
new file mode 100644
index 00000000000..ddcea686eee
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BananaTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Banana
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class BananaTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Banana
+        //private Banana instance;
+
+        public BananaTests()
+        {
+            // TODO uncomment below to create an instance of Banana
+            //instance = new Banana();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Banana
+        /// </summary>
+        [Fact]
+        public void BananaInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Banana
+            //Assert.IsType<Banana>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'LengthCm'
+        /// </summary>
+        [Fact]
+        public void LengthCmTest()
+        {
+            // TODO unit test for the property 'LengthCm'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BasquePigTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BasquePigTests.cs
new file mode 100644
index 00000000000..9cb45c006e6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/BasquePigTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing BasquePig
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class BasquePigTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for BasquePig
+        //private BasquePig instance;
+
+        public BasquePigTests()
+        {
+            // TODO uncomment below to create an instance of BasquePig
+            //instance = new BasquePig();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of BasquePig
+        /// </summary>
+        [Fact]
+        public void BasquePigInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" BasquePig
+            //Assert.IsType<BasquePig>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ClassName'
+        /// </summary>
+        [Fact]
+        public void ClassNameTest()
+        {
+            // TODO unit test for the property 'ClassName'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CapitalizationTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CapitalizationTests.cs
new file mode 100644
index 00000000000..9e6a400d1ed
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CapitalizationTests.cs
@@ -0,0 +1,111 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Capitalization
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class CapitalizationTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Capitalization
+        //private Capitalization instance;
+
+        public CapitalizationTests()
+        {
+            // TODO uncomment below to create an instance of Capitalization
+            //instance = new Capitalization();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Capitalization
+        /// </summary>
+        [Fact]
+        public void CapitalizationInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Capitalization
+            //Assert.IsType<Capitalization>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'SmallCamel'
+        /// </summary>
+        [Fact]
+        public void SmallCamelTest()
+        {
+            // TODO unit test for the property 'SmallCamel'
+        }
+
+        /// <summary>
+        /// Test the property 'CapitalCamel'
+        /// </summary>
+        [Fact]
+        public void CapitalCamelTest()
+        {
+            // TODO unit test for the property 'CapitalCamel'
+        }
+
+        /// <summary>
+        /// Test the property 'SmallSnake'
+        /// </summary>
+        [Fact]
+        public void SmallSnakeTest()
+        {
+            // TODO unit test for the property 'SmallSnake'
+        }
+
+        /// <summary>
+        /// Test the property 'CapitalSnake'
+        /// </summary>
+        [Fact]
+        public void CapitalSnakeTest()
+        {
+            // TODO unit test for the property 'CapitalSnake'
+        }
+
+        /// <summary>
+        /// Test the property 'SCAETHFlowPoints'
+        /// </summary>
+        [Fact]
+        public void SCAETHFlowPointsTest()
+        {
+            // TODO unit test for the property 'SCAETHFlowPoints'
+        }
+
+        /// <summary>
+        /// Test the property 'ATT_NAME'
+        /// </summary>
+        [Fact]
+        public void ATT_NAMETest()
+        {
+            // TODO unit test for the property 'ATT_NAME'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CatTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CatTests.cs
new file mode 100644
index 00000000000..c1b10d32171
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CatTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Cat
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class CatTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Cat
+        //private Cat instance;
+
+        public CatTests()
+        {
+            // TODO uncomment below to create an instance of Cat
+            //instance = new Cat();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Cat
+        /// </summary>
+        [Fact]
+        public void CatInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Cat
+            //Assert.IsType<Cat>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Declawed'
+        /// </summary>
+        [Fact]
+        public void DeclawedTest()
+        {
+            // TODO unit test for the property 'Declawed'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CategoryTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CategoryTests.cs
new file mode 100644
index 00000000000..d1ef6186244
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/CategoryTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Category
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class CategoryTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Category
+        //private Category instance;
+
+        public CategoryTests()
+        {
+            // TODO uncomment below to create an instance of Category
+            //instance = new Category();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Category
+        /// </summary>
+        [Fact]
+        public void CategoryInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Category
+            //Assert.IsType<Category>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Id'
+        /// </summary>
+        [Fact]
+        public void IdTest()
+        {
+            // TODO unit test for the property 'Id'
+        }
+
+        /// <summary>
+        /// Test the property 'Name'
+        /// </summary>
+        [Fact]
+        public void NameTest()
+        {
+            // TODO unit test for the property 'Name'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ChildCatTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ChildCatTests.cs
new file mode 100644
index 00000000000..b40a42cb022
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ChildCatTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ChildCat
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ChildCatTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ChildCat
+        //private ChildCat instance;
+
+        public ChildCatTests()
+        {
+            // TODO uncomment below to create an instance of ChildCat
+            //instance = new ChildCat();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ChildCat
+        /// </summary>
+        [Fact]
+        public void ChildCatInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ChildCat
+            //Assert.IsType<ChildCat>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Name'
+        /// </summary>
+        [Fact]
+        public void NameTest()
+        {
+            // TODO unit test for the property 'Name'
+        }
+
+        /// <summary>
+        /// Test the property 'PetType'
+        /// </summary>
+        [Fact]
+        public void PetTypeTest()
+        {
+            // TODO unit test for the property 'PetType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ClassModelTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ClassModelTests.cs
new file mode 100644
index 00000000000..fda5d89d20b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ClassModelTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ClassModel
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ClassModelTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ClassModel
+        //private ClassModel instance;
+
+        public ClassModelTests()
+        {
+            // TODO uncomment below to create an instance of ClassModel
+            //instance = new ClassModel();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ClassModel
+        /// </summary>
+        [Fact]
+        public void ClassModelInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ClassModel
+            //Assert.IsType<ClassModel>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'VarClass'
+        /// </summary>
+        [Fact]
+        public void VarClassTest()
+        {
+            // TODO unit test for the property 'VarClass'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ComplexQuadrilateralTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ComplexQuadrilateralTests.cs
new file mode 100644
index 00000000000..835c5b87bc6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ComplexQuadrilateralTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ComplexQuadrilateral
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ComplexQuadrilateralTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ComplexQuadrilateral
+        //private ComplexQuadrilateral instance;
+
+        public ComplexQuadrilateralTests()
+        {
+            // TODO uncomment below to create an instance of ComplexQuadrilateral
+            //instance = new ComplexQuadrilateral();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ComplexQuadrilateral
+        /// </summary>
+        [Fact]
+        public void ComplexQuadrilateralInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ComplexQuadrilateral
+            //Assert.IsType<ComplexQuadrilateral>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'QuadrilateralType'
+        /// </summary>
+        [Fact]
+        public void QuadrilateralTypeTest()
+        {
+            // TODO unit test for the property 'QuadrilateralType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DanishPigTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DanishPigTests.cs
new file mode 100644
index 00000000000..765496ea0ce
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DanishPigTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing DanishPig
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class DanishPigTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for DanishPig
+        //private DanishPig instance;
+
+        public DanishPigTests()
+        {
+            // TODO uncomment below to create an instance of DanishPig
+            //instance = new DanishPig();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of DanishPig
+        /// </summary>
+        [Fact]
+        public void DanishPigInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" DanishPig
+            //Assert.IsType<DanishPig>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ClassName'
+        /// </summary>
+        [Fact]
+        public void ClassNameTest()
+        {
+            // TODO unit test for the property 'ClassName'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DateOnlyClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DateOnlyClassTests.cs
new file mode 100644
index 00000000000..67be10782ef
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DateOnlyClassTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing DateOnlyClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class DateOnlyClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for DateOnlyClass
+        //private DateOnlyClass instance;
+
+        public DateOnlyClassTests()
+        {
+            // TODO uncomment below to create an instance of DateOnlyClass
+            //instance = new DateOnlyClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of DateOnlyClass
+        /// </summary>
+        [Fact]
+        public void DateOnlyClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" DateOnlyClass
+            //Assert.IsType<DateOnlyClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'DateOnlyProperty'
+        /// </summary>
+        [Fact]
+        public void DateOnlyPropertyTest()
+        {
+            // TODO unit test for the property 'DateOnlyProperty'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DeprecatedObjectTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DeprecatedObjectTests.cs
new file mode 100644
index 00000000000..be6b35dbf45
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DeprecatedObjectTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing DeprecatedObject
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class DeprecatedObjectTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for DeprecatedObject
+        //private DeprecatedObject instance;
+
+        public DeprecatedObjectTests()
+        {
+            // TODO uncomment below to create an instance of DeprecatedObject
+            //instance = new DeprecatedObject();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of DeprecatedObject
+        /// </summary>
+        [Fact]
+        public void DeprecatedObjectInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" DeprecatedObject
+            //Assert.IsType<DeprecatedObject>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Name'
+        /// </summary>
+        [Fact]
+        public void NameTest()
+        {
+            // TODO unit test for the property 'Name'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DogTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DogTests.cs
new file mode 100644
index 00000000000..a00de64ef51
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DogTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Dog
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class DogTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Dog
+        //private Dog instance;
+
+        public DogTests()
+        {
+            // TODO uncomment below to create an instance of Dog
+            //instance = new Dog();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Dog
+        /// </summary>
+        [Fact]
+        public void DogInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Dog
+            //Assert.IsType<Dog>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Breed'
+        /// </summary>
+        [Fact]
+        public void BreedTest()
+        {
+            // TODO unit test for the property 'Breed'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DrawingTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DrawingTests.cs
new file mode 100644
index 00000000000..3b1308e5051
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/DrawingTests.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Drawing
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class DrawingTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Drawing
+        //private Drawing instance;
+
+        public DrawingTests()
+        {
+            // TODO uncomment below to create an instance of Drawing
+            //instance = new Drawing();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Drawing
+        /// </summary>
+        [Fact]
+        public void DrawingInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Drawing
+            //Assert.IsType<Drawing>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'MainShape'
+        /// </summary>
+        [Fact]
+        public void MainShapeTest()
+        {
+            // TODO unit test for the property 'MainShape'
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeOrNull'
+        /// </summary>
+        [Fact]
+        public void ShapeOrNullTest()
+        {
+            // TODO unit test for the property 'ShapeOrNull'
+        }
+
+        /// <summary>
+        /// Test the property 'NullableShape'
+        /// </summary>
+        [Fact]
+        public void NullableShapeTest()
+        {
+            // TODO unit test for the property 'NullableShape'
+        }
+
+        /// <summary>
+        /// Test the property 'Shapes'
+        /// </summary>
+        [Fact]
+        public void ShapesTest()
+        {
+            // TODO unit test for the property 'Shapes'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumArraysTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumArraysTests.cs
new file mode 100644
index 00000000000..6fcfa6f448c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumArraysTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing EnumArrays
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class EnumArraysTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for EnumArrays
+        //private EnumArrays instance;
+
+        public EnumArraysTests()
+        {
+            // TODO uncomment below to create an instance of EnumArrays
+            //instance = new EnumArrays();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of EnumArrays
+        /// </summary>
+        [Fact]
+        public void EnumArraysInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" EnumArrays
+            //Assert.IsType<EnumArrays>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'JustSymbol'
+        /// </summary>
+        [Fact]
+        public void JustSymbolTest()
+        {
+            // TODO unit test for the property 'JustSymbol'
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayEnum'
+        /// </summary>
+        [Fact]
+        public void ArrayEnumTest()
+        {
+            // TODO unit test for the property 'ArrayEnum'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumClassTests.cs
new file mode 100644
index 00000000000..bb46e292a65
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumClassTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing EnumClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class EnumClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for EnumClass
+        //private EnumClass instance;
+
+        public EnumClassTests()
+        {
+            // TODO uncomment below to create an instance of EnumClass
+            //instance = new EnumClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of EnumClass
+        /// </summary>
+        [Fact]
+        public void EnumClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" EnumClass
+            //Assert.IsType<EnumClass>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumTestTests.cs
new file mode 100644
index 00000000000..3050af44241
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EnumTestTests.cs
@@ -0,0 +1,138 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing EnumTest
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class EnumTestTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for EnumTest
+        //private EnumTest instance;
+
+        public EnumTestTests()
+        {
+            // TODO uncomment below to create an instance of EnumTest
+            //instance = new EnumTest();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of EnumTest
+        /// </summary>
+        [Fact]
+        public void EnumTestInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" EnumTest
+            //Assert.IsType<EnumTest>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'EnumString'
+        /// </summary>
+        [Fact]
+        public void EnumStringTest()
+        {
+            // TODO unit test for the property 'EnumString'
+        }
+
+        /// <summary>
+        /// Test the property 'EnumStringRequired'
+        /// </summary>
+        [Fact]
+        public void EnumStringRequiredTest()
+        {
+            // TODO unit test for the property 'EnumStringRequired'
+        }
+
+        /// <summary>
+        /// Test the property 'EnumInteger'
+        /// </summary>
+        [Fact]
+        public void EnumIntegerTest()
+        {
+            // TODO unit test for the property 'EnumInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'EnumIntegerOnly'
+        /// </summary>
+        [Fact]
+        public void EnumIntegerOnlyTest()
+        {
+            // TODO unit test for the property 'EnumIntegerOnly'
+        }
+
+        /// <summary>
+        /// Test the property 'EnumNumber'
+        /// </summary>
+        [Fact]
+        public void EnumNumberTest()
+        {
+            // TODO unit test for the property 'EnumNumber'
+        }
+
+        /// <summary>
+        /// Test the property 'OuterEnum'
+        /// </summary>
+        [Fact]
+        public void OuterEnumTest()
+        {
+            // TODO unit test for the property 'OuterEnum'
+        }
+
+        /// <summary>
+        /// Test the property 'OuterEnumInteger'
+        /// </summary>
+        [Fact]
+        public void OuterEnumIntegerTest()
+        {
+            // TODO unit test for the property 'OuterEnumInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'OuterEnumDefaultValue'
+        /// </summary>
+        [Fact]
+        public void OuterEnumDefaultValueTest()
+        {
+            // TODO unit test for the property 'OuterEnumDefaultValue'
+        }
+
+        /// <summary>
+        /// Test the property 'OuterEnumIntegerDefaultValue'
+        /// </summary>
+        [Fact]
+        public void OuterEnumIntegerDefaultValueTest()
+        {
+            // TODO unit test for the property 'OuterEnumIntegerDefaultValue'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EquilateralTriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EquilateralTriangleTests.cs
new file mode 100644
index 00000000000..71d48f7e200
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/EquilateralTriangleTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing EquilateralTriangle
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class EquilateralTriangleTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for EquilateralTriangle
+        //private EquilateralTriangle instance;
+
+        public EquilateralTriangleTests()
+        {
+            // TODO uncomment below to create an instance of EquilateralTriangle
+            //instance = new EquilateralTriangle();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of EquilateralTriangle
+        /// </summary>
+        [Fact]
+        public void EquilateralTriangleInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" EquilateralTriangle
+            //Assert.IsType<EquilateralTriangle>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'TriangleType'
+        /// </summary>
+        [Fact]
+        public void TriangleTypeTest()
+        {
+            // TODO unit test for the property 'TriangleType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FileSchemaTestClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FileSchemaTestClassTests.cs
new file mode 100644
index 00000000000..d89ad5a5bc7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FileSchemaTestClassTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing FileSchemaTestClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class FileSchemaTestClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for FileSchemaTestClass
+        //private FileSchemaTestClass instance;
+
+        public FileSchemaTestClassTests()
+        {
+            // TODO uncomment below to create an instance of FileSchemaTestClass
+            //instance = new FileSchemaTestClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of FileSchemaTestClass
+        /// </summary>
+        [Fact]
+        public void FileSchemaTestClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" FileSchemaTestClass
+            //Assert.IsType<FileSchemaTestClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'File'
+        /// </summary>
+        [Fact]
+        public void FileTest()
+        {
+            // TODO unit test for the property 'File'
+        }
+
+        /// <summary>
+        /// Test the property 'Files'
+        /// </summary>
+        [Fact]
+        public void FilesTest()
+        {
+            // TODO unit test for the property 'Files'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FileTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FileTests.cs
new file mode 100644
index 00000000000..7eaea9c8786
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FileTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing File
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class FileTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for File
+        //private File instance;
+
+        public FileTests()
+        {
+            // TODO uncomment below to create an instance of File
+            //instance = new File();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of File
+        /// </summary>
+        [Fact]
+        public void FileInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" File
+            //Assert.IsType<File>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'SourceURI'
+        /// </summary>
+        [Fact]
+        public void SourceURITest()
+        {
+            // TODO unit test for the property 'SourceURI'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FooGetDefaultResponseTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FooGetDefaultResponseTests.cs
new file mode 100644
index 00000000000..1968c5ba85f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FooGetDefaultResponseTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing FooGetDefaultResponse
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class FooGetDefaultResponseTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for FooGetDefaultResponse
+        //private FooGetDefaultResponse instance;
+
+        public FooGetDefaultResponseTests()
+        {
+            // TODO uncomment below to create an instance of FooGetDefaultResponse
+            //instance = new FooGetDefaultResponse();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of FooGetDefaultResponse
+        /// </summary>
+        [Fact]
+        public void FooGetDefaultResponseInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" FooGetDefaultResponse
+            //Assert.IsType<FooGetDefaultResponse>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'VarString'
+        /// </summary>
+        [Fact]
+        public void VarStringTest()
+        {
+            // TODO unit test for the property 'VarString'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FooTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FooTests.cs
new file mode 100644
index 00000000000..52f87dd5b0e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FooTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Foo
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class FooTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Foo
+        //private Foo instance;
+
+        public FooTests()
+        {
+            // TODO uncomment below to create an instance of Foo
+            //instance = new Foo();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Foo
+        /// </summary>
+        [Fact]
+        public void FooInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Foo
+            //Assert.IsType<Foo>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Bar'
+        /// </summary>
+        [Fact]
+        public void BarTest()
+        {
+            // TODO unit test for the property 'Bar'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FormatTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FormatTestTests.cs
new file mode 100644
index 00000000000..80319b9c1a7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FormatTestTests.cs
@@ -0,0 +1,228 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing FormatTest
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class FormatTestTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for FormatTest
+        //private FormatTest instance;
+
+        public FormatTestTests()
+        {
+            // TODO uncomment below to create an instance of FormatTest
+            //instance = new FormatTest();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of FormatTest
+        /// </summary>
+        [Fact]
+        public void FormatTestInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" FormatTest
+            //Assert.IsType<FormatTest>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Integer'
+        /// </summary>
+        [Fact]
+        public void IntegerTest()
+        {
+            // TODO unit test for the property 'Integer'
+        }
+
+        /// <summary>
+        /// Test the property 'Int32'
+        /// </summary>
+        [Fact]
+        public void Int32Test()
+        {
+            // TODO unit test for the property 'Int32'
+        }
+
+        /// <summary>
+        /// Test the property 'UnsignedInteger'
+        /// </summary>
+        [Fact]
+        public void UnsignedIntegerTest()
+        {
+            // TODO unit test for the property 'UnsignedInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'Int64'
+        /// </summary>
+        [Fact]
+        public void Int64Test()
+        {
+            // TODO unit test for the property 'Int64'
+        }
+
+        /// <summary>
+        /// Test the property 'UnsignedLong'
+        /// </summary>
+        [Fact]
+        public void UnsignedLongTest()
+        {
+            // TODO unit test for the property 'UnsignedLong'
+        }
+
+        /// <summary>
+        /// Test the property 'Number'
+        /// </summary>
+        [Fact]
+        public void NumberTest()
+        {
+            // TODO unit test for the property 'Number'
+        }
+
+        /// <summary>
+        /// Test the property 'VarFloat'
+        /// </summary>
+        [Fact]
+        public void VarFloatTest()
+        {
+            // TODO unit test for the property 'VarFloat'
+        }
+
+        /// <summary>
+        /// Test the property 'VarDouble'
+        /// </summary>
+        [Fact]
+        public void VarDoubleTest()
+        {
+            // TODO unit test for the property 'VarDouble'
+        }
+
+        /// <summary>
+        /// Test the property 'VarDecimal'
+        /// </summary>
+        [Fact]
+        public void VarDecimalTest()
+        {
+            // TODO unit test for the property 'VarDecimal'
+        }
+
+        /// <summary>
+        /// Test the property 'VarString'
+        /// </summary>
+        [Fact]
+        public void VarStringTest()
+        {
+            // TODO unit test for the property 'VarString'
+        }
+
+        /// <summary>
+        /// Test the property 'VarByte'
+        /// </summary>
+        [Fact]
+        public void VarByteTest()
+        {
+            // TODO unit test for the property 'VarByte'
+        }
+
+        /// <summary>
+        /// Test the property 'Binary'
+        /// </summary>
+        [Fact]
+        public void BinaryTest()
+        {
+            // TODO unit test for the property 'Binary'
+        }
+
+        /// <summary>
+        /// Test the property 'Date'
+        /// </summary>
+        [Fact]
+        public void DateTest()
+        {
+            // TODO unit test for the property 'Date'
+        }
+
+        /// <summary>
+        /// Test the property 'DateTime'
+        /// </summary>
+        [Fact]
+        public void DateTimeTest()
+        {
+            // TODO unit test for the property 'DateTime'
+        }
+
+        /// <summary>
+        /// Test the property 'Uuid'
+        /// </summary>
+        [Fact]
+        public void UuidTest()
+        {
+            // TODO unit test for the property 'Uuid'
+        }
+
+        /// <summary>
+        /// Test the property 'Password'
+        /// </summary>
+        [Fact]
+        public void PasswordTest()
+        {
+            // TODO unit test for the property 'Password'
+        }
+
+        /// <summary>
+        /// Test the property 'PatternWithDigits'
+        /// </summary>
+        [Fact]
+        public void PatternWithDigitsTest()
+        {
+            // TODO unit test for the property 'PatternWithDigits'
+        }
+
+        /// <summary>
+        /// Test the property 'PatternWithDigitsAndDelimiter'
+        /// </summary>
+        [Fact]
+        public void PatternWithDigitsAndDelimiterTest()
+        {
+            // TODO unit test for the property 'PatternWithDigitsAndDelimiter'
+        }
+
+        /// <summary>
+        /// Test the property 'PatternWithBackslash'
+        /// </summary>
+        [Fact]
+        public void PatternWithBackslashTest()
+        {
+            // TODO unit test for the property 'PatternWithBackslash'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FruitReqTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FruitReqTests.cs
new file mode 100644
index 00000000000..771ef1ae2c5
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FruitReqTests.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing FruitReq
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class FruitReqTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for FruitReq
+        //private FruitReq instance;
+
+        public FruitReqTests()
+        {
+            // TODO uncomment below to create an instance of FruitReq
+            //instance = new FruitReq();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of FruitReq
+        /// </summary>
+        [Fact]
+        public void FruitReqInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" FruitReq
+            //Assert.IsType<FruitReq>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Cultivar'
+        /// </summary>
+        [Fact]
+        public void CultivarTest()
+        {
+            // TODO unit test for the property 'Cultivar'
+        }
+
+        /// <summary>
+        /// Test the property 'Mealy'
+        /// </summary>
+        [Fact]
+        public void MealyTest()
+        {
+            // TODO unit test for the property 'Mealy'
+        }
+
+        /// <summary>
+        /// Test the property 'LengthCm'
+        /// </summary>
+        [Fact]
+        public void LengthCmTest()
+        {
+            // TODO unit test for the property 'LengthCm'
+        }
+
+        /// <summary>
+        /// Test the property 'Sweet'
+        /// </summary>
+        [Fact]
+        public void SweetTest()
+        {
+            // TODO unit test for the property 'Sweet'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FruitTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FruitTests.cs
new file mode 100644
index 00000000000..53881a33319
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/FruitTests.cs
@@ -0,0 +1,102 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Fruit
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class FruitTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Fruit
+        //private Fruit instance;
+
+        public FruitTests()
+        {
+            // TODO uncomment below to create an instance of Fruit
+            //instance = new Fruit();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Fruit
+        /// </summary>
+        [Fact]
+        public void FruitInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Fruit
+            //Assert.IsType<Fruit>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Color'
+        /// </summary>
+        [Fact]
+        public void ColorTest()
+        {
+            // TODO unit test for the property 'Color'
+        }
+
+        /// <summary>
+        /// Test the property 'Cultivar'
+        /// </summary>
+        [Fact]
+        public void CultivarTest()
+        {
+            // TODO unit test for the property 'Cultivar'
+        }
+
+        /// <summary>
+        /// Test the property 'Origin'
+        /// </summary>
+        [Fact]
+        public void OriginTest()
+        {
+            // TODO unit test for the property 'Origin'
+        }
+
+        /// <summary>
+        /// Test the property 'ColorCode'
+        /// </summary>
+        [Fact]
+        public void ColorCodeTest()
+        {
+            // TODO unit test for the property 'ColorCode'
+        }
+
+        /// <summary>
+        /// Test the property 'LengthCm'
+        /// </summary>
+        [Fact]
+        public void LengthCmTest()
+        {
+            // TODO unit test for the property 'LengthCm'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/GmFruitTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/GmFruitTests.cs
new file mode 100644
index 00000000000..6322d4e2a72
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/GmFruitTests.cs
@@ -0,0 +1,102 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing GmFruit
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class GmFruitTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for GmFruit
+        //private GmFruit instance;
+
+        public GmFruitTests()
+        {
+            // TODO uncomment below to create an instance of GmFruit
+            //instance = new GmFruit();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of GmFruit
+        /// </summary>
+        [Fact]
+        public void GmFruitInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" GmFruit
+            //Assert.IsType<GmFruit>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Color'
+        /// </summary>
+        [Fact]
+        public void ColorTest()
+        {
+            // TODO unit test for the property 'Color'
+        }
+
+        /// <summary>
+        /// Test the property 'Cultivar'
+        /// </summary>
+        [Fact]
+        public void CultivarTest()
+        {
+            // TODO unit test for the property 'Cultivar'
+        }
+
+        /// <summary>
+        /// Test the property 'Origin'
+        /// </summary>
+        [Fact]
+        public void OriginTest()
+        {
+            // TODO unit test for the property 'Origin'
+        }
+
+        /// <summary>
+        /// Test the property 'ColorCode'
+        /// </summary>
+        [Fact]
+        public void ColorCodeTest()
+        {
+            // TODO unit test for the property 'ColorCode'
+        }
+
+        /// <summary>
+        /// Test the property 'LengthCm'
+        /// </summary>
+        [Fact]
+        public void LengthCmTest()
+        {
+            // TODO unit test for the property 'LengthCm'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/GrandparentAnimalTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/GrandparentAnimalTests.cs
new file mode 100644
index 00000000000..3adc2a0573e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/GrandparentAnimalTests.cs
@@ -0,0 +1,86 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing GrandparentAnimal
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class GrandparentAnimalTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for GrandparentAnimal
+        //private GrandparentAnimal instance;
+
+        public GrandparentAnimalTests()
+        {
+            // TODO uncomment below to create an instance of GrandparentAnimal
+            //instance = new GrandparentAnimal();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of GrandparentAnimal
+        /// </summary>
+        [Fact]
+        public void GrandparentAnimalInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" GrandparentAnimal
+            //Assert.IsType<GrandparentAnimal>(instance);
+        }
+
+        /// <summary>
+        /// Test deserialize a ChildCat from type ParentPet
+        /// </summary>
+        [Fact]
+        public void ChildCatDeserializeFromParentPetTest()
+        {
+            // TODO uncomment below to test deserialize a ChildCat from type ParentPet
+            //Assert.IsType<ParentPet>(JsonConvert.DeserializeObject<ParentPet>(new ChildCat().ToJson()));
+        }
+
+        /// <summary>
+        /// Test deserialize a ParentPet from type GrandparentAnimal
+        /// </summary>
+        [Fact]
+        public void ParentPetDeserializeFromGrandparentAnimalTest()
+        {
+            // TODO uncomment below to test deserialize a ParentPet from type GrandparentAnimal
+            //Assert.IsType<GrandparentAnimal>(JsonConvert.DeserializeObject<GrandparentAnimal>(new ParentPet().ToJson()));
+        }
+
+        /// <summary>
+        /// Test the property 'PetType'
+        /// </summary>
+        [Fact]
+        public void PetTypeTest()
+        {
+            // TODO unit test for the property 'PetType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/HasOnlyReadOnlyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/HasOnlyReadOnlyTests.cs
new file mode 100644
index 00000000000..69abe3f9e6a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/HasOnlyReadOnlyTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing HasOnlyReadOnly
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class HasOnlyReadOnlyTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for HasOnlyReadOnly
+        //private HasOnlyReadOnly instance;
+
+        public HasOnlyReadOnlyTests()
+        {
+            // TODO uncomment below to create an instance of HasOnlyReadOnly
+            //instance = new HasOnlyReadOnly();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of HasOnlyReadOnly
+        /// </summary>
+        [Fact]
+        public void HasOnlyReadOnlyInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" HasOnlyReadOnly
+            //Assert.IsType<HasOnlyReadOnly>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Bar'
+        /// </summary>
+        [Fact]
+        public void BarTest()
+        {
+            // TODO unit test for the property 'Bar'
+        }
+
+        /// <summary>
+        /// Test the property 'Foo'
+        /// </summary>
+        [Fact]
+        public void FooTest()
+        {
+            // TODO unit test for the property 'Foo'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/HealthCheckResultTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/HealthCheckResultTests.cs
new file mode 100644
index 00000000000..794fda2c2d6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/HealthCheckResultTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing HealthCheckResult
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class HealthCheckResultTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for HealthCheckResult
+        //private HealthCheckResult instance;
+
+        public HealthCheckResultTests()
+        {
+            // TODO uncomment below to create an instance of HealthCheckResult
+            //instance = new HealthCheckResult();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of HealthCheckResult
+        /// </summary>
+        [Fact]
+        public void HealthCheckResultInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" HealthCheckResult
+            //Assert.IsType<HealthCheckResult>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'NullableMessage'
+        /// </summary>
+        [Fact]
+        public void NullableMessageTest()
+        {
+            // TODO unit test for the property 'NullableMessage'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/IsoscelesTriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/IsoscelesTriangleTests.cs
new file mode 100644
index 00000000000..ca8a058e37d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/IsoscelesTriangleTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing IsoscelesTriangle
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class IsoscelesTriangleTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for IsoscelesTriangle
+        //private IsoscelesTriangle instance;
+
+        public IsoscelesTriangleTests()
+        {
+            // TODO uncomment below to create an instance of IsoscelesTriangle
+            //instance = new IsoscelesTriangle();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of IsoscelesTriangle
+        /// </summary>
+        [Fact]
+        public void IsoscelesTriangleInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" IsoscelesTriangle
+            //Assert.IsType<IsoscelesTriangle>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'TriangleType'
+        /// </summary>
+        [Fact]
+        public void TriangleTypeTest()
+        {
+            // TODO unit test for the property 'TriangleType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ListTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ListTests.cs
new file mode 100644
index 00000000000..d659080e89c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ListTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing List
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ListTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for List
+        //private List instance;
+
+        public ListTests()
+        {
+            // TODO uncomment below to create an instance of List
+            //instance = new List();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of List
+        /// </summary>
+        [Fact]
+        public void ListInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" List
+            //Assert.IsType<List>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Var123List'
+        /// </summary>
+        [Fact]
+        public void Var123ListTest()
+        {
+            // TODO unit test for the property 'Var123List'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs
new file mode 100644
index 00000000000..58dc425228f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing LiteralStringClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class LiteralStringClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for LiteralStringClass
+        //private LiteralStringClass instance;
+
+        public LiteralStringClassTests()
+        {
+            // TODO uncomment below to create an instance of LiteralStringClass
+            //instance = new LiteralStringClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of LiteralStringClass
+        /// </summary>
+        [Fact]
+        public void LiteralStringClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" LiteralStringClass
+            //Assert.IsType<LiteralStringClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'EscapedLiteralString'
+        /// </summary>
+        [Fact]
+        public void EscapedLiteralStringTest()
+        {
+            // TODO unit test for the property 'EscapedLiteralString'
+        }
+
+        /// <summary>
+        /// Test the property 'UnescapedLiteralString'
+        /// </summary>
+        [Fact]
+        public void UnescapedLiteralStringTest()
+        {
+            // TODO unit test for the property 'UnescapedLiteralString'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MammalTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MammalTests.cs
new file mode 100644
index 00000000000..3fdadd19646
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MammalTests.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Mammal
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class MammalTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Mammal
+        //private Mammal instance;
+
+        public MammalTests()
+        {
+            // TODO uncomment below to create an instance of Mammal
+            //instance = new Mammal();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Mammal
+        /// </summary>
+        [Fact]
+        public void MammalInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Mammal
+            //Assert.IsType<Mammal>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'HasBaleen'
+        /// </summary>
+        [Fact]
+        public void HasBaleenTest()
+        {
+            // TODO unit test for the property 'HasBaleen'
+        }
+
+        /// <summary>
+        /// Test the property 'HasTeeth'
+        /// </summary>
+        [Fact]
+        public void HasTeethTest()
+        {
+            // TODO unit test for the property 'HasTeeth'
+        }
+
+        /// <summary>
+        /// Test the property 'ClassName'
+        /// </summary>
+        [Fact]
+        public void ClassNameTest()
+        {
+            // TODO unit test for the property 'ClassName'
+        }
+
+        /// <summary>
+        /// Test the property 'Type'
+        /// </summary>
+        [Fact]
+        public void TypeTest()
+        {
+            // TODO unit test for the property 'Type'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MapTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MapTestTests.cs
new file mode 100644
index 00000000000..e055027f15b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MapTestTests.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing MapTest
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class MapTestTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for MapTest
+        //private MapTest instance;
+
+        public MapTestTests()
+        {
+            // TODO uncomment below to create an instance of MapTest
+            //instance = new MapTest();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of MapTest
+        /// </summary>
+        [Fact]
+        public void MapTestInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" MapTest
+            //Assert.IsType<MapTest>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'MapMapOfString'
+        /// </summary>
+        [Fact]
+        public void MapMapOfStringTest()
+        {
+            // TODO unit test for the property 'MapMapOfString'
+        }
+
+        /// <summary>
+        /// Test the property 'MapOfEnumString'
+        /// </summary>
+        [Fact]
+        public void MapOfEnumStringTest()
+        {
+            // TODO unit test for the property 'MapOfEnumString'
+        }
+
+        /// <summary>
+        /// Test the property 'DirectMap'
+        /// </summary>
+        [Fact]
+        public void DirectMapTest()
+        {
+            // TODO unit test for the property 'DirectMap'
+        }
+
+        /// <summary>
+        /// Test the property 'IndirectMap'
+        /// </summary>
+        [Fact]
+        public void IndirectMapTest()
+        {
+            // TODO unit test for the property 'IndirectMap'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MixedPropertiesAndAdditionalPropertiesClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MixedPropertiesAndAdditionalPropertiesClassTests.cs
new file mode 100644
index 00000000000..07c592a8a4c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/MixedPropertiesAndAdditionalPropertiesClassTests.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing MixedPropertiesAndAdditionalPropertiesClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class MixedPropertiesAndAdditionalPropertiesClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for MixedPropertiesAndAdditionalPropertiesClass
+        //private MixedPropertiesAndAdditionalPropertiesClass instance;
+
+        public MixedPropertiesAndAdditionalPropertiesClassTests()
+        {
+            // TODO uncomment below to create an instance of MixedPropertiesAndAdditionalPropertiesClass
+            //instance = new MixedPropertiesAndAdditionalPropertiesClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of MixedPropertiesAndAdditionalPropertiesClass
+        /// </summary>
+        [Fact]
+        public void MixedPropertiesAndAdditionalPropertiesClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" MixedPropertiesAndAdditionalPropertiesClass
+            //Assert.IsType<MixedPropertiesAndAdditionalPropertiesClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'UuidWithPattern'
+        /// </summary>
+        [Fact]
+        public void UuidWithPatternTest()
+        {
+            // TODO unit test for the property 'UuidWithPattern'
+        }
+
+        /// <summary>
+        /// Test the property 'Uuid'
+        /// </summary>
+        [Fact]
+        public void UuidTest()
+        {
+            // TODO unit test for the property 'Uuid'
+        }
+
+        /// <summary>
+        /// Test the property 'DateTime'
+        /// </summary>
+        [Fact]
+        public void DateTimeTest()
+        {
+            // TODO unit test for the property 'DateTime'
+        }
+
+        /// <summary>
+        /// Test the property 'Map'
+        /// </summary>
+        [Fact]
+        public void MapTest()
+        {
+            // TODO unit test for the property 'Map'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/Model200ResponseTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/Model200ResponseTests.cs
new file mode 100644
index 00000000000..c9877ac9a13
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/Model200ResponseTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Model200Response
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class Model200ResponseTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Model200Response
+        //private Model200Response instance;
+
+        public Model200ResponseTests()
+        {
+            // TODO uncomment below to create an instance of Model200Response
+            //instance = new Model200Response();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Model200Response
+        /// </summary>
+        [Fact]
+        public void Model200ResponseInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Model200Response
+            //Assert.IsType<Model200Response>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Name'
+        /// </summary>
+        [Fact]
+        public void NameTest()
+        {
+            // TODO unit test for the property 'Name'
+        }
+
+        /// <summary>
+        /// Test the property 'VarClass'
+        /// </summary>
+        [Fact]
+        public void VarClassTest()
+        {
+            // TODO unit test for the property 'VarClass'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ModelClientTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ModelClientTests.cs
new file mode 100644
index 00000000000..a5f4aa1593e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ModelClientTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ModelClient
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ModelClientTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ModelClient
+        //private ModelClient instance;
+
+        public ModelClientTests()
+        {
+            // TODO uncomment below to create an instance of ModelClient
+            //instance = new ModelClient();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ModelClient
+        /// </summary>
+        [Fact]
+        public void ModelClientInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ModelClient
+            //Assert.IsType<ModelClient>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'VarClient'
+        /// </summary>
+        [Fact]
+        public void VarClientTest()
+        {
+            // TODO unit test for the property 'VarClient'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NameTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NameTests.cs
new file mode 100644
index 00000000000..fc1756b66be
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NameTests.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Name
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class NameTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Name
+        //private Name instance;
+
+        public NameTests()
+        {
+            // TODO uncomment below to create an instance of Name
+            //instance = new Name();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Name
+        /// </summary>
+        [Fact]
+        public void NameInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Name
+            //Assert.IsType<Name>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'VarName'
+        /// </summary>
+        [Fact]
+        public void VarNameTest()
+        {
+            // TODO unit test for the property 'VarName'
+        }
+
+        /// <summary>
+        /// Test the property 'SnakeCase'
+        /// </summary>
+        [Fact]
+        public void SnakeCaseTest()
+        {
+            // TODO unit test for the property 'SnakeCase'
+        }
+
+        /// <summary>
+        /// Test the property 'Property'
+        /// </summary>
+        [Fact]
+        public void PropertyTest()
+        {
+            // TODO unit test for the property 'Property'
+        }
+
+        /// <summary>
+        /// Test the property 'Var123Number'
+        /// </summary>
+        [Fact]
+        public void Var123NumberTest()
+        {
+            // TODO unit test for the property 'Var123Number'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NotificationtestGetElementsV1ResponseMPayloadTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NotificationtestGetElementsV1ResponseMPayloadTests.cs
new file mode 100644
index 00000000000..14e41c5e4d6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NotificationtestGetElementsV1ResponseMPayloadTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing NotificationtestGetElementsV1ResponseMPayload
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class NotificationtestGetElementsV1ResponseMPayloadTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for NotificationtestGetElementsV1ResponseMPayload
+        //private NotificationtestGetElementsV1ResponseMPayload instance;
+
+        public NotificationtestGetElementsV1ResponseMPayloadTests()
+        {
+            // TODO uncomment below to create an instance of NotificationtestGetElementsV1ResponseMPayload
+            //instance = new NotificationtestGetElementsV1ResponseMPayload();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of NotificationtestGetElementsV1ResponseMPayload
+        /// </summary>
+        [Fact]
+        public void NotificationtestGetElementsV1ResponseMPayloadInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" NotificationtestGetElementsV1ResponseMPayload
+            //Assert.IsType<NotificationtestGetElementsV1ResponseMPayload>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'PkiNotificationtestID'
+        /// </summary>
+        [Fact]
+        public void PkiNotificationtestIDTest()
+        {
+            // TODO unit test for the property 'PkiNotificationtestID'
+        }
+
+        /// <summary>
+        /// Test the property 'AObjVariableobject'
+        /// </summary>
+        [Fact]
+        public void AObjVariableobjectTest()
+        {
+            // TODO unit test for the property 'AObjVariableobject'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableClassTests.cs
new file mode 100644
index 00000000000..214795f86c2
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableClassTests.cs
@@ -0,0 +1,165 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing NullableClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class NullableClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for NullableClass
+        //private NullableClass instance;
+
+        public NullableClassTests()
+        {
+            // TODO uncomment below to create an instance of NullableClass
+            //instance = new NullableClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of NullableClass
+        /// </summary>
+        [Fact]
+        public void NullableClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" NullableClass
+            //Assert.IsType<NullableClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'IntegerProp'
+        /// </summary>
+        [Fact]
+        public void IntegerPropTest()
+        {
+            // TODO unit test for the property 'IntegerProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NumberProp'
+        /// </summary>
+        [Fact]
+        public void NumberPropTest()
+        {
+            // TODO unit test for the property 'NumberProp'
+        }
+
+        /// <summary>
+        /// Test the property 'BooleanProp'
+        /// </summary>
+        [Fact]
+        public void BooleanPropTest()
+        {
+            // TODO unit test for the property 'BooleanProp'
+        }
+
+        /// <summary>
+        /// Test the property 'StringProp'
+        /// </summary>
+        [Fact]
+        public void StringPropTest()
+        {
+            // TODO unit test for the property 'StringProp'
+        }
+
+        /// <summary>
+        /// Test the property 'DateProp'
+        /// </summary>
+        [Fact]
+        public void DatePropTest()
+        {
+            // TODO unit test for the property 'DateProp'
+        }
+
+        /// <summary>
+        /// Test the property 'DatetimeProp'
+        /// </summary>
+        [Fact]
+        public void DatetimePropTest()
+        {
+            // TODO unit test for the property 'DatetimeProp'
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayNullableProp'
+        /// </summary>
+        [Fact]
+        public void ArrayNullablePropTest()
+        {
+            // TODO unit test for the property 'ArrayNullableProp'
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayAndItemsNullableProp'
+        /// </summary>
+        [Fact]
+        public void ArrayAndItemsNullablePropTest()
+        {
+            // TODO unit test for the property 'ArrayAndItemsNullableProp'
+        }
+
+        /// <summary>
+        /// Test the property 'ArrayItemsNullable'
+        /// </summary>
+        [Fact]
+        public void ArrayItemsNullableTest()
+        {
+            // TODO unit test for the property 'ArrayItemsNullable'
+        }
+
+        /// <summary>
+        /// Test the property 'ObjectNullableProp'
+        /// </summary>
+        [Fact]
+        public void ObjectNullablePropTest()
+        {
+            // TODO unit test for the property 'ObjectNullableProp'
+        }
+
+        /// <summary>
+        /// Test the property 'ObjectAndItemsNullableProp'
+        /// </summary>
+        [Fact]
+        public void ObjectAndItemsNullablePropTest()
+        {
+            // TODO unit test for the property 'ObjectAndItemsNullableProp'
+        }
+
+        /// <summary>
+        /// Test the property 'ObjectItemsNullable'
+        /// </summary>
+        [Fact]
+        public void ObjectItemsNullableTest()
+        {
+            // TODO unit test for the property 'ObjectItemsNullable'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableGuidClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableGuidClassTests.cs
new file mode 100644
index 00000000000..1290072514c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableGuidClassTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing NullableGuidClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class NullableGuidClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for NullableGuidClass
+        //private NullableGuidClass instance;
+
+        public NullableGuidClassTests()
+        {
+            // TODO uncomment below to create an instance of NullableGuidClass
+            //instance = new NullableGuidClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of NullableGuidClass
+        /// </summary>
+        [Fact]
+        public void NullableGuidClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" NullableGuidClass
+            //Assert.IsType<NullableGuidClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Uuid'
+        /// </summary>
+        [Fact]
+        public void UuidTest()
+        {
+            // TODO unit test for the property 'Uuid'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableShapeTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableShapeTests.cs
new file mode 100644
index 00000000000..75e9c7e8fd4
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NullableShapeTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing NullableShape
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class NullableShapeTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for NullableShape
+        //private NullableShape instance;
+
+        public NullableShapeTests()
+        {
+            // TODO uncomment below to create an instance of NullableShape
+            //instance = new NullableShape();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of NullableShape
+        /// </summary>
+        [Fact]
+        public void NullableShapeInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" NullableShape
+            //Assert.IsType<NullableShape>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'QuadrilateralType'
+        /// </summary>
+        [Fact]
+        public void QuadrilateralTypeTest()
+        {
+            // TODO unit test for the property 'QuadrilateralType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NumberOnlyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NumberOnlyTests.cs
new file mode 100644
index 00000000000..2fb06f9afb4
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/NumberOnlyTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing NumberOnly
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class NumberOnlyTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for NumberOnly
+        //private NumberOnly instance;
+
+        public NumberOnlyTests()
+        {
+            // TODO uncomment below to create an instance of NumberOnly
+            //instance = new NumberOnly();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of NumberOnly
+        /// </summary>
+        [Fact]
+        public void NumberOnlyInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" NumberOnly
+            //Assert.IsType<NumberOnly>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'JustNumber'
+        /// </summary>
+        [Fact]
+        public void JustNumberTest()
+        {
+            // TODO unit test for the property 'JustNumber'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ObjectWithDeprecatedFieldsTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ObjectWithDeprecatedFieldsTests.cs
new file mode 100644
index 00000000000..e90b746d19c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ObjectWithDeprecatedFieldsTests.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ObjectWithDeprecatedFields
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ObjectWithDeprecatedFieldsTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ObjectWithDeprecatedFields
+        //private ObjectWithDeprecatedFields instance;
+
+        public ObjectWithDeprecatedFieldsTests()
+        {
+            // TODO uncomment below to create an instance of ObjectWithDeprecatedFields
+            //instance = new ObjectWithDeprecatedFields();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ObjectWithDeprecatedFields
+        /// </summary>
+        [Fact]
+        public void ObjectWithDeprecatedFieldsInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ObjectWithDeprecatedFields
+            //Assert.IsType<ObjectWithDeprecatedFields>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Uuid'
+        /// </summary>
+        [Fact]
+        public void UuidTest()
+        {
+            // TODO unit test for the property 'Uuid'
+        }
+
+        /// <summary>
+        /// Test the property 'Id'
+        /// </summary>
+        [Fact]
+        public void IdTest()
+        {
+            // TODO unit test for the property 'Id'
+        }
+
+        /// <summary>
+        /// Test the property 'DeprecatedRef'
+        /// </summary>
+        [Fact]
+        public void DeprecatedRefTest()
+        {
+            // TODO unit test for the property 'DeprecatedRef'
+        }
+
+        /// <summary>
+        /// Test the property 'Bars'
+        /// </summary>
+        [Fact]
+        public void BarsTest()
+        {
+            // TODO unit test for the property 'Bars'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OneOfStringTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OneOfStringTests.cs
new file mode 100644
index 00000000000..04727e77c69
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OneOfStringTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing OneOfString
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OneOfStringTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for OneOfString
+        //private OneOfString instance;
+
+        public OneOfStringTests()
+        {
+            // TODO uncomment below to create an instance of OneOfString
+            //instance = new OneOfString();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of OneOfString
+        /// </summary>
+        [Fact]
+        public void OneOfStringInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" OneOfString
+            //Assert.IsType<OneOfString>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OrderTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OrderTests.cs
new file mode 100644
index 00000000000..84d2828b367
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OrderTests.cs
@@ -0,0 +1,111 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Order
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OrderTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Order
+        //private Order instance;
+
+        public OrderTests()
+        {
+            // TODO uncomment below to create an instance of Order
+            //instance = new Order();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Order
+        /// </summary>
+        [Fact]
+        public void OrderInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Order
+            //Assert.IsType<Order>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Id'
+        /// </summary>
+        [Fact]
+        public void IdTest()
+        {
+            // TODO unit test for the property 'Id'
+        }
+
+        /// <summary>
+        /// Test the property 'PetId'
+        /// </summary>
+        [Fact]
+        public void PetIdTest()
+        {
+            // TODO unit test for the property 'PetId'
+        }
+
+        /// <summary>
+        /// Test the property 'Quantity'
+        /// </summary>
+        [Fact]
+        public void QuantityTest()
+        {
+            // TODO unit test for the property 'Quantity'
+        }
+
+        /// <summary>
+        /// Test the property 'ShipDate'
+        /// </summary>
+        [Fact]
+        public void ShipDateTest()
+        {
+            // TODO unit test for the property 'ShipDate'
+        }
+
+        /// <summary>
+        /// Test the property 'Status'
+        /// </summary>
+        [Fact]
+        public void StatusTest()
+        {
+            // TODO unit test for the property 'Status'
+        }
+
+        /// <summary>
+        /// Test the property 'Complete'
+        /// </summary>
+        [Fact]
+        public void CompleteTest()
+        {
+            // TODO unit test for the property 'Complete'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterCompositeTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterCompositeTests.cs
new file mode 100644
index 00000000000..fd52fa2cfca
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterCompositeTests.cs
@@ -0,0 +1,84 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing OuterComposite
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OuterCompositeTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for OuterComposite
+        //private OuterComposite instance;
+
+        public OuterCompositeTests()
+        {
+            // TODO uncomment below to create an instance of OuterComposite
+            //instance = new OuterComposite();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of OuterComposite
+        /// </summary>
+        [Fact]
+        public void OuterCompositeInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" OuterComposite
+            //Assert.IsType<OuterComposite>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'MyNumber'
+        /// </summary>
+        [Fact]
+        public void MyNumberTest()
+        {
+            // TODO unit test for the property 'MyNumber'
+        }
+
+        /// <summary>
+        /// Test the property 'MyString'
+        /// </summary>
+        [Fact]
+        public void MyStringTest()
+        {
+            // TODO unit test for the property 'MyString'
+        }
+
+        /// <summary>
+        /// Test the property 'MyBoolean'
+        /// </summary>
+        [Fact]
+        public void MyBooleanTest()
+        {
+            // TODO unit test for the property 'MyBoolean'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumDefaultValueTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumDefaultValueTests.cs
new file mode 100644
index 00000000000..db98c5a44ae
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumDefaultValueTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing OuterEnumDefaultValue
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OuterEnumDefaultValueTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for OuterEnumDefaultValue
+        //private OuterEnumDefaultValue instance;
+
+        public OuterEnumDefaultValueTests()
+        {
+            // TODO uncomment below to create an instance of OuterEnumDefaultValue
+            //instance = new OuterEnumDefaultValue();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of OuterEnumDefaultValue
+        /// </summary>
+        [Fact]
+        public void OuterEnumDefaultValueInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" OuterEnumDefaultValue
+            //Assert.IsType<OuterEnumDefaultValue>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerDefaultValueTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerDefaultValueTests.cs
new file mode 100644
index 00000000000..a4c028ea750
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerDefaultValueTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing OuterEnumIntegerDefaultValue
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OuterEnumIntegerDefaultValueTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for OuterEnumIntegerDefaultValue
+        //private OuterEnumIntegerDefaultValue instance;
+
+        public OuterEnumIntegerDefaultValueTests()
+        {
+            // TODO uncomment below to create an instance of OuterEnumIntegerDefaultValue
+            //instance = new OuterEnumIntegerDefaultValue();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of OuterEnumIntegerDefaultValue
+        /// </summary>
+        [Fact]
+        public void OuterEnumIntegerDefaultValueInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" OuterEnumIntegerDefaultValue
+            //Assert.IsType<OuterEnumIntegerDefaultValue>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerTests.cs
new file mode 100644
index 00000000000..4d1be408011
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumIntegerTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing OuterEnumInteger
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OuterEnumIntegerTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for OuterEnumInteger
+        //private OuterEnumInteger instance;
+
+        public OuterEnumIntegerTests()
+        {
+            // TODO uncomment below to create an instance of OuterEnumInteger
+            //instance = new OuterEnumInteger();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of OuterEnumInteger
+        /// </summary>
+        [Fact]
+        public void OuterEnumIntegerInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" OuterEnumInteger
+            //Assert.IsType<OuterEnumInteger>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumTestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumTestTests.cs
new file mode 100644
index 00000000000..ae2708449a9
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumTestTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing OuterEnumTest
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OuterEnumTestTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for OuterEnumTest
+        //private OuterEnumTest instance;
+
+        public OuterEnumTestTests()
+        {
+            // TODO uncomment below to create an instance of OuterEnumTest
+            //instance = new OuterEnumTest();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of OuterEnumTest
+        /// </summary>
+        [Fact]
+        public void OuterEnumTestInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" OuterEnumTest
+            //Assert.IsType<OuterEnumTest>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumTests.cs
new file mode 100644
index 00000000000..d4d6e96125d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/OuterEnumTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing OuterEnum
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class OuterEnumTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for OuterEnum
+        //private OuterEnum instance;
+
+        public OuterEnumTests()
+        {
+            // TODO uncomment below to create an instance of OuterEnum
+            //instance = new OuterEnum();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of OuterEnum
+        /// </summary>
+        [Fact]
+        public void OuterEnumInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" OuterEnum
+            //Assert.IsType<OuterEnum>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ParentPetTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ParentPetTests.cs
new file mode 100644
index 00000000000..eb9f5956b21
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ParentPetTests.cs
@@ -0,0 +1,67 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ParentPet
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ParentPetTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ParentPet
+        //private ParentPet instance;
+
+        public ParentPetTests()
+        {
+            // TODO uncomment below to create an instance of ParentPet
+            //instance = new ParentPet();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ParentPet
+        /// </summary>
+        [Fact]
+        public void ParentPetInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ParentPet
+            //Assert.IsType<ParentPet>(instance);
+        }
+
+        /// <summary>
+        /// Test deserialize a ChildCat from type ParentPet
+        /// </summary>
+        [Fact]
+        public void ChildCatDeserializeFromParentPetTest()
+        {
+            // TODO uncomment below to test deserialize a ChildCat from type ParentPet
+            //Assert.IsType<ParentPet>(JsonConvert.DeserializeObject<ParentPet>(new ChildCat().ToJson()));
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PetTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PetTests.cs
new file mode 100644
index 00000000000..535ab69d2aa
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PetTests.cs
@@ -0,0 +1,111 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Pet
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class PetTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Pet
+        //private Pet instance;
+
+        public PetTests()
+        {
+            // TODO uncomment below to create an instance of Pet
+            //instance = new Pet();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Pet
+        /// </summary>
+        [Fact]
+        public void PetInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Pet
+            //Assert.IsType<Pet>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Id'
+        /// </summary>
+        [Fact]
+        public void IdTest()
+        {
+            // TODO unit test for the property 'Id'
+        }
+
+        /// <summary>
+        /// Test the property 'Category'
+        /// </summary>
+        [Fact]
+        public void CategoryTest()
+        {
+            // TODO unit test for the property 'Category'
+        }
+
+        /// <summary>
+        /// Test the property 'Name'
+        /// </summary>
+        [Fact]
+        public void NameTest()
+        {
+            // TODO unit test for the property 'Name'
+        }
+
+        /// <summary>
+        /// Test the property 'PhotoUrls'
+        /// </summary>
+        [Fact]
+        public void PhotoUrlsTest()
+        {
+            // TODO unit test for the property 'PhotoUrls'
+        }
+
+        /// <summary>
+        /// Test the property 'Tags'
+        /// </summary>
+        [Fact]
+        public void TagsTest()
+        {
+            // TODO unit test for the property 'Tags'
+        }
+
+        /// <summary>
+        /// Test the property 'Status'
+        /// </summary>
+        [Fact]
+        public void StatusTest()
+        {
+            // TODO unit test for the property 'Status'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PigTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PigTests.cs
new file mode 100644
index 00000000000..34562dc6860
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PigTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Pig
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class PigTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Pig
+        //private Pig instance;
+
+        public PigTests()
+        {
+            // TODO uncomment below to create an instance of Pig
+            //instance = new Pig();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Pig
+        /// </summary>
+        [Fact]
+        public void PigInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Pig
+            //Assert.IsType<Pig>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ClassName'
+        /// </summary>
+        [Fact]
+        public void ClassNameTest()
+        {
+            // TODO unit test for the property 'ClassName'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PolymorphicPropertyTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PolymorphicPropertyTests.cs
new file mode 100644
index 00000000000..a546cd2b003
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/PolymorphicPropertyTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing PolymorphicProperty
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class PolymorphicPropertyTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for PolymorphicProperty
+        //private PolymorphicProperty instance;
+
+        public PolymorphicPropertyTests()
+        {
+            // TODO uncomment below to create an instance of PolymorphicProperty
+            //instance = new PolymorphicProperty();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of PolymorphicProperty
+        /// </summary>
+        [Fact]
+        public void PolymorphicPropertyInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" PolymorphicProperty
+            //Assert.IsType<PolymorphicProperty>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/QuadrilateralInterfaceTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/QuadrilateralInterfaceTests.cs
new file mode 100644
index 00000000000..d08798b3605
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/QuadrilateralInterfaceTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing QuadrilateralInterface
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class QuadrilateralInterfaceTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for QuadrilateralInterface
+        //private QuadrilateralInterface instance;
+
+        public QuadrilateralInterfaceTests()
+        {
+            // TODO uncomment below to create an instance of QuadrilateralInterface
+            //instance = new QuadrilateralInterface();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of QuadrilateralInterface
+        /// </summary>
+        [Fact]
+        public void QuadrilateralInterfaceInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" QuadrilateralInterface
+            //Assert.IsType<QuadrilateralInterface>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'QuadrilateralType'
+        /// </summary>
+        [Fact]
+        public void QuadrilateralTypeTest()
+        {
+            // TODO unit test for the property 'QuadrilateralType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/QuadrilateralTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/QuadrilateralTests.cs
new file mode 100644
index 00000000000..cd996d7e0ed
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/QuadrilateralTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Quadrilateral
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class QuadrilateralTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Quadrilateral
+        //private Quadrilateral instance;
+
+        public QuadrilateralTests()
+        {
+            // TODO uncomment below to create an instance of Quadrilateral
+            //instance = new Quadrilateral();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Quadrilateral
+        /// </summary>
+        [Fact]
+        public void QuadrilateralInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Quadrilateral
+            //Assert.IsType<Quadrilateral>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'QuadrilateralType'
+        /// </summary>
+        [Fact]
+        public void QuadrilateralTypeTest()
+        {
+            // TODO unit test for the property 'QuadrilateralType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ReadOnlyFirstTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ReadOnlyFirstTests.cs
new file mode 100644
index 00000000000..056bc2b4519
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ReadOnlyFirstTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ReadOnlyFirst
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ReadOnlyFirstTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ReadOnlyFirst
+        //private ReadOnlyFirst instance;
+
+        public ReadOnlyFirstTests()
+        {
+            // TODO uncomment below to create an instance of ReadOnlyFirst
+            //instance = new ReadOnlyFirst();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ReadOnlyFirst
+        /// </summary>
+        [Fact]
+        public void ReadOnlyFirstInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ReadOnlyFirst
+            //Assert.IsType<ReadOnlyFirst>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Bar'
+        /// </summary>
+        [Fact]
+        public void BarTest()
+        {
+            // TODO unit test for the property 'Bar'
+        }
+
+        /// <summary>
+        /// Test the property 'Baz'
+        /// </summary>
+        [Fact]
+        public void BazTest()
+        {
+            // TODO unit test for the property 'Baz'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RequiredClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RequiredClassTests.cs
new file mode 100644
index 00000000000..17de04feade
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RequiredClassTests.cs
@@ -0,0 +1,453 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing RequiredClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class RequiredClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for RequiredClass
+        //private RequiredClass instance;
+
+        public RequiredClassTests()
+        {
+            // TODO uncomment below to create an instance of RequiredClass
+            //instance = new RequiredClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of RequiredClass
+        /// </summary>
+        [Fact]
+        public void RequiredClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" RequiredClass
+            //Assert.IsType<RequiredClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableIntegerProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableIntegerPropTest()
+        {
+            // TODO unit test for the property 'RequiredNullableIntegerProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableintegerProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableintegerPropTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableintegerProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotRequiredNullableIntegerProp'
+        /// </summary>
+        [Fact]
+        public void NotRequiredNullableIntegerPropTest()
+        {
+            // TODO unit test for the property 'NotRequiredNullableIntegerProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotRequiredNotnullableintegerProp'
+        /// </summary>
+        [Fact]
+        public void NotRequiredNotnullableintegerPropTest()
+        {
+            // TODO unit test for the property 'NotRequiredNotnullableintegerProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableStringProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableStringPropTest()
+        {
+            // TODO unit test for the property 'RequiredNullableStringProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableStringProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableStringPropTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableStringProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableStringProp'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableStringPropTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableStringProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableStringProp'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableStringPropTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableStringProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableBooleanProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableBooleanPropTest()
+        {
+            // TODO unit test for the property 'RequiredNullableBooleanProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableBooleanProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableBooleanPropTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableBooleanProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableBooleanProp'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableBooleanPropTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableBooleanProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableBooleanProp'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableBooleanPropTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableBooleanProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableDateProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableDatePropTest()
+        {
+            // TODO unit test for the property 'RequiredNullableDateProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotNullableDateProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNotNullableDatePropTest()
+        {
+            // TODO unit test for the property 'RequiredNotNullableDateProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotRequiredNullableDateProp'
+        /// </summary>
+        [Fact]
+        public void NotRequiredNullableDatePropTest()
+        {
+            // TODO unit test for the property 'NotRequiredNullableDateProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotRequiredNotnullableDateProp'
+        /// </summary>
+        [Fact]
+        public void NotRequiredNotnullableDatePropTest()
+        {
+            // TODO unit test for the property 'NotRequiredNotnullableDateProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableDatetimeProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableDatetimePropTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableDatetimeProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableDatetimeProp'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableDatetimePropTest()
+        {
+            // TODO unit test for the property 'RequiredNullableDatetimeProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableDatetimeProp'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableDatetimePropTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableDatetimeProp'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableDatetimeProp'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableDatetimePropTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableDatetimeProp'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableEnumInteger'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableEnumIntegerTest()
+        {
+            // TODO unit test for the property 'RequiredNullableEnumInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableEnumInteger'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableEnumIntegerTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableEnumInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableEnumInteger'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableEnumIntegerTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableEnumInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableEnumInteger'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableEnumIntegerTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableEnumInteger'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableEnumIntegerOnly'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableEnumIntegerOnlyTest()
+        {
+            // TODO unit test for the property 'RequiredNullableEnumIntegerOnly'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableEnumIntegerOnly'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableEnumIntegerOnlyTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableEnumIntegerOnly'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableEnumIntegerOnly'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableEnumIntegerOnlyTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableEnumIntegerOnly'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableEnumIntegerOnly'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableEnumIntegerOnlyTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableEnumIntegerOnly'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableEnumString'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableEnumStringTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableEnumString'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableEnumString'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableEnumStringTest()
+        {
+            // TODO unit test for the property 'RequiredNullableEnumString'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableEnumString'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableEnumStringTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableEnumString'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableEnumString'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableEnumStringTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableEnumString'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableOuterEnumDefaultValue'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableOuterEnumDefaultValueTest()
+        {
+            // TODO unit test for the property 'RequiredNullableOuterEnumDefaultValue'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableOuterEnumDefaultValue'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableOuterEnumDefaultValueTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableOuterEnumDefaultValue'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableOuterEnumDefaultValue'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableOuterEnumDefaultValueTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableOuterEnumDefaultValue'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableOuterEnumDefaultValue'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableOuterEnumDefaultValueTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableOuterEnumDefaultValue'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableUuid'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableUuidTest()
+        {
+            // TODO unit test for the property 'RequiredNullableUuid'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableUuid'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableUuidTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableUuid'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableUuid'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableUuidTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableUuid'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableUuid'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableUuidTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableUuid'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNullableArrayOfString'
+        /// </summary>
+        [Fact]
+        public void RequiredNullableArrayOfStringTest()
+        {
+            // TODO unit test for the property 'RequiredNullableArrayOfString'
+        }
+
+        /// <summary>
+        /// Test the property 'RequiredNotnullableArrayOfString'
+        /// </summary>
+        [Fact]
+        public void RequiredNotnullableArrayOfStringTest()
+        {
+            // TODO unit test for the property 'RequiredNotnullableArrayOfString'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNullableArrayOfString'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNullableArrayOfStringTest()
+        {
+            // TODO unit test for the property 'NotrequiredNullableArrayOfString'
+        }
+
+        /// <summary>
+        /// Test the property 'NotrequiredNotnullableArrayOfString'
+        /// </summary>
+        [Fact]
+        public void NotrequiredNotnullableArrayOfStringTest()
+        {
+            // TODO unit test for the property 'NotrequiredNotnullableArrayOfString'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ReturnTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ReturnTests.cs
new file mode 100644
index 00000000000..4779edd8079
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ReturnTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Return
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ReturnTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Return
+        //private Return instance;
+
+        public ReturnTests()
+        {
+            // TODO uncomment below to create an instance of Return
+            //instance = new Return();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Return
+        /// </summary>
+        [Fact]
+        public void ReturnInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Return
+            //Assert.IsType<Return>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'VarReturn'
+        /// </summary>
+        [Fact]
+        public void VarReturnTest()
+        {
+            // TODO unit test for the property 'VarReturn'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashRoleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashRoleTests.cs
new file mode 100644
index 00000000000..8aef6cd974f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashRoleTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing RolesReportsHashRole
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class RolesReportsHashRoleTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for RolesReportsHashRole
+        //private RolesReportsHashRole instance;
+
+        public RolesReportsHashRoleTests()
+        {
+            // TODO uncomment below to create an instance of RolesReportsHashRole
+            //instance = new RolesReportsHashRole();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of RolesReportsHashRole
+        /// </summary>
+        [Fact]
+        public void RolesReportsHashRoleInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" RolesReportsHashRole
+            //Assert.IsType<RolesReportsHashRole>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Name'
+        /// </summary>
+        [Fact]
+        public void NameTest()
+        {
+            // TODO unit test for the property 'Name'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashTests.cs
new file mode 100644
index 00000000000..190f1e90210
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/RolesReportsHashTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing RolesReportsHash
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class RolesReportsHashTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for RolesReportsHash
+        //private RolesReportsHash instance;
+
+        public RolesReportsHashTests()
+        {
+            // TODO uncomment below to create an instance of RolesReportsHash
+            //instance = new RolesReportsHash();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of RolesReportsHash
+        /// </summary>
+        [Fact]
+        public void RolesReportsHashInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" RolesReportsHash
+            //Assert.IsType<RolesReportsHash>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'RoleUuid'
+        /// </summary>
+        [Fact]
+        public void RoleUuidTest()
+        {
+            // TODO unit test for the property 'RoleUuid'
+        }
+
+        /// <summary>
+        /// Test the property 'Role'
+        /// </summary>
+        [Fact]
+        public void RoleTest()
+        {
+            // TODO unit test for the property 'Role'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ScaleneTriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ScaleneTriangleTests.cs
new file mode 100644
index 00000000000..a7332ab47b0
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ScaleneTriangleTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ScaleneTriangle
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ScaleneTriangleTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ScaleneTriangle
+        //private ScaleneTriangle instance;
+
+        public ScaleneTriangleTests()
+        {
+            // TODO uncomment below to create an instance of ScaleneTriangle
+            //instance = new ScaleneTriangle();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ScaleneTriangle
+        /// </summary>
+        [Fact]
+        public void ScaleneTriangleInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ScaleneTriangle
+            //Assert.IsType<ScaleneTriangle>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'TriangleType'
+        /// </summary>
+        [Fact]
+        public void TriangleTypeTest()
+        {
+            // TODO unit test for the property 'TriangleType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeInterfaceTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeInterfaceTests.cs
new file mode 100644
index 00000000000..e082fb3b4fa
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeInterfaceTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ShapeInterface
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ShapeInterfaceTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ShapeInterface
+        //private ShapeInterface instance;
+
+        public ShapeInterfaceTests()
+        {
+            // TODO uncomment below to create an instance of ShapeInterface
+            //instance = new ShapeInterface();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ShapeInterface
+        /// </summary>
+        [Fact]
+        public void ShapeInterfaceInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ShapeInterface
+            //Assert.IsType<ShapeInterface>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeOrNullTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeOrNullTests.cs
new file mode 100644
index 00000000000..b70c157800b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeOrNullTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ShapeOrNull
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ShapeOrNullTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ShapeOrNull
+        //private ShapeOrNull instance;
+
+        public ShapeOrNullTests()
+        {
+            // TODO uncomment below to create an instance of ShapeOrNull
+            //instance = new ShapeOrNull();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ShapeOrNull
+        /// </summary>
+        [Fact]
+        public void ShapeOrNullInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ShapeOrNull
+            //Assert.IsType<ShapeOrNull>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'QuadrilateralType'
+        /// </summary>
+        [Fact]
+        public void QuadrilateralTypeTest()
+        {
+            // TODO unit test for the property 'QuadrilateralType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeTests.cs
new file mode 100644
index 00000000000..babd94722cf
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ShapeTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Shape
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ShapeTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Shape
+        //private Shape instance;
+
+        public ShapeTests()
+        {
+            // TODO uncomment below to create an instance of Shape
+            //instance = new Shape();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Shape
+        /// </summary>
+        [Fact]
+        public void ShapeInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Shape
+            //Assert.IsType<Shape>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'QuadrilateralType'
+        /// </summary>
+        [Fact]
+        public void QuadrilateralTypeTest()
+        {
+            // TODO unit test for the property 'QuadrilateralType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/SimpleQuadrilateralTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/SimpleQuadrilateralTests.cs
new file mode 100644
index 00000000000..24f0288bcac
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/SimpleQuadrilateralTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing SimpleQuadrilateral
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class SimpleQuadrilateralTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for SimpleQuadrilateral
+        //private SimpleQuadrilateral instance;
+
+        public SimpleQuadrilateralTests()
+        {
+            // TODO uncomment below to create an instance of SimpleQuadrilateral
+            //instance = new SimpleQuadrilateral();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of SimpleQuadrilateral
+        /// </summary>
+        [Fact]
+        public void SimpleQuadrilateralInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" SimpleQuadrilateral
+            //Assert.IsType<SimpleQuadrilateral>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'QuadrilateralType'
+        /// </summary>
+        [Fact]
+        public void QuadrilateralTypeTest()
+        {
+            // TODO unit test for the property 'QuadrilateralType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/SpecialModelNameTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/SpecialModelNameTests.cs
new file mode 100644
index 00000000000..ef8a8d50e3e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/SpecialModelNameTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing SpecialModelName
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class SpecialModelNameTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for SpecialModelName
+        //private SpecialModelName instance;
+
+        public SpecialModelNameTests()
+        {
+            // TODO uncomment below to create an instance of SpecialModelName
+            //instance = new SpecialModelName();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of SpecialModelName
+        /// </summary>
+        [Fact]
+        public void SpecialModelNameInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" SpecialModelName
+            //Assert.IsType<SpecialModelName>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'SpecialPropertyName'
+        /// </summary>
+        [Fact]
+        public void SpecialPropertyNameTest()
+        {
+            // TODO unit test for the property 'SpecialPropertyName'
+        }
+
+        /// <summary>
+        /// Test the property 'VarSpecialModelName'
+        /// </summary>
+        [Fact]
+        public void VarSpecialModelNameTest()
+        {
+            // TODO unit test for the property 'VarSpecialModelName'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TagTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TagTests.cs
new file mode 100644
index 00000000000..8f9ad604eab
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TagTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Tag
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class TagTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Tag
+        //private Tag instance;
+
+        public TagTests()
+        {
+            // TODO uncomment below to create an instance of Tag
+            //instance = new Tag();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Tag
+        /// </summary>
+        [Fact]
+        public void TagInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Tag
+            //Assert.IsType<Tag>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Id'
+        /// </summary>
+        [Fact]
+        public void IdTest()
+        {
+            // TODO unit test for the property 'Id'
+        }
+
+        /// <summary>
+        /// Test the property 'Name'
+        /// </summary>
+        [Fact]
+        public void NameTest()
+        {
+            // TODO unit test for the property 'Name'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListObjectTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListObjectTests.cs
new file mode 100644
index 00000000000..6623a04fcc4
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListObjectTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing TestCollectionEndingWithWordListObject
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class TestCollectionEndingWithWordListObjectTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for TestCollectionEndingWithWordListObject
+        //private TestCollectionEndingWithWordListObject instance;
+
+        public TestCollectionEndingWithWordListObjectTests()
+        {
+            // TODO uncomment below to create an instance of TestCollectionEndingWithWordListObject
+            //instance = new TestCollectionEndingWithWordListObject();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of TestCollectionEndingWithWordListObject
+        /// </summary>
+        [Fact]
+        public void TestCollectionEndingWithWordListObjectInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" TestCollectionEndingWithWordListObject
+            //Assert.IsType<TestCollectionEndingWithWordListObject>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'TestCollectionEndingWithWordList'
+        /// </summary>
+        [Fact]
+        public void TestCollectionEndingWithWordListTest()
+        {
+            // TODO unit test for the property 'TestCollectionEndingWithWordList'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListTests.cs
new file mode 100644
index 00000000000..a32943a0c84
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestCollectionEndingWithWordListTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing TestCollectionEndingWithWordList
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class TestCollectionEndingWithWordListTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for TestCollectionEndingWithWordList
+        //private TestCollectionEndingWithWordList instance;
+
+        public TestCollectionEndingWithWordListTests()
+        {
+            // TODO uncomment below to create an instance of TestCollectionEndingWithWordList
+            //instance = new TestCollectionEndingWithWordList();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of TestCollectionEndingWithWordList
+        /// </summary>
+        [Fact]
+        public void TestCollectionEndingWithWordListInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" TestCollectionEndingWithWordList
+            //Assert.IsType<TestCollectionEndingWithWordList>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Value'
+        /// </summary>
+        [Fact]
+        public void ValueTest()
+        {
+            // TODO unit test for the property 'Value'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestInlineFreeformAdditionalPropertiesRequestTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestInlineFreeformAdditionalPropertiesRequestTests.cs
new file mode 100644
index 00000000000..435d4630ee7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TestInlineFreeformAdditionalPropertiesRequestTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing TestInlineFreeformAdditionalPropertiesRequest
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class TestInlineFreeformAdditionalPropertiesRequestTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for TestInlineFreeformAdditionalPropertiesRequest
+        //private TestInlineFreeformAdditionalPropertiesRequest instance;
+
+        public TestInlineFreeformAdditionalPropertiesRequestTests()
+        {
+            // TODO uncomment below to create an instance of TestInlineFreeformAdditionalPropertiesRequest
+            //instance = new TestInlineFreeformAdditionalPropertiesRequest();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of TestInlineFreeformAdditionalPropertiesRequest
+        /// </summary>
+        [Fact]
+        public void TestInlineFreeformAdditionalPropertiesRequestInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" TestInlineFreeformAdditionalPropertiesRequest
+            //Assert.IsType<TestInlineFreeformAdditionalPropertiesRequest>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'SomeProperty'
+        /// </summary>
+        [Fact]
+        public void SomePropertyTest()
+        {
+            // TODO unit test for the property 'SomeProperty'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TriangleInterfaceTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TriangleInterfaceTests.cs
new file mode 100644
index 00000000000..1750c64c4ed
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TriangleInterfaceTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing TriangleInterface
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class TriangleInterfaceTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for TriangleInterface
+        //private TriangleInterface instance;
+
+        public TriangleInterfaceTests()
+        {
+            // TODO uncomment below to create an instance of TriangleInterface
+            //instance = new TriangleInterface();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of TriangleInterface
+        /// </summary>
+        [Fact]
+        public void TriangleInterfaceInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" TriangleInterface
+            //Assert.IsType<TriangleInterface>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'TriangleType'
+        /// </summary>
+        [Fact]
+        public void TriangleTypeTest()
+        {
+            // TODO unit test for the property 'TriangleType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TriangleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TriangleTests.cs
new file mode 100644
index 00000000000..0dd209f5303
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/TriangleTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Triangle
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class TriangleTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Triangle
+        //private Triangle instance;
+
+        public TriangleTests()
+        {
+            // TODO uncomment below to create an instance of Triangle
+            //instance = new Triangle();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Triangle
+        /// </summary>
+        [Fact]
+        public void TriangleInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Triangle
+            //Assert.IsType<Triangle>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ShapeType'
+        /// </summary>
+        [Fact]
+        public void ShapeTypeTest()
+        {
+            // TODO unit test for the property 'ShapeType'
+        }
+
+        /// <summary>
+        /// Test the property 'TriangleType'
+        /// </summary>
+        [Fact]
+        public void TriangleTypeTest()
+        {
+            // TODO unit test for the property 'TriangleType'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/UserTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/UserTests.cs
new file mode 100644
index 00000000000..bc3cb3775de
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/UserTests.cs
@@ -0,0 +1,165 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing User
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class UserTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for User
+        //private User instance;
+
+        public UserTests()
+        {
+            // TODO uncomment below to create an instance of User
+            //instance = new User();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of User
+        /// </summary>
+        [Fact]
+        public void UserInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" User
+            //Assert.IsType<User>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Id'
+        /// </summary>
+        [Fact]
+        public void IdTest()
+        {
+            // TODO unit test for the property 'Id'
+        }
+
+        /// <summary>
+        /// Test the property 'Username'
+        /// </summary>
+        [Fact]
+        public void UsernameTest()
+        {
+            // TODO unit test for the property 'Username'
+        }
+
+        /// <summary>
+        /// Test the property 'FirstName'
+        /// </summary>
+        [Fact]
+        public void FirstNameTest()
+        {
+            // TODO unit test for the property 'FirstName'
+        }
+
+        /// <summary>
+        /// Test the property 'LastName'
+        /// </summary>
+        [Fact]
+        public void LastNameTest()
+        {
+            // TODO unit test for the property 'LastName'
+        }
+
+        /// <summary>
+        /// Test the property 'Email'
+        /// </summary>
+        [Fact]
+        public void EmailTest()
+        {
+            // TODO unit test for the property 'Email'
+        }
+
+        /// <summary>
+        /// Test the property 'Password'
+        /// </summary>
+        [Fact]
+        public void PasswordTest()
+        {
+            // TODO unit test for the property 'Password'
+        }
+
+        /// <summary>
+        /// Test the property 'Phone'
+        /// </summary>
+        [Fact]
+        public void PhoneTest()
+        {
+            // TODO unit test for the property 'Phone'
+        }
+
+        /// <summary>
+        /// Test the property 'UserStatus'
+        /// </summary>
+        [Fact]
+        public void UserStatusTest()
+        {
+            // TODO unit test for the property 'UserStatus'
+        }
+
+        /// <summary>
+        /// Test the property 'ObjectWithNoDeclaredProps'
+        /// </summary>
+        [Fact]
+        public void ObjectWithNoDeclaredPropsTest()
+        {
+            // TODO unit test for the property 'ObjectWithNoDeclaredProps'
+        }
+
+        /// <summary>
+        /// Test the property 'ObjectWithNoDeclaredPropsNullable'
+        /// </summary>
+        [Fact]
+        public void ObjectWithNoDeclaredPropsNullableTest()
+        {
+            // TODO unit test for the property 'ObjectWithNoDeclaredPropsNullable'
+        }
+
+        /// <summary>
+        /// Test the property 'AnyTypeProp'
+        /// </summary>
+        [Fact]
+        public void AnyTypePropTest()
+        {
+            // TODO unit test for the property 'AnyTypeProp'
+        }
+
+        /// <summary>
+        /// Test the property 'AnyTypePropNullable'
+        /// </summary>
+        [Fact]
+        public void AnyTypePropNullableTest()
+        {
+            // TODO unit test for the property 'AnyTypePropNullable'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/WhaleTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/WhaleTests.cs
new file mode 100644
index 00000000000..de86c02372c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/WhaleTests.cs
@@ -0,0 +1,84 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Whale
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class WhaleTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Whale
+        //private Whale instance;
+
+        public WhaleTests()
+        {
+            // TODO uncomment below to create an instance of Whale
+            //instance = new Whale();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Whale
+        /// </summary>
+        [Fact]
+        public void WhaleInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Whale
+            //Assert.IsType<Whale>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'HasBaleen'
+        /// </summary>
+        [Fact]
+        public void HasBaleenTest()
+        {
+            // TODO unit test for the property 'HasBaleen'
+        }
+
+        /// <summary>
+        /// Test the property 'HasTeeth'
+        /// </summary>
+        [Fact]
+        public void HasTeethTest()
+        {
+            // TODO unit test for the property 'HasTeeth'
+        }
+
+        /// <summary>
+        /// Test the property 'ClassName'
+        /// </summary>
+        [Fact]
+        public void ClassNameTest()
+        {
+            // TODO unit test for the property 'ClassName'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZebraTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZebraTests.cs
new file mode 100644
index 00000000000..55e70c43e0a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZebraTests.cs
@@ -0,0 +1,75 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing Zebra
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ZebraTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for Zebra
+        //private Zebra instance;
+
+        public ZebraTests()
+        {
+            // TODO uncomment below to create an instance of Zebra
+            //instance = new Zebra();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of Zebra
+        /// </summary>
+        [Fact]
+        public void ZebraInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" Zebra
+            //Assert.IsType<Zebra>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'Type'
+        /// </summary>
+        [Fact]
+        public void TypeTest()
+        {
+            // TODO unit test for the property 'Type'
+        }
+
+        /// <summary>
+        /// Test the property 'ClassName'
+        /// </summary>
+        [Fact]
+        public void ClassNameTest()
+        {
+            // TODO unit test for the property 'ClassName'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumClassTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumClassTests.cs
new file mode 100644
index 00000000000..d828b6d03a7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumClassTests.cs
@@ -0,0 +1,66 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ZeroBasedEnumClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ZeroBasedEnumClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ZeroBasedEnumClass
+        //private ZeroBasedEnumClass instance;
+
+        public ZeroBasedEnumClassTests()
+        {
+            // TODO uncomment below to create an instance of ZeroBasedEnumClass
+            //instance = new ZeroBasedEnumClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ZeroBasedEnumClass
+        /// </summary>
+        [Fact]
+        public void ZeroBasedEnumClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ZeroBasedEnumClass
+            //Assert.IsType<ZeroBasedEnumClass>(instance);
+        }
+
+        /// <summary>
+        /// Test the property 'ZeroBasedEnum'
+        /// </summary>
+        [Fact]
+        public void ZeroBasedEnumTest()
+        {
+            // TODO unit test for the property 'ZeroBasedEnum'
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumTests.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumTests.cs
new file mode 100644
index 00000000000..38260add43e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Model/ZeroBasedEnumTests.cs
@@ -0,0 +1,57 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing ZeroBasedEnum
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class ZeroBasedEnumTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for ZeroBasedEnum
+        //private ZeroBasedEnum instance;
+
+        public ZeroBasedEnumTests()
+        {
+            // TODO uncomment below to create an instance of ZeroBasedEnum
+            //instance = new ZeroBasedEnum();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of ZeroBasedEnum
+        /// </summary>
+        [Fact]
+        public void ZeroBasedEnumInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" ZeroBasedEnum
+            //Assert.IsType<ZeroBasedEnum>(instance);
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
new file mode 100644
index 00000000000..aec698f34ed
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools.Test/Org.OpenAPITools.Test.csproj
@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <AssemblyName>Org.OpenAPITools.Test</AssemblyName>
+    <RootNamespace>Org.OpenAPITools.Test</RootNamespace>
+    <TargetFramework>net8.0</TargetFramework>
+    <IsPackable>false</IsPackable>
+    <Nullable>annotations</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="xunit" Version="2.6.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Org.OpenAPITools\Org.OpenAPITools.csproj" />
+  </ItemGroup>
+</Project>
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/AnotherFakeApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/AnotherFakeApi.cs
new file mode 100644
index 00000000000..95d41fcbd94
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/AnotherFakeApi.cs
@@ -0,0 +1,354 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Mime;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Client.Auth;
+using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Api
+{
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IAnotherFakeApiSync : IApiAccessor
+    {
+        #region Synchronous Operations
+        /// <summary>
+        /// To test special tags
+        /// </summary>
+        /// <remarks>
+        /// To test special tags and operation ID starting with number
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ModelClient</returns>
+        ModelClient Call123TestSpecialTags(ModelClient modelClient, int operationIndex = 0);
+
+        /// <summary>
+        /// To test special tags
+        /// </summary>
+        /// <remarks>
+        /// To test special tags and operation ID starting with number
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ModelClient</returns>
+        ApiResponse<ModelClient> Call123TestSpecialTagsWithHttpInfo(ModelClient modelClient, int operationIndex = 0);
+        #endregion Synchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IAnotherFakeApiAsync : IApiAccessor
+    {
+        #region Asynchronous Operations
+        /// <summary>
+        /// To test special tags
+        /// </summary>
+        /// <remarks>
+        /// To test special tags and operation ID starting with number
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ModelClient</returns>
+        System.Threading.Tasks.Task<ModelClient> Call123TestSpecialTagsAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// To test special tags
+        /// </summary>
+        /// <remarks>
+        /// To test special tags and operation ID starting with number
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ModelClient)</returns>
+        System.Threading.Tasks.Task<ApiResponse<ModelClient>> Call123TestSpecialTagsWithHttpInfoAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        #endregion Asynchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IAnotherFakeApi : IAnotherFakeApiSync, IAnotherFakeApiAsync
+    {
+
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public partial class AnotherFakeApi : IAnotherFakeApi
+    {
+        private Org.OpenAPITools.Client.ExceptionFactory _exceptionFactory = (name, response) => null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AnotherFakeApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public AnotherFakeApi() : this((string)null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AnotherFakeApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public AnotherFakeApi(string basePath)
+        {
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                new Org.OpenAPITools.Client.Configuration { BasePath = basePath }
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AnotherFakeApi"/> class
+        /// using Configuration object
+        /// </summary>
+        /// <param name="configuration">An instance of Configuration</param>
+        /// <returns></returns>
+        public AnotherFakeApi(Org.OpenAPITools.Client.Configuration configuration)
+        {
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                configuration
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AnotherFakeApi"/> class
+        /// using a Configuration object and client instance.
+        /// </summary>
+        /// <param name="client">The client interface for synchronous API access.</param>
+        /// <param name="asyncClient">The client interface for asynchronous API access.</param>
+        /// <param name="configuration">The configuration object.</param>
+        public AnotherFakeApi(Org.OpenAPITools.Client.ISynchronousClient client, Org.OpenAPITools.Client.IAsynchronousClient asyncClient, Org.OpenAPITools.Client.IReadableConfiguration configuration)
+        {
+            if (client == null) throw new ArgumentNullException("client");
+            if (asyncClient == null) throw new ArgumentNullException("asyncClient");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Client = client;
+            this.AsynchronousClient = asyncClient;
+            this.Configuration = configuration;
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// The client for accessing this underlying API asynchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.IAsynchronousClient AsynchronousClient { get; set; }
+
+        /// <summary>
+        /// The client for accessing this underlying API synchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.ISynchronousClient Client { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        public string GetBasePath()
+        {
+            return this.Configuration.BasePath;
+        }
+
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        public Org.OpenAPITools.Client.IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        public Org.OpenAPITools.Client.ExceptionFactory ExceptionFactory
+        {
+            get
+            {
+                if (_exceptionFactory != null && _exceptionFactory.GetInvocationList().Length > 1)
+                {
+                    throw new InvalidOperationException("Multicast delegate for ExceptionFactory is unsupported.");
+                }
+                return _exceptionFactory;
+            }
+            set { _exceptionFactory = value; }
+        }
+
+        /// <summary>
+        /// To test special tags To test special tags and operation ID starting with number
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ModelClient</returns>
+        public ModelClient Call123TestSpecialTags(ModelClient modelClient, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<ModelClient> localVarResponse = Call123TestSpecialTagsWithHttpInfo(modelClient);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// To test special tags To test special tags and operation ID starting with number
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ModelClient</returns>
+        public Org.OpenAPITools.Client.ApiResponse<ModelClient> Call123TestSpecialTagsWithHttpInfo(ModelClient modelClient, int operationIndex = 0)
+        {
+            // verify the required parameter 'modelClient' is set
+            if (modelClient == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'modelClient' when calling AnotherFakeApi->Call123TestSpecialTags");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = modelClient;
+
+            localVarRequestOptions.Operation = "AnotherFakeApi.Call123TestSpecialTags";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Patch<ModelClient>("/another-fake/dummy", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("Call123TestSpecialTags", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// To test special tags To test special tags and operation ID starting with number
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ModelClient</returns>
+        public async System.Threading.Tasks.Task<ModelClient> Call123TestSpecialTagsAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<ModelClient> localVarResponse = await Call123TestSpecialTagsWithHttpInfoAsync(modelClient, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// To test special tags To test special tags and operation ID starting with number
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ModelClient)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<ModelClient>> Call123TestSpecialTagsWithHttpInfoAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'modelClient' is set
+            if (modelClient == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'modelClient' when calling AnotherFakeApi->Call123TestSpecialTags");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = modelClient;
+
+            localVarRequestOptions.Operation = "AnotherFakeApi.Call123TestSpecialTags";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PatchAsync<ModelClient>("/another-fake/dummy", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("Call123TestSpecialTags", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/DefaultApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/DefaultApi.cs
new file mode 100644
index 00000000000..354f9eb6d9f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/DefaultApi.cs
@@ -0,0 +1,1018 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Mime;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Client.Auth;
+using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Api
+{
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IDefaultApiSync : IApiAccessor
+    {
+        #region Synchronous Operations
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>FooGetDefaultResponse</returns>
+        FooGetDefaultResponse FooGet(int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of FooGetDefaultResponse</returns>
+        ApiResponse<FooGetDefaultResponse> FooGetWithHttpInfo(int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void GetCountry(string country, int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> GetCountryWithHttpInfo(string country, int operationIndex = 0);
+        /// <summary>
+        /// Hello
+        /// </summary>
+        /// <remarks>
+        /// Hello
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;Guid&gt;</returns>
+        List<Guid> Hello(int operationIndex = 0);
+
+        /// <summary>
+        /// Hello
+        /// </summary>
+        /// <remarks>
+        /// Hello
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;Guid&gt;</returns>
+        ApiResponse<List<Guid>> HelloWithHttpInfo(int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;List&lt;RolesReportsHash&gt;&gt;</returns>
+        List<List<RolesReportsHash>> RolesReportGet(int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;List&lt;RolesReportsHash&gt;&gt;</returns>
+        ApiResponse<List<List<RolesReportsHash>>> RolesReportGetWithHttpInfo(int operationIndex = 0);
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>NotificationtestGetElementsV1ResponseMPayload</returns>
+        NotificationtestGetElementsV1ResponseMPayload Test(int operationIndex = 0);
+
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of NotificationtestGetElementsV1ResponseMPayload</returns>
+        ApiResponse<NotificationtestGetElementsV1ResponseMPayload> TestWithHttpInfo(int operationIndex = 0);
+        #endregion Synchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IDefaultApiAsync : IApiAccessor
+    {
+        #region Asynchronous Operations
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of FooGetDefaultResponse</returns>
+        System.Threading.Tasks.Task<FooGetDefaultResponse> FooGetAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (FooGetDefaultResponse)</returns>
+        System.Threading.Tasks.Task<ApiResponse<FooGetDefaultResponse>> FooGetWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task GetCountryAsync(string country, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> GetCountryWithHttpInfoAsync(string country, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Hello
+        /// </summary>
+        /// <remarks>
+        /// Hello
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;Guid&gt;</returns>
+        System.Threading.Tasks.Task<List<Guid>> HelloAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Hello
+        /// </summary>
+        /// <remarks>
+        /// Hello
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;Guid&gt;)</returns>
+        System.Threading.Tasks.Task<ApiResponse<List<Guid>>> HelloWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;List&lt;RolesReportsHash&gt;&gt;</returns>
+        System.Threading.Tasks.Task<List<List<RolesReportsHash>>> RolesReportGetAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;List&lt;RolesReportsHash&gt;&gt;)</returns>
+        System.Threading.Tasks.Task<ApiResponse<List<List<RolesReportsHash>>>> RolesReportGetWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of NotificationtestGetElementsV1ResponseMPayload</returns>
+        System.Threading.Tasks.Task<NotificationtestGetElementsV1ResponseMPayload> TestAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (NotificationtestGetElementsV1ResponseMPayload)</returns>
+        System.Threading.Tasks.Task<ApiResponse<NotificationtestGetElementsV1ResponseMPayload>> TestWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        #endregion Asynchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IDefaultApi : IDefaultApiSync, IDefaultApiAsync
+    {
+
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public partial class DefaultApi : IDefaultApi
+    {
+        private Org.OpenAPITools.Client.ExceptionFactory _exceptionFactory = (name, response) => null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DefaultApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public DefaultApi() : this((string)null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DefaultApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public DefaultApi(string basePath)
+        {
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                new Org.OpenAPITools.Client.Configuration { BasePath = basePath }
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DefaultApi"/> class
+        /// using Configuration object
+        /// </summary>
+        /// <param name="configuration">An instance of Configuration</param>
+        /// <returns></returns>
+        public DefaultApi(Org.OpenAPITools.Client.Configuration configuration)
+        {
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                configuration
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DefaultApi"/> class
+        /// using a Configuration object and client instance.
+        /// </summary>
+        /// <param name="client">The client interface for synchronous API access.</param>
+        /// <param name="asyncClient">The client interface for asynchronous API access.</param>
+        /// <param name="configuration">The configuration object.</param>
+        public DefaultApi(Org.OpenAPITools.Client.ISynchronousClient client, Org.OpenAPITools.Client.IAsynchronousClient asyncClient, Org.OpenAPITools.Client.IReadableConfiguration configuration)
+        {
+            if (client == null) throw new ArgumentNullException("client");
+            if (asyncClient == null) throw new ArgumentNullException("asyncClient");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Client = client;
+            this.AsynchronousClient = asyncClient;
+            this.Configuration = configuration;
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// The client for accessing this underlying API asynchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.IAsynchronousClient AsynchronousClient { get; set; }
+
+        /// <summary>
+        /// The client for accessing this underlying API synchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.ISynchronousClient Client { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        public string GetBasePath()
+        {
+            return this.Configuration.BasePath;
+        }
+
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        public Org.OpenAPITools.Client.IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        public Org.OpenAPITools.Client.ExceptionFactory ExceptionFactory
+        {
+            get
+            {
+                if (_exceptionFactory != null && _exceptionFactory.GetInvocationList().Length > 1)
+                {
+                    throw new InvalidOperationException("Multicast delegate for ExceptionFactory is unsupported.");
+                }
+                return _exceptionFactory;
+            }
+            set { _exceptionFactory = value; }
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>FooGetDefaultResponse</returns>
+        public FooGetDefaultResponse FooGet(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<FooGetDefaultResponse> localVarResponse = FooGetWithHttpInfo();
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of FooGetDefaultResponse</returns>
+        public Org.OpenAPITools.Client.ApiResponse<FooGetDefaultResponse> FooGetWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.FooGet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<FooGetDefaultResponse>("/foo", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FooGet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of FooGetDefaultResponse</returns>
+        public async System.Threading.Tasks.Task<FooGetDefaultResponse> FooGetAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<FooGetDefaultResponse> localVarResponse = await FooGetWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (FooGetDefaultResponse)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<FooGetDefaultResponse>> FooGetWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.FooGet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<FooGetDefaultResponse>("/foo", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FooGet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void GetCountry(string country, int operationIndex = 0)
+        {
+            GetCountryWithHttpInfo(country);
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> GetCountryWithHttpInfo(string country, int operationIndex = 0)
+        {
+            // verify the required parameter 'country' is set
+            if (country == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'country' when calling DefaultApi->GetCountry");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.FormParameters.Add("country", Org.OpenAPITools.Client.ClientUtils.ParameterToString(country)); // form parameter
+
+            localVarRequestOptions.Operation = "DefaultApi.GetCountry";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/country", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetCountry", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task GetCountryAsync(string country, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await GetCountryWithHttpInfoAsync(country, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="country"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> GetCountryWithHttpInfoAsync(string country, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'country' is set
+            if (country == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'country' when calling DefaultApi->GetCountry");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.FormParameters.Add("country", Org.OpenAPITools.Client.ClientUtils.ParameterToString(country)); // form parameter
+
+            localVarRequestOptions.Operation = "DefaultApi.GetCountry";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/country", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetCountry", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Hello Hello
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;Guid&gt;</returns>
+        public List<Guid> Hello(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<Guid>> localVarResponse = HelloWithHttpInfo();
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Hello Hello
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;Guid&gt;</returns>
+        public Org.OpenAPITools.Client.ApiResponse<List<Guid>> HelloWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.Hello";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<List<Guid>>("/hello", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("Hello", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Hello Hello
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;Guid&gt;</returns>
+        public async System.Threading.Tasks.Task<List<Guid>> HelloAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<Guid>> localVarResponse = await HelloWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Hello Hello
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;Guid&gt;)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<List<Guid>>> HelloWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.Hello";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<List<Guid>>("/hello", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("Hello", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;List&lt;RolesReportsHash&gt;&gt;</returns>
+        public List<List<RolesReportsHash>> RolesReportGet(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<List<RolesReportsHash>>> localVarResponse = RolesReportGetWithHttpInfo();
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;List&lt;RolesReportsHash&gt;&gt;</returns>
+        public Org.OpenAPITools.Client.ApiResponse<List<List<RolesReportsHash>>> RolesReportGetWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.RolesReportGet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<List<List<RolesReportsHash>>>("/roles/report", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("RolesReportGet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;List&lt;RolesReportsHash&gt;&gt;</returns>
+        public async System.Threading.Tasks.Task<List<List<RolesReportsHash>>> RolesReportGetAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<List<RolesReportsHash>>> localVarResponse = await RolesReportGetWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;List&lt;RolesReportsHash&gt;&gt;)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<List<List<RolesReportsHash>>>> RolesReportGetWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.RolesReportGet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<List<List<RolesReportsHash>>>("/roles/report", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("RolesReportGet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>NotificationtestGetElementsV1ResponseMPayload</returns>
+        public NotificationtestGetElementsV1ResponseMPayload Test(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<NotificationtestGetElementsV1ResponseMPayload> localVarResponse = TestWithHttpInfo();
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of NotificationtestGetElementsV1ResponseMPayload</returns>
+        public Org.OpenAPITools.Client.ApiResponse<NotificationtestGetElementsV1ResponseMPayload> TestWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.Test";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<NotificationtestGetElementsV1ResponseMPayload>("/test", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("Test", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of NotificationtestGetElementsV1ResponseMPayload</returns>
+        public async System.Threading.Tasks.Task<NotificationtestGetElementsV1ResponseMPayload> TestAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<NotificationtestGetElementsV1ResponseMPayload> localVarResponse = await TestWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Retrieve an existing Notificationtest&#39;s Elements 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (NotificationtestGetElementsV1ResponseMPayload)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<NotificationtestGetElementsV1ResponseMPayload>> TestWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "DefaultApi.Test";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<NotificationtestGetElementsV1ResponseMPayload>("/test", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("Test", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/FakeApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/FakeApi.cs
new file mode 100644
index 00000000000..afe11803933
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/FakeApi.cs
@@ -0,0 +1,3716 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Mime;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Client.Auth;
+using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Api
+{
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IFakeApiSync : IApiAccessor
+    {
+        #region Synchronous Operations
+        /// <summary>
+        /// Health check endpoint
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>HealthCheckResult</returns>
+        HealthCheckResult FakeHealthGet(int operationIndex = 0);
+
+        /// <summary>
+        /// Health check endpoint
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of HealthCheckResult</returns>
+        ApiResponse<HealthCheckResult> FakeHealthGetWithHttpInfo(int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer boolean types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>bool</returns>
+        bool FakeOuterBooleanSerialize(bool? body = default(bool?), int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer boolean types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of bool</returns>
+        ApiResponse<bool> FakeOuterBooleanSerializeWithHttpInfo(bool? body = default(bool?), int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of object with outer number type
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>OuterComposite</returns>
+        OuterComposite FakeOuterCompositeSerialize(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of object with outer number type
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of OuterComposite</returns>
+        ApiResponse<OuterComposite> FakeOuterCompositeSerializeWithHttpInfo(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer number types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>decimal</returns>
+        decimal FakeOuterNumberSerialize(decimal? body = default(decimal?), int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer number types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of decimal</returns>
+        ApiResponse<decimal> FakeOuterNumberSerializeWithHttpInfo(decimal? body = default(decimal?), int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer string types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>string</returns>
+        string FakeOuterStringSerialize(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer string types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of string</returns>
+        ApiResponse<string> FakeOuterStringSerializeWithHttpInfo(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0);
+        /// <summary>
+        /// Array of Enums
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;OuterEnum&gt;</returns>
+        List<OuterEnum> GetArrayOfEnums(int operationIndex = 0);
+
+        /// <summary>
+        /// Array of Enums
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;OuterEnum&gt;</returns>
+        ApiResponse<List<OuterEnum>> GetArrayOfEnumsWithHttpInfo(int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestBodyWithFileSchema(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestBodyWithFileSchemaWithHttpInfo(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestBodyWithQueryParams(string query, User user, int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestBodyWithQueryParamsWithHttpInfo(string query, User user, int operationIndex = 0);
+        /// <summary>
+        /// To test \&quot;client\&quot; model
+        /// </summary>
+        /// <remarks>
+        /// To test \&quot;client\&quot; model
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ModelClient</returns>
+        ModelClient TestClientModel(ModelClient modelClient, int operationIndex = 0);
+
+        /// <summary>
+        /// To test \&quot;client\&quot; model
+        /// </summary>
+        /// <remarks>
+        /// To test \&quot;client\&quot; model
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ModelClient</returns>
+        ApiResponse<ModelClient> TestClientModelWithHttpInfo(ModelClient modelClient, int operationIndex = 0);
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestEndpointParameters(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0);
+
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestEndpointParametersWithHttpInfo(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0);
+        /// <summary>
+        /// To test enum parameters
+        /// </summary>
+        /// <remarks>
+        /// To test enum parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestEnumParameters(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0);
+
+        /// <summary>
+        /// To test enum parameters
+        /// </summary>
+        /// <remarks>
+        /// To test enum parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestEnumParametersWithHttpInfo(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0);
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint to test group parameters (optional)
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestGroupParameters(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0);
+
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint to test group parameters (optional)
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestGroupParametersWithHttpInfo(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0);
+        /// <summary>
+        /// test inline additionalProperties
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestInlineAdditionalProperties(Dictionary<string, string> requestBody, int operationIndex = 0);
+
+        /// <summary>
+        /// test inline additionalProperties
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestInlineAdditionalPropertiesWithHttpInfo(Dictionary<string, string> requestBody, int operationIndex = 0);
+        /// <summary>
+        /// test inline free-form additionalProperties
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestInlineFreeformAdditionalProperties(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0);
+
+        /// <summary>
+        /// test inline free-form additionalProperties
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestInlineFreeformAdditionalPropertiesWithHttpInfo(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0);
+        /// <summary>
+        /// test json serialization of form data
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestJsonFormData(string param, string param2, int operationIndex = 0);
+
+        /// <summary>
+        /// test json serialization of form data
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestJsonFormDataWithHttpInfo(string param, string param2, int operationIndex = 0);
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// To test the collection format in query parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void TestQueryParameterCollectionFormat(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0);
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// To test the collection format in query parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> TestQueryParameterCollectionFormatWithHttpInfo(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0);
+        #endregion Synchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IFakeApiAsync : IApiAccessor
+    {
+        #region Asynchronous Operations
+        /// <summary>
+        /// Health check endpoint
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of HealthCheckResult</returns>
+        System.Threading.Tasks.Task<HealthCheckResult> FakeHealthGetAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Health check endpoint
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (HealthCheckResult)</returns>
+        System.Threading.Tasks.Task<ApiResponse<HealthCheckResult>> FakeHealthGetWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer boolean types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of bool</returns>
+        System.Threading.Tasks.Task<bool> FakeOuterBooleanSerializeAsync(bool? body = default(bool?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer boolean types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (bool)</returns>
+        System.Threading.Tasks.Task<ApiResponse<bool>> FakeOuterBooleanSerializeWithHttpInfoAsync(bool? body = default(bool?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of object with outer number type
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of OuterComposite</returns>
+        System.Threading.Tasks.Task<OuterComposite> FakeOuterCompositeSerializeAsync(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of object with outer number type
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (OuterComposite)</returns>
+        System.Threading.Tasks.Task<ApiResponse<OuterComposite>> FakeOuterCompositeSerializeWithHttpInfoAsync(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer number types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of decimal</returns>
+        System.Threading.Tasks.Task<decimal> FakeOuterNumberSerializeAsync(decimal? body = default(decimal?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer number types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (decimal)</returns>
+        System.Threading.Tasks.Task<ApiResponse<decimal>> FakeOuterNumberSerializeWithHttpInfoAsync(decimal? body = default(decimal?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer string types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of string</returns>
+        System.Threading.Tasks.Task<string> FakeOuterStringSerializeAsync(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// Test serialization of outer string types
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (string)</returns>
+        System.Threading.Tasks.Task<ApiResponse<string>> FakeOuterStringSerializeWithHttpInfoAsync(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Array of Enums
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;OuterEnum&gt;</returns>
+        System.Threading.Tasks.Task<List<OuterEnum>> GetArrayOfEnumsAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Array of Enums
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;OuterEnum&gt;)</returns>
+        System.Threading.Tasks.Task<ApiResponse<List<OuterEnum>>> GetArrayOfEnumsWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestBodyWithFileSchemaAsync(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestBodyWithFileSchemaWithHttpInfoAsync(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestBodyWithQueryParamsAsync(string query, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestBodyWithQueryParamsWithHttpInfoAsync(string query, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// To test \&quot;client\&quot; model
+        /// </summary>
+        /// <remarks>
+        /// To test \&quot;client\&quot; model
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ModelClient</returns>
+        System.Threading.Tasks.Task<ModelClient> TestClientModelAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// To test \&quot;client\&quot; model
+        /// </summary>
+        /// <remarks>
+        /// To test \&quot;client\&quot; model
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ModelClient)</returns>
+        System.Threading.Tasks.Task<ApiResponse<ModelClient>> TestClientModelWithHttpInfoAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestEndpointParametersAsync(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestEndpointParametersWithHttpInfoAsync(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// To test enum parameters
+        /// </summary>
+        /// <remarks>
+        /// To test enum parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestEnumParametersAsync(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// To test enum parameters
+        /// </summary>
+        /// <remarks>
+        /// To test enum parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestEnumParametersWithHttpInfoAsync(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint to test group parameters (optional)
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestGroupParametersAsync(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <remarks>
+        /// Fake endpoint to test group parameters (optional)
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestGroupParametersWithHttpInfoAsync(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// test inline additionalProperties
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestInlineAdditionalPropertiesAsync(Dictionary<string, string> requestBody, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// test inline additionalProperties
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestInlineAdditionalPropertiesWithHttpInfoAsync(Dictionary<string, string> requestBody, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// test inline free-form additionalProperties
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestInlineFreeformAdditionalPropertiesAsync(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// test inline free-form additionalProperties
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestInlineFreeformAdditionalPropertiesWithHttpInfoAsync(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// test json serialization of form data
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestJsonFormDataAsync(string param, string param2, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// test json serialization of form data
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestJsonFormDataWithHttpInfoAsync(string param, string param2, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// To test the collection format in query parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task TestQueryParameterCollectionFormatAsync(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <remarks>
+        /// To test the collection format in query parameters
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestQueryParameterCollectionFormatWithHttpInfoAsync(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        #endregion Asynchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IFakeApi : IFakeApiSync, IFakeApiAsync
+    {
+
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public partial class FakeApi : IFakeApi
+    {
+        private Org.OpenAPITools.Client.ExceptionFactory _exceptionFactory = (name, response) => null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public FakeApi() : this((string)null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public FakeApi(string basePath)
+        {
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                new Org.OpenAPITools.Client.Configuration { BasePath = basePath }
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeApi"/> class
+        /// using Configuration object
+        /// </summary>
+        /// <param name="configuration">An instance of Configuration</param>
+        /// <returns></returns>
+        public FakeApi(Org.OpenAPITools.Client.Configuration configuration)
+        {
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                configuration
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeApi"/> class
+        /// using a Configuration object and client instance.
+        /// </summary>
+        /// <param name="client">The client interface for synchronous API access.</param>
+        /// <param name="asyncClient">The client interface for asynchronous API access.</param>
+        /// <param name="configuration">The configuration object.</param>
+        public FakeApi(Org.OpenAPITools.Client.ISynchronousClient client, Org.OpenAPITools.Client.IAsynchronousClient asyncClient, Org.OpenAPITools.Client.IReadableConfiguration configuration)
+        {
+            if (client == null) throw new ArgumentNullException("client");
+            if (asyncClient == null) throw new ArgumentNullException("asyncClient");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Client = client;
+            this.AsynchronousClient = asyncClient;
+            this.Configuration = configuration;
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// The client for accessing this underlying API asynchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.IAsynchronousClient AsynchronousClient { get; set; }
+
+        /// <summary>
+        /// The client for accessing this underlying API synchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.ISynchronousClient Client { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        public string GetBasePath()
+        {
+            return this.Configuration.BasePath;
+        }
+
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        public Org.OpenAPITools.Client.IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        public Org.OpenAPITools.Client.ExceptionFactory ExceptionFactory
+        {
+            get
+            {
+                if (_exceptionFactory != null && _exceptionFactory.GetInvocationList().Length > 1)
+                {
+                    throw new InvalidOperationException("Multicast delegate for ExceptionFactory is unsupported.");
+                }
+                return _exceptionFactory;
+            }
+            set { _exceptionFactory = value; }
+        }
+
+        /// <summary>
+        /// Health check endpoint 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>HealthCheckResult</returns>
+        public HealthCheckResult FakeHealthGet(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<HealthCheckResult> localVarResponse = FakeHealthGetWithHttpInfo();
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Health check endpoint 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of HealthCheckResult</returns>
+        public Org.OpenAPITools.Client.ApiResponse<HealthCheckResult> FakeHealthGetWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "FakeApi.FakeHealthGet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<HealthCheckResult>("/fake/health", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeHealthGet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Health check endpoint 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of HealthCheckResult</returns>
+        public async System.Threading.Tasks.Task<HealthCheckResult> FakeHealthGetAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<HealthCheckResult> localVarResponse = await FakeHealthGetWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Health check endpoint 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (HealthCheckResult)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<HealthCheckResult>> FakeHealthGetWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "FakeApi.FakeHealthGet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<HealthCheckResult>("/fake/health", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeHealthGet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer boolean types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>bool</returns>
+        public bool FakeOuterBooleanSerialize(bool? body = default(bool?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<bool> localVarResponse = FakeOuterBooleanSerializeWithHttpInfo(body);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer boolean types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of bool</returns>
+        public Org.OpenAPITools.Client.ApiResponse<bool> FakeOuterBooleanSerializeWithHttpInfo(bool? body = default(bool?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = body;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterBooleanSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<bool>("/fake/outer/boolean", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterBooleanSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer boolean types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of bool</returns>
+        public async System.Threading.Tasks.Task<bool> FakeOuterBooleanSerializeAsync(bool? body = default(bool?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<bool> localVarResponse = await FakeOuterBooleanSerializeWithHttpInfoAsync(body, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer boolean types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input boolean as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (bool)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<bool>> FakeOuterBooleanSerializeWithHttpInfoAsync(bool? body = default(bool?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = body;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterBooleanSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<bool>("/fake/outer/boolean", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterBooleanSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of object with outer number type
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>OuterComposite</returns>
+        public OuterComposite FakeOuterCompositeSerialize(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<OuterComposite> localVarResponse = FakeOuterCompositeSerializeWithHttpInfo(outerComposite);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of object with outer number type
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of OuterComposite</returns>
+        public Org.OpenAPITools.Client.ApiResponse<OuterComposite> FakeOuterCompositeSerializeWithHttpInfo(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = outerComposite;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterCompositeSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<OuterComposite>("/fake/outer/composite", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterCompositeSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of object with outer number type
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of OuterComposite</returns>
+        public async System.Threading.Tasks.Task<OuterComposite> FakeOuterCompositeSerializeAsync(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<OuterComposite> localVarResponse = await FakeOuterCompositeSerializeWithHttpInfoAsync(outerComposite, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of object with outer number type
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="outerComposite">Input composite as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (OuterComposite)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<OuterComposite>> FakeOuterCompositeSerializeWithHttpInfoAsync(OuterComposite? outerComposite = default(OuterComposite?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = outerComposite;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterCompositeSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<OuterComposite>("/fake/outer/composite", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterCompositeSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer number types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>decimal</returns>
+        public decimal FakeOuterNumberSerialize(decimal? body = default(decimal?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<decimal> localVarResponse = FakeOuterNumberSerializeWithHttpInfo(body);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer number types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of decimal</returns>
+        public Org.OpenAPITools.Client.ApiResponse<decimal> FakeOuterNumberSerializeWithHttpInfo(decimal? body = default(decimal?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = body;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterNumberSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<decimal>("/fake/outer/number", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterNumberSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer number types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of decimal</returns>
+        public async System.Threading.Tasks.Task<decimal> FakeOuterNumberSerializeAsync(decimal? body = default(decimal?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<decimal> localVarResponse = await FakeOuterNumberSerializeWithHttpInfoAsync(body, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer number types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="body">Input number as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (decimal)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<decimal>> FakeOuterNumberSerializeWithHttpInfoAsync(decimal? body = default(decimal?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = body;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterNumberSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<decimal>("/fake/outer/number", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterNumberSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer string types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>string</returns>
+        public string FakeOuterStringSerialize(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<string> localVarResponse = FakeOuterStringSerializeWithHttpInfo(requiredStringUuid, body);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer string types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of string</returns>
+        public Org.OpenAPITools.Client.ApiResponse<string> FakeOuterStringSerializeWithHttpInfo(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "required_string_uuid", requiredStringUuid));
+            localVarRequestOptions.Data = body;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterStringSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<string>("/fake/outer/string", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterStringSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer string types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of string</returns>
+        public async System.Threading.Tasks.Task<string> FakeOuterStringSerializeAsync(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<string> localVarResponse = await FakeOuterStringSerializeWithHttpInfoAsync(requiredStringUuid, body, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        ///  Test serialization of outer string types
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringUuid">Required UUID String</param>
+        /// <param name="body">Input string as post body (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (string)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<string>> FakeOuterStringSerializeWithHttpInfoAsync(Guid requiredStringUuid, string? body = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "*/*"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "required_string_uuid", requiredStringUuid));
+            localVarRequestOptions.Data = body;
+
+            localVarRequestOptions.Operation = "FakeApi.FakeOuterStringSerialize";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<string>("/fake/outer/string", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FakeOuterStringSerialize", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Array of Enums 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;OuterEnum&gt;</returns>
+        public List<OuterEnum> GetArrayOfEnums(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<OuterEnum>> localVarResponse = GetArrayOfEnumsWithHttpInfo();
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Array of Enums 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;OuterEnum&gt;</returns>
+        public Org.OpenAPITools.Client.ApiResponse<List<OuterEnum>> GetArrayOfEnumsWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "FakeApi.GetArrayOfEnums";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<List<OuterEnum>>("/fake/array-of-enums", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetArrayOfEnums", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Array of Enums 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;OuterEnum&gt;</returns>
+        public async System.Threading.Tasks.Task<List<OuterEnum>> GetArrayOfEnumsAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<OuterEnum>> localVarResponse = await GetArrayOfEnumsWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Array of Enums 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;OuterEnum&gt;)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<List<OuterEnum>>> GetArrayOfEnumsWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "FakeApi.GetArrayOfEnums";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<List<OuterEnum>>("/fake/array-of-enums", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetArrayOfEnums", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestBodyWithFileSchema(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0)
+        {
+            TestBodyWithFileSchemaWithHttpInfo(fileSchemaTestClass);
+        }
+
+        /// <summary>
+        ///  For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestBodyWithFileSchemaWithHttpInfo(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0)
+        {
+            // verify the required parameter 'fileSchemaTestClass' is set
+            if (fileSchemaTestClass == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'fileSchemaTestClass' when calling FakeApi->TestBodyWithFileSchema");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = fileSchemaTestClass;
+
+            localVarRequestOptions.Operation = "FakeApi.TestBodyWithFileSchema";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Put<Object>("/fake/body-with-file-schema", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestBodyWithFileSchema", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestBodyWithFileSchemaAsync(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestBodyWithFileSchemaWithHttpInfoAsync(fileSchemaTestClass, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        ///  For this test, the body for this request much reference a schema named &#x60;File&#x60;.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="fileSchemaTestClass"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestBodyWithFileSchemaWithHttpInfoAsync(FileSchemaTestClass fileSchemaTestClass, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'fileSchemaTestClass' is set
+            if (fileSchemaTestClass == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'fileSchemaTestClass' when calling FakeApi->TestBodyWithFileSchema");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = fileSchemaTestClass;
+
+            localVarRequestOptions.Operation = "FakeApi.TestBodyWithFileSchema";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PutAsync<Object>("/fake/body-with-file-schema", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestBodyWithFileSchema", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestBodyWithQueryParams(string query, User user, int operationIndex = 0)
+        {
+            TestBodyWithQueryParamsWithHttpInfo(query, user);
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestBodyWithQueryParamsWithHttpInfo(string query, User user, int operationIndex = 0)
+        {
+            // verify the required parameter 'query' is set
+            if (query == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'query' when calling FakeApi->TestBodyWithQueryParams");
+            }
+
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling FakeApi->TestBodyWithQueryParams");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "query", query));
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "FakeApi.TestBodyWithQueryParams";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Put<Object>("/fake/body-with-query-params", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestBodyWithQueryParams", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestBodyWithQueryParamsAsync(string query, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestBodyWithQueryParamsWithHttpInfoAsync(query, user, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        ///  
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="query"></param>
+        /// <param name="user"></param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestBodyWithQueryParamsWithHttpInfoAsync(string query, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'query' is set
+            if (query == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'query' when calling FakeApi->TestBodyWithQueryParams");
+            }
+
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling FakeApi->TestBodyWithQueryParams");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "query", query));
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "FakeApi.TestBodyWithQueryParams";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PutAsync<Object>("/fake/body-with-query-params", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestBodyWithQueryParams", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// To test \&quot;client\&quot; model To test \&quot;client\&quot; model
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ModelClient</returns>
+        public ModelClient TestClientModel(ModelClient modelClient, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<ModelClient> localVarResponse = TestClientModelWithHttpInfo(modelClient);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// To test \&quot;client\&quot; model To test \&quot;client\&quot; model
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ModelClient</returns>
+        public Org.OpenAPITools.Client.ApiResponse<ModelClient> TestClientModelWithHttpInfo(ModelClient modelClient, int operationIndex = 0)
+        {
+            // verify the required parameter 'modelClient' is set
+            if (modelClient == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'modelClient' when calling FakeApi->TestClientModel");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = modelClient;
+
+            localVarRequestOptions.Operation = "FakeApi.TestClientModel";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Patch<ModelClient>("/fake", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestClientModel", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// To test \&quot;client\&quot; model To test \&quot;client\&quot; model
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ModelClient</returns>
+        public async System.Threading.Tasks.Task<ModelClient> TestClientModelAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<ModelClient> localVarResponse = await TestClientModelWithHttpInfoAsync(modelClient, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// To test \&quot;client\&quot; model To test \&quot;client\&quot; model
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ModelClient)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<ModelClient>> TestClientModelWithHttpInfoAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'modelClient' is set
+            if (modelClient == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'modelClient' when calling FakeApi->TestClientModel");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = modelClient;
+
+            localVarRequestOptions.Operation = "FakeApi.TestClientModel";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PatchAsync<ModelClient>("/fake", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestClientModel", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트  Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestEndpointParameters(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0)
+        {
+            TestEndpointParametersWithHttpInfo(number, varDouble, patternWithoutDelimiter, varByte, integer, int32, int64, varFloat, varString, binary, date, dateTime, password, callback);
+        }
+
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트  Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestEndpointParametersWithHttpInfo(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0)
+        {
+            // verify the required parameter 'patternWithoutDelimiter' is set
+            if (patternWithoutDelimiter == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'patternWithoutDelimiter' when calling FakeApi->TestEndpointParameters");
+            }
+
+            // verify the required parameter 'varByte' is set
+            if (varByte == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'varByte' when calling FakeApi->TestEndpointParameters");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            if (integer != null)
+            {
+                localVarRequestOptions.FormParameters.Add("integer", Org.OpenAPITools.Client.ClientUtils.ParameterToString(integer)); // form parameter
+            }
+            if (int32 != null)
+            {
+                localVarRequestOptions.FormParameters.Add("int32", Org.OpenAPITools.Client.ClientUtils.ParameterToString(int32)); // form parameter
+            }
+            if (int64 != null)
+            {
+                localVarRequestOptions.FormParameters.Add("int64", Org.OpenAPITools.Client.ClientUtils.ParameterToString(int64)); // form parameter
+            }
+            localVarRequestOptions.FormParameters.Add("number", Org.OpenAPITools.Client.ClientUtils.ParameterToString(number)); // form parameter
+            if (varFloat != null)
+            {
+                localVarRequestOptions.FormParameters.Add("float", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varFloat)); // form parameter
+            }
+            localVarRequestOptions.FormParameters.Add("double", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varDouble)); // form parameter
+            if (varString != null)
+            {
+                localVarRequestOptions.FormParameters.Add("string", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varString)); // form parameter
+            }
+            localVarRequestOptions.FormParameters.Add("pattern_without_delimiter", Org.OpenAPITools.Client.ClientUtils.ParameterToString(patternWithoutDelimiter)); // form parameter
+            localVarRequestOptions.FormParameters.Add("byte", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varByte)); // form parameter
+            if (binary != null)
+            {
+                localVarRequestOptions.FileParameters.Add("binary", binary);
+            }
+            if (date != null)
+            {
+                localVarRequestOptions.FormParameters.Add("date", Org.OpenAPITools.Client.ClientUtils.ParameterToString(date)); // form parameter
+            }
+            if (dateTime != null)
+            {
+                localVarRequestOptions.FormParameters.Add("dateTime", Org.OpenAPITools.Client.ClientUtils.ParameterToString(dateTime)); // form parameter
+            }
+            if (password != null)
+            {
+                localVarRequestOptions.FormParameters.Add("password", Org.OpenAPITools.Client.ClientUtils.ParameterToString(password)); // form parameter
+            }
+            if (callback != null)
+            {
+                localVarRequestOptions.FormParameters.Add("callback", Org.OpenAPITools.Client.ClientUtils.ParameterToString(callback)); // form parameter
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestEndpointParameters";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (http_basic_test) required
+            // http basic authentication required
+            if (!string.IsNullOrEmpty(this.Configuration.Username) || !string.IsNullOrEmpty(this.Configuration.Password) && !localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                localVarRequestOptions.HeaderParameters.Add("Authorization", "Basic " + Org.OpenAPITools.Client.ClientUtils.Base64Encode(this.Configuration.Username + ":" + this.Configuration.Password));
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/fake", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestEndpointParameters", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트  Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestEndpointParametersAsync(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestEndpointParametersWithHttpInfoAsync(number, varDouble, patternWithoutDelimiter, varByte, integer, int32, int64, varFloat, varString, binary, date, dateTime, password, callback, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트  Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="number">None</param>
+        /// <param name="varDouble">None</param>
+        /// <param name="patternWithoutDelimiter">None</param>
+        /// <param name="varByte">None</param>
+        /// <param name="integer">None (optional)</param>
+        /// <param name="int32">None (optional)</param>
+        /// <param name="int64">None (optional)</param>
+        /// <param name="varFloat">None (optional)</param>
+        /// <param name="varString">None (optional)</param>
+        /// <param name="binary">None (optional)</param>
+        /// <param name="date">None (optional)</param>
+        /// <param name="dateTime">None (optional, default to &quot;2010-02-01T10:20:10.111110+01:00&quot;)</param>
+        /// <param name="password">None (optional)</param>
+        /// <param name="callback">None (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestEndpointParametersWithHttpInfoAsync(decimal number, double varDouble, string patternWithoutDelimiter, byte[] varByte, int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), float? varFloat = default(float?), string? varString = default(string?), System.IO.Stream? binary = default(System.IO.Stream?), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), string? password = default(string?), string? callback = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'patternWithoutDelimiter' is set
+            if (patternWithoutDelimiter == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'patternWithoutDelimiter' when calling FakeApi->TestEndpointParameters");
+            }
+
+            // verify the required parameter 'varByte' is set
+            if (varByte == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'varByte' when calling FakeApi->TestEndpointParameters");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            if (integer != null)
+            {
+                localVarRequestOptions.FormParameters.Add("integer", Org.OpenAPITools.Client.ClientUtils.ParameterToString(integer)); // form parameter
+            }
+            if (int32 != null)
+            {
+                localVarRequestOptions.FormParameters.Add("int32", Org.OpenAPITools.Client.ClientUtils.ParameterToString(int32)); // form parameter
+            }
+            if (int64 != null)
+            {
+                localVarRequestOptions.FormParameters.Add("int64", Org.OpenAPITools.Client.ClientUtils.ParameterToString(int64)); // form parameter
+            }
+            localVarRequestOptions.FormParameters.Add("number", Org.OpenAPITools.Client.ClientUtils.ParameterToString(number)); // form parameter
+            if (varFloat != null)
+            {
+                localVarRequestOptions.FormParameters.Add("float", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varFloat)); // form parameter
+            }
+            localVarRequestOptions.FormParameters.Add("double", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varDouble)); // form parameter
+            if (varString != null)
+            {
+                localVarRequestOptions.FormParameters.Add("string", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varString)); // form parameter
+            }
+            localVarRequestOptions.FormParameters.Add("pattern_without_delimiter", Org.OpenAPITools.Client.ClientUtils.ParameterToString(patternWithoutDelimiter)); // form parameter
+            localVarRequestOptions.FormParameters.Add("byte", Org.OpenAPITools.Client.ClientUtils.ParameterToString(varByte)); // form parameter
+            if (binary != null)
+            {
+                localVarRequestOptions.FileParameters.Add("binary", binary);
+            }
+            if (date != null)
+            {
+                localVarRequestOptions.FormParameters.Add("date", Org.OpenAPITools.Client.ClientUtils.ParameterToString(date)); // form parameter
+            }
+            if (dateTime != null)
+            {
+                localVarRequestOptions.FormParameters.Add("dateTime", Org.OpenAPITools.Client.ClientUtils.ParameterToString(dateTime)); // form parameter
+            }
+            if (password != null)
+            {
+                localVarRequestOptions.FormParameters.Add("password", Org.OpenAPITools.Client.ClientUtils.ParameterToString(password)); // form parameter
+            }
+            if (callback != null)
+            {
+                localVarRequestOptions.FormParameters.Add("callback", Org.OpenAPITools.Client.ClientUtils.ParameterToString(callback)); // form parameter
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestEndpointParameters";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (http_basic_test) required
+            // http basic authentication required
+            if (!string.IsNullOrEmpty(this.Configuration.Username) || !string.IsNullOrEmpty(this.Configuration.Password) && !localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                localVarRequestOptions.HeaderParameters.Add("Authorization", "Basic " + Org.OpenAPITools.Client.ClientUtils.Base64Encode(this.Configuration.Username + ":" + this.Configuration.Password));
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/fake", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestEndpointParameters", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// To test enum parameters To test enum parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestEnumParameters(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0)
+        {
+            TestEnumParametersWithHttpInfo(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
+        }
+
+        /// <summary>
+        /// To test enum parameters To test enum parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestEnumParametersWithHttpInfo(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            if (enumQueryStringArray != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("multi", "enum_query_string_array", enumQueryStringArray));
+            }
+            if (enumQueryString != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "enum_query_string", enumQueryString));
+            }
+            if (enumQueryInteger != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "enum_query_integer", enumQueryInteger));
+            }
+            if (enumQueryDouble != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "enum_query_double", enumQueryDouble));
+            }
+            if (enumHeaderStringArray != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("enum_header_string_array", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumHeaderStringArray)); // header parameter
+            }
+            if (enumHeaderString != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("enum_header_string", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumHeaderString)); // header parameter
+            }
+            if (enumFormStringArray != null)
+            {
+                localVarRequestOptions.FormParameters.Add("enum_form_string_array", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumFormStringArray)); // form parameter
+            }
+            if (enumFormString != null)
+            {
+                localVarRequestOptions.FormParameters.Add("enum_form_string", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumFormString)); // form parameter
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestEnumParameters";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<Object>("/fake", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestEnumParameters", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// To test enum parameters To test enum parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestEnumParametersAsync(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestEnumParametersWithHttpInfoAsync(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// To test enum parameters To test enum parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="enumHeaderStringArray">Header parameter enum test (string array) (optional)</param>
+        /// <param name="enumHeaderString">Header parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryStringArray">Query parameter enum test (string array) (optional)</param>
+        /// <param name="enumQueryString">Query parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="enumQueryInteger">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumQueryDouble">Query parameter enum test (double) (optional)</param>
+        /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
+        /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestEnumParametersWithHttpInfoAsync(List<string>? enumHeaderStringArray = default(List<string>?), string? enumHeaderString = default(string?), List<string>? enumQueryStringArray = default(List<string>?), string? enumQueryString = default(string?), int? enumQueryInteger = default(int?), double? enumQueryDouble = default(double?), List<string>? enumFormStringArray = default(List<string>?), string? enumFormString = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            if (enumQueryStringArray != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("multi", "enum_query_string_array", enumQueryStringArray));
+            }
+            if (enumQueryString != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "enum_query_string", enumQueryString));
+            }
+            if (enumQueryInteger != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "enum_query_integer", enumQueryInteger));
+            }
+            if (enumQueryDouble != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "enum_query_double", enumQueryDouble));
+            }
+            if (enumHeaderStringArray != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("enum_header_string_array", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumHeaderStringArray)); // header parameter
+            }
+            if (enumHeaderString != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("enum_header_string", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumHeaderString)); // header parameter
+            }
+            if (enumFormStringArray != null)
+            {
+                localVarRequestOptions.FormParameters.Add("enum_form_string_array", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumFormStringArray)); // form parameter
+            }
+            if (enumFormString != null)
+            {
+                localVarRequestOptions.FormParameters.Add("enum_form_string", Org.OpenAPITools.Client.ClientUtils.ParameterToString(enumFormString)); // form parameter
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestEnumParameters";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<Object>("/fake", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestEnumParameters", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional) Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestGroupParameters(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0)
+        {
+            TestGroupParametersWithHttpInfo(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group);
+        }
+
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional) Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestGroupParametersWithHttpInfo(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "required_string_group", requiredStringGroup));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "required_int64_group", requiredInt64Group));
+            if (stringGroup != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "string_group", stringGroup));
+            }
+            if (int64Group != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "int64_group", int64Group));
+            }
+            localVarRequestOptions.HeaderParameters.Add("required_boolean_group", Org.OpenAPITools.Client.ClientUtils.ParameterToString(requiredBooleanGroup)); // header parameter
+            if (booleanGroup != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("boolean_group", Org.OpenAPITools.Client.ClientUtils.ParameterToString(booleanGroup)); // header parameter
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestGroupParameters";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (bearer_test) required
+            // bearer authentication required
+            if (!string.IsNullOrEmpty(this.Configuration.AccessToken) && !localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Delete<Object>("/fake", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestGroupParameters", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional) Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestGroupParametersAsync(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestGroupParametersWithHttpInfoAsync(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Fake endpoint to test group parameters (optional) Fake endpoint to test group parameters (optional)
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requiredStringGroup">Required String in group parameters</param>
+        /// <param name="requiredBooleanGroup">Required Boolean in group parameters</param>
+        /// <param name="requiredInt64Group">Required Integer in group parameters</param>
+        /// <param name="stringGroup">String in group parameters (optional)</param>
+        /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
+        /// <param name="int64Group">Integer in group parameters (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestGroupParametersWithHttpInfoAsync(int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int? stringGroup = default(int?), bool? booleanGroup = default(bool?), long? int64Group = default(long?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "required_string_group", requiredStringGroup));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "required_int64_group", requiredInt64Group));
+            if (stringGroup != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "string_group", stringGroup));
+            }
+            if (int64Group != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "int64_group", int64Group));
+            }
+            localVarRequestOptions.HeaderParameters.Add("required_boolean_group", Org.OpenAPITools.Client.ClientUtils.ParameterToString(requiredBooleanGroup)); // header parameter
+            if (booleanGroup != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("boolean_group", Org.OpenAPITools.Client.ClientUtils.ParameterToString(booleanGroup)); // header parameter
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestGroupParameters";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (bearer_test) required
+            // bearer authentication required
+            if (!string.IsNullOrEmpty(this.Configuration.AccessToken) && !localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.DeleteAsync<Object>("/fake", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestGroupParameters", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// test inline additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestInlineAdditionalProperties(Dictionary<string, string> requestBody, int operationIndex = 0)
+        {
+            TestInlineAdditionalPropertiesWithHttpInfo(requestBody);
+        }
+
+        /// <summary>
+        /// test inline additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestInlineAdditionalPropertiesWithHttpInfo(Dictionary<string, string> requestBody, int operationIndex = 0)
+        {
+            // verify the required parameter 'requestBody' is set
+            if (requestBody == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requestBody' when calling FakeApi->TestInlineAdditionalProperties");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = requestBody;
+
+            localVarRequestOptions.Operation = "FakeApi.TestInlineAdditionalProperties";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/fake/inline-additionalProperties", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestInlineAdditionalProperties", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// test inline additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestInlineAdditionalPropertiesAsync(Dictionary<string, string> requestBody, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestInlineAdditionalPropertiesWithHttpInfoAsync(requestBody, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// test inline additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="requestBody">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestInlineAdditionalPropertiesWithHttpInfoAsync(Dictionary<string, string> requestBody, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'requestBody' is set
+            if (requestBody == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requestBody' when calling FakeApi->TestInlineAdditionalProperties");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = requestBody;
+
+            localVarRequestOptions.Operation = "FakeApi.TestInlineAdditionalProperties";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/fake/inline-additionalProperties", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestInlineAdditionalProperties", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// test inline free-form additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestInlineFreeformAdditionalProperties(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0)
+        {
+            TestInlineFreeformAdditionalPropertiesWithHttpInfo(testInlineFreeformAdditionalPropertiesRequest);
+        }
+
+        /// <summary>
+        /// test inline free-form additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestInlineFreeformAdditionalPropertiesWithHttpInfo(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0)
+        {
+            // verify the required parameter 'testInlineFreeformAdditionalPropertiesRequest' is set
+            if (testInlineFreeformAdditionalPropertiesRequest == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'testInlineFreeformAdditionalPropertiesRequest' when calling FakeApi->TestInlineFreeformAdditionalProperties");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = testInlineFreeformAdditionalPropertiesRequest;
+
+            localVarRequestOptions.Operation = "FakeApi.TestInlineFreeformAdditionalProperties";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/fake/inline-freeform-additionalProperties", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestInlineFreeformAdditionalProperties", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// test inline free-form additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestInlineFreeformAdditionalPropertiesAsync(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestInlineFreeformAdditionalPropertiesWithHttpInfoAsync(testInlineFreeformAdditionalPropertiesRequest, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// test inline free-form additionalProperties 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="testInlineFreeformAdditionalPropertiesRequest">request body</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestInlineFreeformAdditionalPropertiesWithHttpInfoAsync(TestInlineFreeformAdditionalPropertiesRequest testInlineFreeformAdditionalPropertiesRequest, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'testInlineFreeformAdditionalPropertiesRequest' is set
+            if (testInlineFreeformAdditionalPropertiesRequest == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'testInlineFreeformAdditionalPropertiesRequest' when calling FakeApi->TestInlineFreeformAdditionalProperties");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = testInlineFreeformAdditionalPropertiesRequest;
+
+            localVarRequestOptions.Operation = "FakeApi.TestInlineFreeformAdditionalProperties";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/fake/inline-freeform-additionalProperties", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestInlineFreeformAdditionalProperties", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// test json serialization of form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestJsonFormData(string param, string param2, int operationIndex = 0)
+        {
+            TestJsonFormDataWithHttpInfo(param, param2);
+        }
+
+        /// <summary>
+        /// test json serialization of form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestJsonFormDataWithHttpInfo(string param, string param2, int operationIndex = 0)
+        {
+            // verify the required parameter 'param' is set
+            if (param == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'param' when calling FakeApi->TestJsonFormData");
+            }
+
+            // verify the required parameter 'param2' is set
+            if (param2 == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'param2' when calling FakeApi->TestJsonFormData");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.FormParameters.Add("param", Org.OpenAPITools.Client.ClientUtils.ParameterToString(param)); // form parameter
+            localVarRequestOptions.FormParameters.Add("param2", Org.OpenAPITools.Client.ClientUtils.ParameterToString(param2)); // form parameter
+
+            localVarRequestOptions.Operation = "FakeApi.TestJsonFormData";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<Object>("/fake/jsonFormData", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestJsonFormData", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// test json serialization of form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestJsonFormDataAsync(string param, string param2, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestJsonFormDataWithHttpInfoAsync(param, param2, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// test json serialization of form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="param">field1</param>
+        /// <param name="param2">field2</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestJsonFormDataWithHttpInfoAsync(string param, string param2, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'param' is set
+            if (param == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'param' when calling FakeApi->TestJsonFormData");
+            }
+
+            // verify the required parameter 'param2' is set
+            if (param2 == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'param2' when calling FakeApi->TestJsonFormData");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.FormParameters.Add("param", Org.OpenAPITools.Client.ClientUtils.ParameterToString(param)); // form parameter
+            localVarRequestOptions.FormParameters.Add("param2", Org.OpenAPITools.Client.ClientUtils.ParameterToString(param2)); // form parameter
+
+            localVarRequestOptions.Operation = "FakeApi.TestJsonFormData";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<Object>("/fake/jsonFormData", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestJsonFormData", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  To test the collection format in query parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void TestQueryParameterCollectionFormat(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0)
+        {
+            TestQueryParameterCollectionFormatWithHttpInfo(pipe, ioutil, http, url, context, requiredNotNullable, requiredNullable, notRequiredNotNullable, notRequiredNullable);
+        }
+
+        /// <summary>
+        ///  To test the collection format in query parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> TestQueryParameterCollectionFormatWithHttpInfo(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0)
+        {
+            // verify the required parameter 'pipe' is set
+            if (pipe == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'pipe' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'ioutil' is set
+            if (ioutil == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'ioutil' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'http' is set
+            if (http == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'http' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'url' is set
+            if (url == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'url' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'context' is set
+            if (context == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'context' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'requiredNotNullable' is set
+            if (requiredNotNullable == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requiredNotNullable' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'requiredNullable' is set
+            if (requiredNullable == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requiredNullable' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("multi", "pipe", pipe));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "ioutil", ioutil));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("ssv", "http", http));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "url", url));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("multi", "context", context));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "requiredNotNullable", requiredNotNullable));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "requiredNullable", requiredNullable));
+            if (notRequiredNotNullable != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "notRequiredNotNullable", notRequiredNotNullable));
+            }
+            if (notRequiredNullable != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "notRequiredNullable", notRequiredNullable));
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestQueryParameterCollectionFormat";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Put<Object>("/fake/test-query-parameters", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestQueryParameterCollectionFormat", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        ///  To test the collection format in query parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task TestQueryParameterCollectionFormatAsync(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await TestQueryParameterCollectionFormatWithHttpInfoAsync(pipe, ioutil, http, url, context, requiredNotNullable, requiredNullable, notRequiredNotNullable, notRequiredNullable, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        ///  To test the collection format in query parameters
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pipe"></param>
+        /// <param name="ioutil"></param>
+        /// <param name="http"></param>
+        /// <param name="url"></param>
+        /// <param name="context"></param>
+        /// <param name="requiredNotNullable"></param>
+        /// <param name="requiredNullable"></param>
+        /// <param name="notRequiredNotNullable"> (optional)</param>
+        /// <param name="notRequiredNullable"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> TestQueryParameterCollectionFormatWithHttpInfoAsync(List<string> pipe, List<string> ioutil, List<string> http, List<string> url, List<string> context, string requiredNotNullable, string requiredNullable, string? notRequiredNotNullable = default(string?), string? notRequiredNullable = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'pipe' is set
+            if (pipe == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'pipe' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'ioutil' is set
+            if (ioutil == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'ioutil' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'http' is set
+            if (http == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'http' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'url' is set
+            if (url == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'url' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'context' is set
+            if (context == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'context' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'requiredNotNullable' is set
+            if (requiredNotNullable == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requiredNotNullable' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+            // verify the required parameter 'requiredNullable' is set
+            if (requiredNullable == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requiredNullable' when calling FakeApi->TestQueryParameterCollectionFormat");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("multi", "pipe", pipe));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "ioutil", ioutil));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("ssv", "http", http));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "url", url));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("multi", "context", context));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "requiredNotNullable", requiredNotNullable));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "requiredNullable", requiredNullable));
+            if (notRequiredNotNullable != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "notRequiredNotNullable", notRequiredNotNullable));
+            }
+            if (notRequiredNullable != null)
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "notRequiredNullable", notRequiredNullable));
+            }
+
+            localVarRequestOptions.Operation = "FakeApi.TestQueryParameterCollectionFormat";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PutAsync<Object>("/fake/test-query-parameters", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestQueryParameterCollectionFormat", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs
new file mode 100644
index 00000000000..dd74c66d154
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs
@@ -0,0 +1,364 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Mime;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Client.Auth;
+using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Api
+{
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IFakeClassnameTags123ApiSync : IApiAccessor
+    {
+        #region Synchronous Operations
+        /// <summary>
+        /// To test class name in snake case
+        /// </summary>
+        /// <remarks>
+        /// To test class name in snake case
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ModelClient</returns>
+        ModelClient TestClassname(ModelClient modelClient, int operationIndex = 0);
+
+        /// <summary>
+        /// To test class name in snake case
+        /// </summary>
+        /// <remarks>
+        /// To test class name in snake case
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ModelClient</returns>
+        ApiResponse<ModelClient> TestClassnameWithHttpInfo(ModelClient modelClient, int operationIndex = 0);
+        #endregion Synchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IFakeClassnameTags123ApiAsync : IApiAccessor
+    {
+        #region Asynchronous Operations
+        /// <summary>
+        /// To test class name in snake case
+        /// </summary>
+        /// <remarks>
+        /// To test class name in snake case
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ModelClient</returns>
+        System.Threading.Tasks.Task<ModelClient> TestClassnameAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// To test class name in snake case
+        /// </summary>
+        /// <remarks>
+        /// To test class name in snake case
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ModelClient)</returns>
+        System.Threading.Tasks.Task<ApiResponse<ModelClient>> TestClassnameWithHttpInfoAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        #endregion Asynchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IFakeClassnameTags123Api : IFakeClassnameTags123ApiSync, IFakeClassnameTags123ApiAsync
+    {
+
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public partial class FakeClassnameTags123Api : IFakeClassnameTags123Api
+    {
+        private Org.OpenAPITools.Client.ExceptionFactory _exceptionFactory = (name, response) => null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeClassnameTags123Api"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public FakeClassnameTags123Api() : this((string)null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeClassnameTags123Api"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public FakeClassnameTags123Api(string basePath)
+        {
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                new Org.OpenAPITools.Client.Configuration { BasePath = basePath }
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeClassnameTags123Api"/> class
+        /// using Configuration object
+        /// </summary>
+        /// <param name="configuration">An instance of Configuration</param>
+        /// <returns></returns>
+        public FakeClassnameTags123Api(Org.OpenAPITools.Client.Configuration configuration)
+        {
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                configuration
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FakeClassnameTags123Api"/> class
+        /// using a Configuration object and client instance.
+        /// </summary>
+        /// <param name="client">The client interface for synchronous API access.</param>
+        /// <param name="asyncClient">The client interface for asynchronous API access.</param>
+        /// <param name="configuration">The configuration object.</param>
+        public FakeClassnameTags123Api(Org.OpenAPITools.Client.ISynchronousClient client, Org.OpenAPITools.Client.IAsynchronousClient asyncClient, Org.OpenAPITools.Client.IReadableConfiguration configuration)
+        {
+            if (client == null) throw new ArgumentNullException("client");
+            if (asyncClient == null) throw new ArgumentNullException("asyncClient");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Client = client;
+            this.AsynchronousClient = asyncClient;
+            this.Configuration = configuration;
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// The client for accessing this underlying API asynchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.IAsynchronousClient AsynchronousClient { get; set; }
+
+        /// <summary>
+        /// The client for accessing this underlying API synchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.ISynchronousClient Client { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        public string GetBasePath()
+        {
+            return this.Configuration.BasePath;
+        }
+
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        public Org.OpenAPITools.Client.IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        public Org.OpenAPITools.Client.ExceptionFactory ExceptionFactory
+        {
+            get
+            {
+                if (_exceptionFactory != null && _exceptionFactory.GetInvocationList().Length > 1)
+                {
+                    throw new InvalidOperationException("Multicast delegate for ExceptionFactory is unsupported.");
+                }
+                return _exceptionFactory;
+            }
+            set { _exceptionFactory = value; }
+        }
+
+        /// <summary>
+        /// To test class name in snake case To test class name in snake case
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ModelClient</returns>
+        public ModelClient TestClassname(ModelClient modelClient, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<ModelClient> localVarResponse = TestClassnameWithHttpInfo(modelClient);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// To test class name in snake case To test class name in snake case
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ModelClient</returns>
+        public Org.OpenAPITools.Client.ApiResponse<ModelClient> TestClassnameWithHttpInfo(ModelClient modelClient, int operationIndex = 0)
+        {
+            // verify the required parameter 'modelClient' is set
+            if (modelClient == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'modelClient' when calling FakeClassnameTags123Api->TestClassname");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = modelClient;
+
+            localVarRequestOptions.Operation = "FakeClassnameTags123Api.TestClassname";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (api_key_query) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("api_key_query")))
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "api_key_query", this.Configuration.GetApiKeyWithPrefix("api_key_query")));
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Patch<ModelClient>("/fake_classname_test", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestClassname", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// To test class name in snake case To test class name in snake case
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ModelClient</returns>
+        public async System.Threading.Tasks.Task<ModelClient> TestClassnameAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<ModelClient> localVarResponse = await TestClassnameWithHttpInfoAsync(modelClient, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// To test class name in snake case To test class name in snake case
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="modelClient">client model</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ModelClient)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<ModelClient>> TestClassnameWithHttpInfoAsync(ModelClient modelClient, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'modelClient' is set
+            if (modelClient == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'modelClient' when calling FakeClassnameTags123Api->TestClassname");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = modelClient;
+
+            localVarRequestOptions.Operation = "FakeClassnameTags123Api.TestClassname";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (api_key_query) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("api_key_query")))
+            {
+                localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "api_key_query", this.Configuration.GetApiKeyWithPrefix("api_key_query")));
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PatchAsync<ModelClient>("/fake_classname_test", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("TestClassname", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/PetApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/PetApi.cs
new file mode 100644
index 00000000000..cb1a5d8b24d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/PetApi.cs
@@ -0,0 +1,2336 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Mime;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Client.Auth;
+using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Api
+{
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IPetApiSync : IApiAccessor
+    {
+        #region Synchronous Operations
+        /// <summary>
+        /// Add a new pet to the store
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void AddPet(Pet pet, int operationIndex = 0);
+
+        /// <summary>
+        /// Add a new pet to the store
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> AddPetWithHttpInfo(Pet pet, int operationIndex = 0);
+        /// <summary>
+        /// Deletes a pet
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void DeletePet(long petId, string? apiKey = default(string?), int operationIndex = 0);
+
+        /// <summary>
+        /// Deletes a pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> DeletePetWithHttpInfo(long petId, string? apiKey = default(string?), int operationIndex = 0);
+        /// <summary>
+        /// Finds Pets by status
+        /// </summary>
+        /// <remarks>
+        /// Multiple status values can be provided with comma separated strings
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;Pet&gt;</returns>
+        List<Pet> FindPetsByStatus(List<string> status, int operationIndex = 0);
+
+        /// <summary>
+        /// Finds Pets by status
+        /// </summary>
+        /// <remarks>
+        /// Multiple status values can be provided with comma separated strings
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;Pet&gt;</returns>
+        ApiResponse<List<Pet>> FindPetsByStatusWithHttpInfo(List<string> status, int operationIndex = 0);
+        /// <summary>
+        /// Finds Pets by tags
+        /// </summary>
+        /// <remarks>
+        /// Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;Pet&gt;</returns>
+        [Obsolete]
+        List<Pet> FindPetsByTags(List<string> tags, int operationIndex = 0);
+
+        /// <summary>
+        /// Finds Pets by tags
+        /// </summary>
+        /// <remarks>
+        /// Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;Pet&gt;</returns>
+        [Obsolete]
+        ApiResponse<List<Pet>> FindPetsByTagsWithHttpInfo(List<string> tags, int operationIndex = 0);
+        /// <summary>
+        /// Find pet by ID
+        /// </summary>
+        /// <remarks>
+        /// Returns a single pet
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Pet</returns>
+        Pet GetPetById(long petId, int operationIndex = 0);
+
+        /// <summary>
+        /// Find pet by ID
+        /// </summary>
+        /// <remarks>
+        /// Returns a single pet
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Pet</returns>
+        ApiResponse<Pet> GetPetByIdWithHttpInfo(long petId, int operationIndex = 0);
+        /// <summary>
+        /// Update an existing pet
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void UpdatePet(Pet pet, int operationIndex = 0);
+
+        /// <summary>
+        /// Update an existing pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> UpdatePetWithHttpInfo(Pet pet, int operationIndex = 0);
+        /// <summary>
+        /// Updates a pet in the store with form data
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void UpdatePetWithForm(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0);
+
+        /// <summary>
+        /// Updates a pet in the store with form data
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> UpdatePetWithFormWithHttpInfo(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0);
+        /// <summary>
+        /// uploads an image
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse</returns>
+        ApiResponse UploadFile(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0);
+
+        /// <summary>
+        /// uploads an image
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ApiResponse</returns>
+        ApiResponse<ApiResponse> UploadFileWithHttpInfo(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0);
+        /// <summary>
+        /// uploads an image (required)
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse</returns>
+        ApiResponse UploadFileWithRequiredFile(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0);
+
+        /// <summary>
+        /// uploads an image (required)
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ApiResponse</returns>
+        ApiResponse<ApiResponse> UploadFileWithRequiredFileWithHttpInfo(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0);
+        #endregion Synchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IPetApiAsync : IApiAccessor
+    {
+        #region Asynchronous Operations
+        /// <summary>
+        /// Add a new pet to the store
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task AddPetAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Add a new pet to the store
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> AddPetWithHttpInfoAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Deletes a pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task DeletePetAsync(long petId, string? apiKey = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Deletes a pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> DeletePetWithHttpInfoAsync(long petId, string? apiKey = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Finds Pets by status
+        /// </summary>
+        /// <remarks>
+        /// Multiple status values can be provided with comma separated strings
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;Pet&gt;</returns>
+        System.Threading.Tasks.Task<List<Pet>> FindPetsByStatusAsync(List<string> status, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Finds Pets by status
+        /// </summary>
+        /// <remarks>
+        /// Multiple status values can be provided with comma separated strings
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;Pet&gt;)</returns>
+        System.Threading.Tasks.Task<ApiResponse<List<Pet>>> FindPetsByStatusWithHttpInfoAsync(List<string> status, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Finds Pets by tags
+        /// </summary>
+        /// <remarks>
+        /// Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;Pet&gt;</returns>
+        [Obsolete]
+        System.Threading.Tasks.Task<List<Pet>> FindPetsByTagsAsync(List<string> tags, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Finds Pets by tags
+        /// </summary>
+        /// <remarks>
+        /// Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;Pet&gt;)</returns>
+        [Obsolete]
+        System.Threading.Tasks.Task<ApiResponse<List<Pet>>> FindPetsByTagsWithHttpInfoAsync(List<string> tags, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Find pet by ID
+        /// </summary>
+        /// <remarks>
+        /// Returns a single pet
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Pet</returns>
+        System.Threading.Tasks.Task<Pet> GetPetByIdAsync(long petId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Find pet by ID
+        /// </summary>
+        /// <remarks>
+        /// Returns a single pet
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Pet)</returns>
+        System.Threading.Tasks.Task<ApiResponse<Pet>> GetPetByIdWithHttpInfoAsync(long petId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Update an existing pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task UpdatePetAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Update an existing pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> UpdatePetWithHttpInfoAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Updates a pet in the store with form data
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task UpdatePetWithFormAsync(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Updates a pet in the store with form data
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> UpdatePetWithFormWithHttpInfoAsync(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// uploads an image
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse> UploadFileAsync(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// uploads an image
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ApiResponse)</returns>
+        System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileWithHttpInfoAsync(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// uploads an image (required)
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse> UploadFileWithRequiredFileAsync(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// uploads an image (required)
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ApiResponse)</returns>
+        System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileWithRequiredFileWithHttpInfoAsync(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        #endregion Asynchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IPetApi : IPetApiSync, IPetApiAsync
+    {
+
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public partial class PetApi : IPetApi
+    {
+        private Org.OpenAPITools.Client.ExceptionFactory _exceptionFactory = (name, response) => null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PetApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public PetApi() : this((string)null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PetApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public PetApi(string basePath)
+        {
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                new Org.OpenAPITools.Client.Configuration { BasePath = basePath }
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PetApi"/> class
+        /// using Configuration object
+        /// </summary>
+        /// <param name="configuration">An instance of Configuration</param>
+        /// <returns></returns>
+        public PetApi(Org.OpenAPITools.Client.Configuration configuration)
+        {
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                configuration
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PetApi"/> class
+        /// using a Configuration object and client instance.
+        /// </summary>
+        /// <param name="client">The client interface for synchronous API access.</param>
+        /// <param name="asyncClient">The client interface for asynchronous API access.</param>
+        /// <param name="configuration">The configuration object.</param>
+        public PetApi(Org.OpenAPITools.Client.ISynchronousClient client, Org.OpenAPITools.Client.IAsynchronousClient asyncClient, Org.OpenAPITools.Client.IReadableConfiguration configuration)
+        {
+            if (client == null) throw new ArgumentNullException("client");
+            if (asyncClient == null) throw new ArgumentNullException("asyncClient");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Client = client;
+            this.AsynchronousClient = asyncClient;
+            this.Configuration = configuration;
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// The client for accessing this underlying API asynchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.IAsynchronousClient AsynchronousClient { get; set; }
+
+        /// <summary>
+        /// The client for accessing this underlying API synchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.ISynchronousClient Client { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        public string GetBasePath()
+        {
+            return this.Configuration.BasePath;
+        }
+
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        public Org.OpenAPITools.Client.IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        public Org.OpenAPITools.Client.ExceptionFactory ExceptionFactory
+        {
+            get
+            {
+                if (_exceptionFactory != null && _exceptionFactory.GetInvocationList().Length > 1)
+                {
+                    throw new InvalidOperationException("Multicast delegate for ExceptionFactory is unsupported.");
+                }
+                return _exceptionFactory;
+            }
+            set { _exceptionFactory = value; }
+        }
+
+        /// <summary>
+        /// Add a new pet to the store 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void AddPet(Pet pet, int operationIndex = 0)
+        {
+            AddPetWithHttpInfo(pet);
+        }
+
+        /// <summary>
+        /// Add a new pet to the store 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> AddPetWithHttpInfo(Pet pet, int operationIndex = 0)
+        {
+            // verify the required parameter 'pet' is set
+            if (pet == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'pet' when calling PetApi->AddPet");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json",
+                "application/xml"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = pet;
+
+            localVarRequestOptions.Operation = "PetApi.AddPet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "POST", "/pet", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/pet", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("AddPet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Add a new pet to the store 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task AddPetAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await AddPetWithHttpInfoAsync(pet, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Add a new pet to the store 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> AddPetWithHttpInfoAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'pet' is set
+            if (pet == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'pet' when calling PetApi->AddPet");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json", 
+                "application/xml"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = pet;
+
+            localVarRequestOptions.Operation = "PetApi.AddPet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "POST", "/pet", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/pet", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("AddPet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Deletes a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void DeletePet(long petId, string? apiKey = default(string?), int operationIndex = 0)
+        {
+            DeletePetWithHttpInfo(petId, apiKey);
+        }
+
+        /// <summary>
+        /// Deletes a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> DeletePetWithHttpInfo(long petId, string? apiKey = default(string?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (apiKey != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("api_key", Org.OpenAPITools.Client.ClientUtils.ParameterToString(apiKey)); // header parameter
+            }
+
+            localVarRequestOptions.Operation = "PetApi.DeletePet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Delete<Object>("/pet/{petId}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("DeletePet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Deletes a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task DeletePetAsync(long petId, string? apiKey = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await DeletePetWithHttpInfoAsync(petId, apiKey, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Deletes a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">Pet id to delete</param>
+        /// <param name="apiKey"> (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> DeletePetWithHttpInfoAsync(long petId, string? apiKey = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (apiKey != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("api_key", Org.OpenAPITools.Client.ClientUtils.ParameterToString(apiKey)); // header parameter
+            }
+
+            localVarRequestOptions.Operation = "PetApi.DeletePet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.DeleteAsync<Object>("/pet/{petId}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("DeletePet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Finds Pets by status Multiple status values can be provided with comma separated strings
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;Pet&gt;</returns>
+        public List<Pet> FindPetsByStatus(List<string> status, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<Pet>> localVarResponse = FindPetsByStatusWithHttpInfo(status);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Finds Pets by status Multiple status values can be provided with comma separated strings
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;Pet&gt;</returns>
+        public Org.OpenAPITools.Client.ApiResponse<List<Pet>> FindPetsByStatusWithHttpInfo(List<string> status, int operationIndex = 0)
+        {
+            // verify the required parameter 'status' is set
+            if (status == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'status' when calling PetApi->FindPetsByStatus");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "status", status));
+
+            localVarRequestOptions.Operation = "PetApi.FindPetsByStatus";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "GET", "/pet/findByStatus", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<List<Pet>>("/pet/findByStatus", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FindPetsByStatus", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Finds Pets by status Multiple status values can be provided with comma separated strings
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;Pet&gt;</returns>
+        public async System.Threading.Tasks.Task<List<Pet>> FindPetsByStatusAsync(List<string> status, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<Pet>> localVarResponse = await FindPetsByStatusWithHttpInfoAsync(status, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Finds Pets by status Multiple status values can be provided with comma separated strings
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="status">Status values that need to be considered for filter (deprecated)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;Pet&gt;)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<List<Pet>>> FindPetsByStatusWithHttpInfoAsync(List<string> status, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'status' is set
+            if (status == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'status' when calling PetApi->FindPetsByStatus");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "status", status));
+
+            localVarRequestOptions.Operation = "PetApi.FindPetsByStatus";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "GET", "/pet/findByStatus", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<List<Pet>>("/pet/findByStatus", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FindPetsByStatus", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Finds Pets by tags Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>List&lt;Pet&gt;</returns>
+        [Obsolete]
+        public List<Pet> FindPetsByTags(List<string> tags, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<Pet>> localVarResponse = FindPetsByTagsWithHttpInfo(tags);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Finds Pets by tags Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of List&lt;Pet&gt;</returns>
+        [Obsolete]
+        public Org.OpenAPITools.Client.ApiResponse<List<Pet>> FindPetsByTagsWithHttpInfo(List<string> tags, int operationIndex = 0)
+        {
+            // verify the required parameter 'tags' is set
+            if (tags == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'tags' when calling PetApi->FindPetsByTags");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "tags", tags));
+
+            localVarRequestOptions.Operation = "PetApi.FindPetsByTags";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "GET", "/pet/findByTags", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<List<Pet>>("/pet/findByTags", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FindPetsByTags", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Finds Pets by tags Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of List&lt;Pet&gt;</returns>
+        [Obsolete]
+        public async System.Threading.Tasks.Task<List<Pet>> FindPetsByTagsAsync(List<string> tags, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<List<Pet>> localVarResponse = await FindPetsByTagsWithHttpInfoAsync(tags, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Finds Pets by tags Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="tags">Tags to filter by</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (List&lt;Pet&gt;)</returns>
+        [Obsolete]
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<List<Pet>>> FindPetsByTagsWithHttpInfoAsync(List<string> tags, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'tags' is set
+            if (tags == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'tags' when calling PetApi->FindPetsByTags");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("csv", "tags", tags));
+
+            localVarRequestOptions.Operation = "PetApi.FindPetsByTags";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "GET", "/pet/findByTags", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<List<Pet>>("/pet/findByTags", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("FindPetsByTags", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Find pet by ID Returns a single pet
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Pet</returns>
+        public Pet GetPetById(long petId, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<Pet> localVarResponse = GetPetByIdWithHttpInfo(petId);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Find pet by ID Returns a single pet
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Pet</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Pet> GetPetByIdWithHttpInfo(long petId, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+
+            localVarRequestOptions.Operation = "PetApi.GetPetById";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (api_key) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("api_key")))
+            {
+                localVarRequestOptions.HeaderParameters.Add("api_key", this.Configuration.GetApiKeyWithPrefix("api_key"));
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<Pet>("/pet/{petId}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetPetById", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Find pet by ID Returns a single pet
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Pet</returns>
+        public async System.Threading.Tasks.Task<Pet> GetPetByIdAsync(long petId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<Pet> localVarResponse = await GetPetByIdWithHttpInfoAsync(petId, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Find pet by ID Returns a single pet
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to return</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Pet)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Pet>> GetPetByIdWithHttpInfoAsync(long petId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+
+            localVarRequestOptions.Operation = "PetApi.GetPetById";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (api_key) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("api_key")))
+            {
+                localVarRequestOptions.HeaderParameters.Add("api_key", this.Configuration.GetApiKeyWithPrefix("api_key"));
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<Pet>("/pet/{petId}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetPetById", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Update an existing pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void UpdatePet(Pet pet, int operationIndex = 0)
+        {
+            UpdatePetWithHttpInfo(pet);
+        }
+
+        /// <summary>
+        /// Update an existing pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> UpdatePetWithHttpInfo(Pet pet, int operationIndex = 0)
+        {
+            // verify the required parameter 'pet' is set
+            if (pet == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'pet' when calling PetApi->UpdatePet");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json",
+                "application/xml"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = pet;
+
+            localVarRequestOptions.Operation = "PetApi.UpdatePet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "PUT", "/pet", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Put<Object>("/pet", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UpdatePet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Update an existing pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task UpdatePetAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await UpdatePetWithHttpInfoAsync(pet, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Update an existing pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="pet">Pet object that needs to be added to the store</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> UpdatePetWithHttpInfoAsync(Pet pet, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'pet' is set
+            if (pet == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'pet' when calling PetApi->UpdatePet");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json", 
+                "application/xml"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = pet;
+
+            localVarRequestOptions.Operation = "PetApi.UpdatePet";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+            // authentication (http_signature_test) required
+            if (this.Configuration.HttpSigningConfiguration != null)
+            {
+                var HttpSigningHeaders = this.Configuration.HttpSigningConfiguration.GetHttpSignedHeader(this.Configuration.BasePath, "PUT", "/pet", localVarRequestOptions);
+                foreach (var headerItem in HttpSigningHeaders)
+                {
+                    if (localVarRequestOptions.HeaderParameters.ContainsKey(headerItem.Key))
+                    {
+                        localVarRequestOptions.HeaderParameters[headerItem.Key] = new List<string>() { headerItem.Value };
+                    }
+                    else
+                    {
+                        localVarRequestOptions.HeaderParameters.Add(headerItem.Key, headerItem.Value);
+                    }
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PutAsync<Object>("/pet", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UpdatePet", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Updates a pet in the store with form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void UpdatePetWithForm(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0)
+        {
+            UpdatePetWithFormWithHttpInfo(petId, name, status);
+        }
+
+        /// <summary>
+        /// Updates a pet in the store with form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> UpdatePetWithFormWithHttpInfo(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (name != null)
+            {
+                localVarRequestOptions.FormParameters.Add("name", Org.OpenAPITools.Client.ClientUtils.ParameterToString(name)); // form parameter
+            }
+            if (status != null)
+            {
+                localVarRequestOptions.FormParameters.Add("status", Org.OpenAPITools.Client.ClientUtils.ParameterToString(status)); // form parameter
+            }
+
+            localVarRequestOptions.Operation = "PetApi.UpdatePetWithForm";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/pet/{petId}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UpdatePetWithForm", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Updates a pet in the store with form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task UpdatePetWithFormAsync(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await UpdatePetWithFormWithHttpInfoAsync(petId, name, status, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Updates a pet in the store with form data 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet that needs to be updated</param>
+        /// <param name="name">Updated name of the pet (optional)</param>
+        /// <param name="status">Updated status of the pet (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> UpdatePetWithFormWithHttpInfoAsync(long petId, string? name = default(string?), string? status = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/x-www-form-urlencoded"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (name != null)
+            {
+                localVarRequestOptions.FormParameters.Add("name", Org.OpenAPITools.Client.ClientUtils.ParameterToString(name)); // form parameter
+            }
+            if (status != null)
+            {
+                localVarRequestOptions.FormParameters.Add("status", Org.OpenAPITools.Client.ClientUtils.ParameterToString(status)); // form parameter
+            }
+
+            localVarRequestOptions.Operation = "PetApi.UpdatePetWithForm";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/pet/{petId}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UpdatePetWithForm", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// uploads an image 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse</returns>
+        public ApiResponse UploadFile(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<ApiResponse> localVarResponse = UploadFileWithHttpInfo(petId, additionalMetadata, file);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// uploads an image 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ApiResponse</returns>
+        public Org.OpenAPITools.Client.ApiResponse<ApiResponse> UploadFileWithHttpInfo(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "multipart/form-data"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (additionalMetadata != null)
+            {
+                localVarRequestOptions.FormParameters.Add("additionalMetadata", Org.OpenAPITools.Client.ClientUtils.ParameterToString(additionalMetadata)); // form parameter
+            }
+            if (file != null)
+            {
+                localVarRequestOptions.FileParameters.Add("file", file);
+            }
+
+            localVarRequestOptions.Operation = "PetApi.UploadFile";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<ApiResponse>("/pet/{petId}/uploadImage", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UploadFile", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// uploads an image 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<ApiResponse> UploadFileAsync(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<ApiResponse> localVarResponse = await UploadFileWithHttpInfoAsync(petId, additionalMetadata, file, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// uploads an image 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="file">file to upload (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ApiResponse)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<ApiResponse>> UploadFileWithHttpInfoAsync(long petId, string? additionalMetadata = default(string?), System.IO.Stream? file = default(System.IO.Stream?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "multipart/form-data"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (additionalMetadata != null)
+            {
+                localVarRequestOptions.FormParameters.Add("additionalMetadata", Org.OpenAPITools.Client.ClientUtils.ParameterToString(additionalMetadata)); // form parameter
+            }
+            if (file != null)
+            {
+                localVarRequestOptions.FileParameters.Add("file", file);
+            }
+
+            localVarRequestOptions.Operation = "PetApi.UploadFile";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<ApiResponse>("/pet/{petId}/uploadImage", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UploadFile", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// uploads an image (required) 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse</returns>
+        public ApiResponse UploadFileWithRequiredFile(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<ApiResponse> localVarResponse = UploadFileWithRequiredFileWithHttpInfo(petId, requiredFile, additionalMetadata);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// uploads an image (required) 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of ApiResponse</returns>
+        public Org.OpenAPITools.Client.ApiResponse<ApiResponse> UploadFileWithRequiredFileWithHttpInfo(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0)
+        {
+            // verify the required parameter 'requiredFile' is set
+            if (requiredFile == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requiredFile' when calling PetApi->UploadFileWithRequiredFile");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "multipart/form-data"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json",
+                "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (additionalMetadata != null)
+            {
+                localVarRequestOptions.FormParameters.Add("additionalMetadata", Org.OpenAPITools.Client.ClientUtils.ParameterToString(additionalMetadata)); // form parameter
+            }
+            localVarRequestOptions.FileParameters.Add("requiredFile", requiredFile);
+
+            localVarRequestOptions.Operation = "PetApi.UploadFileWithRequiredFile";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<ApiResponse>("/fake/{petId}/uploadImageWithRequiredFile", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UploadFileWithRequiredFile", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// uploads an image (required) 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<ApiResponse> UploadFileWithRequiredFileAsync(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<ApiResponse> localVarResponse = await UploadFileWithRequiredFileWithHttpInfoAsync(petId, requiredFile, additionalMetadata, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// uploads an image (required) 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="petId">ID of pet to update</param>
+        /// <param name="requiredFile">file to upload</param>
+        /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (ApiResponse)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<ApiResponse>> UploadFileWithRequiredFileWithHttpInfoAsync(long petId, System.IO.Stream requiredFile, string? additionalMetadata = default(string?), int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'requiredFile' is set
+            if (requiredFile == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'requiredFile' when calling PetApi->UploadFileWithRequiredFile");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "multipart/form-data"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json",
+                "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("petId", Org.OpenAPITools.Client.ClientUtils.ParameterToString(petId)); // path parameter
+            if (additionalMetadata != null)
+            {
+                localVarRequestOptions.FormParameters.Add("additionalMetadata", Org.OpenAPITools.Client.ClientUtils.ParameterToString(additionalMetadata)); // form parameter
+            }
+            localVarRequestOptions.FileParameters.Add("requiredFile", requiredFile);
+
+            localVarRequestOptions.Operation = "PetApi.UploadFileWithRequiredFile";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (petstore_auth) required
+            // oauth required
+            if (!localVarRequestOptions.HeaderParameters.ContainsKey("Authorization"))
+            {
+                if (!string.IsNullOrEmpty(this.Configuration.AccessToken))
+                {
+                    localVarRequestOptions.HeaderParameters.Add("Authorization", "Bearer " + this.Configuration.AccessToken);
+                }
+                else if (!string.IsNullOrEmpty(this.Configuration.OAuthTokenUrl) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientId) &&
+                         !string.IsNullOrEmpty(this.Configuration.OAuthClientSecret) &&
+                         this.Configuration.OAuthFlow != null)
+                {
+                    localVarRequestOptions.OAuth = true;
+                }
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<ApiResponse>("/fake/{petId}/uploadImageWithRequiredFile", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UploadFileWithRequiredFile", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/StoreApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/StoreApi.cs
new file mode 100644
index 00000000000..e8bed0a150e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/StoreApi.cs
@@ -0,0 +1,903 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Mime;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Client.Auth;
+using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Api
+{
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IStoreApiSync : IApiAccessor
+    {
+        #region Synchronous Operations
+        /// <summary>
+        /// Delete purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void DeleteOrder(string orderId, int operationIndex = 0);
+
+        /// <summary>
+        /// Delete purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> DeleteOrderWithHttpInfo(string orderId, int operationIndex = 0);
+        /// <summary>
+        /// Returns pet inventories by status
+        /// </summary>
+        /// <remarks>
+        /// Returns a map of status codes to quantities
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Dictionary&lt;string, int&gt;</returns>
+        Dictionary<string, int> GetInventory(int operationIndex = 0);
+
+        /// <summary>
+        /// Returns pet inventories by status
+        /// </summary>
+        /// <remarks>
+        /// Returns a map of status codes to quantities
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Dictionary&lt;string, int&gt;</returns>
+        ApiResponse<Dictionary<string, int>> GetInventoryWithHttpInfo(int operationIndex = 0);
+        /// <summary>
+        /// Find purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Order</returns>
+        Order GetOrderById(long orderId, int operationIndex = 0);
+
+        /// <summary>
+        /// Find purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Order</returns>
+        ApiResponse<Order> GetOrderByIdWithHttpInfo(long orderId, int operationIndex = 0);
+        /// <summary>
+        /// Place an order for a pet
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Order</returns>
+        Order PlaceOrder(Order order, int operationIndex = 0);
+
+        /// <summary>
+        /// Place an order for a pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Order</returns>
+        ApiResponse<Order> PlaceOrderWithHttpInfo(Order order, int operationIndex = 0);
+        #endregion Synchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IStoreApiAsync : IApiAccessor
+    {
+        #region Asynchronous Operations
+        /// <summary>
+        /// Delete purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task DeleteOrderAsync(string orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Delete purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> DeleteOrderWithHttpInfoAsync(string orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Returns pet inventories by status
+        /// </summary>
+        /// <remarks>
+        /// Returns a map of status codes to quantities
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Dictionary&lt;string, int&gt;</returns>
+        System.Threading.Tasks.Task<Dictionary<string, int>> GetInventoryAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Returns pet inventories by status
+        /// </summary>
+        /// <remarks>
+        /// Returns a map of status codes to quantities
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Dictionary&lt;string, int&gt;)</returns>
+        System.Threading.Tasks.Task<ApiResponse<Dictionary<string, int>>> GetInventoryWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Find purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Order</returns>
+        System.Threading.Tasks.Task<Order> GetOrderByIdAsync(long orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Find purchase order by ID
+        /// </summary>
+        /// <remarks>
+        /// For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Order)</returns>
+        System.Threading.Tasks.Task<ApiResponse<Order>> GetOrderByIdWithHttpInfoAsync(long orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Place an order for a pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Order</returns>
+        System.Threading.Tasks.Task<Order> PlaceOrderAsync(Order order, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Place an order for a pet
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Order)</returns>
+        System.Threading.Tasks.Task<ApiResponse<Order>> PlaceOrderWithHttpInfoAsync(Order order, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        #endregion Asynchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IStoreApi : IStoreApiSync, IStoreApiAsync
+    {
+
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public partial class StoreApi : IStoreApi
+    {
+        private Org.OpenAPITools.Client.ExceptionFactory _exceptionFactory = (name, response) => null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="StoreApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public StoreApi() : this((string)null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="StoreApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public StoreApi(string basePath)
+        {
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                new Org.OpenAPITools.Client.Configuration { BasePath = basePath }
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="StoreApi"/> class
+        /// using Configuration object
+        /// </summary>
+        /// <param name="configuration">An instance of Configuration</param>
+        /// <returns></returns>
+        public StoreApi(Org.OpenAPITools.Client.Configuration configuration)
+        {
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                configuration
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="StoreApi"/> class
+        /// using a Configuration object and client instance.
+        /// </summary>
+        /// <param name="client">The client interface for synchronous API access.</param>
+        /// <param name="asyncClient">The client interface for asynchronous API access.</param>
+        /// <param name="configuration">The configuration object.</param>
+        public StoreApi(Org.OpenAPITools.Client.ISynchronousClient client, Org.OpenAPITools.Client.IAsynchronousClient asyncClient, Org.OpenAPITools.Client.IReadableConfiguration configuration)
+        {
+            if (client == null) throw new ArgumentNullException("client");
+            if (asyncClient == null) throw new ArgumentNullException("asyncClient");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Client = client;
+            this.AsynchronousClient = asyncClient;
+            this.Configuration = configuration;
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// The client for accessing this underlying API asynchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.IAsynchronousClient AsynchronousClient { get; set; }
+
+        /// <summary>
+        /// The client for accessing this underlying API synchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.ISynchronousClient Client { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        public string GetBasePath()
+        {
+            return this.Configuration.BasePath;
+        }
+
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        public Org.OpenAPITools.Client.IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        public Org.OpenAPITools.Client.ExceptionFactory ExceptionFactory
+        {
+            get
+            {
+                if (_exceptionFactory != null && _exceptionFactory.GetInvocationList().Length > 1)
+                {
+                    throw new InvalidOperationException("Multicast delegate for ExceptionFactory is unsupported.");
+                }
+                return _exceptionFactory;
+            }
+            set { _exceptionFactory = value; }
+        }
+
+        /// <summary>
+        /// Delete purchase order by ID For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void DeleteOrder(string orderId, int operationIndex = 0)
+        {
+            DeleteOrderWithHttpInfo(orderId);
+        }
+
+        /// <summary>
+        /// Delete purchase order by ID For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> DeleteOrderWithHttpInfo(string orderId, int operationIndex = 0)
+        {
+            // verify the required parameter 'orderId' is set
+            if (orderId == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'orderId' when calling StoreApi->DeleteOrder");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("order_id", Org.OpenAPITools.Client.ClientUtils.ParameterToString(orderId)); // path parameter
+
+            localVarRequestOptions.Operation = "StoreApi.DeleteOrder";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Delete<Object>("/store/order/{order_id}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("DeleteOrder", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Delete purchase order by ID For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task DeleteOrderAsync(string orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await DeleteOrderWithHttpInfoAsync(orderId, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Delete purchase order by ID For valid response try integer IDs with value &lt; 1000. Anything above 1000 or nonintegers will generate API errors
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of the order that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> DeleteOrderWithHttpInfoAsync(string orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'orderId' is set
+            if (orderId == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'orderId' when calling StoreApi->DeleteOrder");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("order_id", Org.OpenAPITools.Client.ClientUtils.ParameterToString(orderId)); // path parameter
+
+            localVarRequestOptions.Operation = "StoreApi.DeleteOrder";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.DeleteAsync<Object>("/store/order/{order_id}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("DeleteOrder", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Returns pet inventories by status Returns a map of status codes to quantities
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Dictionary&lt;string, int&gt;</returns>
+        public Dictionary<string, int> GetInventory(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<Dictionary<string, int>> localVarResponse = GetInventoryWithHttpInfo();
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Returns pet inventories by status Returns a map of status codes to quantities
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Dictionary&lt;string, int&gt;</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Dictionary<string, int>> GetInventoryWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "StoreApi.GetInventory";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (api_key) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("api_key")))
+            {
+                localVarRequestOptions.HeaderParameters.Add("api_key", this.Configuration.GetApiKeyWithPrefix("api_key"));
+            }
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<Dictionary<string, int>>("/store/inventory", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetInventory", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Returns pet inventories by status Returns a map of status codes to quantities
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Dictionary&lt;string, int&gt;</returns>
+        public async System.Threading.Tasks.Task<Dictionary<string, int>> GetInventoryAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<Dictionary<string, int>> localVarResponse = await GetInventoryWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Returns pet inventories by status Returns a map of status codes to quantities
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Dictionary&lt;string, int&gt;)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Dictionary<string, int>>> GetInventoryWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "StoreApi.GetInventory";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+            // authentication (api_key) required
+            if (!string.IsNullOrEmpty(this.Configuration.GetApiKeyWithPrefix("api_key")))
+            {
+                localVarRequestOptions.HeaderParameters.Add("api_key", this.Configuration.GetApiKeyWithPrefix("api_key"));
+            }
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<Dictionary<string, int>>("/store/inventory", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetInventory", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Find purchase order by ID For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Order</returns>
+        public Order GetOrderById(long orderId, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<Order> localVarResponse = GetOrderByIdWithHttpInfo(orderId);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Find purchase order by ID For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Order</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Order> GetOrderByIdWithHttpInfo(long orderId, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("order_id", Org.OpenAPITools.Client.ClientUtils.ParameterToString(orderId)); // path parameter
+
+            localVarRequestOptions.Operation = "StoreApi.GetOrderById";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<Order>("/store/order/{order_id}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetOrderById", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Find purchase order by ID For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Order</returns>
+        public async System.Threading.Tasks.Task<Order> GetOrderByIdAsync(long orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<Order> localVarResponse = await GetOrderByIdWithHttpInfoAsync(orderId, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Find purchase order by ID For valid response try integer IDs with value &lt;&#x3D; 5 or &gt; 10. Other values will generate exceptions
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="orderId">ID of pet that needs to be fetched</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Order)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Order>> GetOrderByIdWithHttpInfoAsync(long orderId, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("order_id", Org.OpenAPITools.Client.ClientUtils.ParameterToString(orderId)); // path parameter
+
+            localVarRequestOptions.Operation = "StoreApi.GetOrderById";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<Order>("/store/order/{order_id}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetOrderById", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Place an order for a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>Order</returns>
+        public Order PlaceOrder(Order order, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<Order> localVarResponse = PlaceOrderWithHttpInfo(order);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Place an order for a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Order</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Order> PlaceOrderWithHttpInfo(Order order, int operationIndex = 0)
+        {
+            // verify the required parameter 'order' is set
+            if (order == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'order' when calling StoreApi->PlaceOrder");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = order;
+
+            localVarRequestOptions.Operation = "StoreApi.PlaceOrder";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Order>("/store/order", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("PlaceOrder", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Place an order for a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of Order</returns>
+        public async System.Threading.Tasks.Task<Order> PlaceOrderAsync(Order order, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<Order> localVarResponse = await PlaceOrderWithHttpInfoAsync(order, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Place an order for a pet 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="order">order placed for purchasing the pet</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (Order)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Order>> PlaceOrderWithHttpInfoAsync(Order order, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'order' is set
+            if (order == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'order' when calling StoreApi->PlaceOrder");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = order;
+
+            localVarRequestOptions.Operation = "StoreApi.PlaceOrder";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Order>("/store/order", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("PlaceOrder", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/UserApi.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/UserApi.cs
new file mode 100644
index 00000000000..8efb827cdc0
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Api/UserApi.cs
@@ -0,0 +1,1691 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Mime;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Client.Auth;
+using Org.OpenAPITools.Model;
+
+namespace Org.OpenAPITools.Api
+{
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IUserApiSync : IApiAccessor
+    {
+        #region Synchronous Operations
+        /// <summary>
+        /// Create user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void CreateUser(User user, int operationIndex = 0);
+
+        /// <summary>
+        /// Create user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> CreateUserWithHttpInfo(User user, int operationIndex = 0);
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void CreateUsersWithArrayInput(List<User> user, int operationIndex = 0);
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> CreateUsersWithArrayInputWithHttpInfo(List<User> user, int operationIndex = 0);
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void CreateUsersWithListInput(List<User> user, int operationIndex = 0);
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> CreateUsersWithListInputWithHttpInfo(List<User> user, int operationIndex = 0);
+        /// <summary>
+        /// Delete user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void DeleteUser(string username, int operationIndex = 0);
+
+        /// <summary>
+        /// Delete user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> DeleteUserWithHttpInfo(string username, int operationIndex = 0);
+        /// <summary>
+        /// Get user by user name
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>User</returns>
+        User GetUserByName(string username, int operationIndex = 0);
+
+        /// <summary>
+        /// Get user by user name
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of User</returns>
+        ApiResponse<User> GetUserByNameWithHttpInfo(string username, int operationIndex = 0);
+        /// <summary>
+        /// Logs user into the system
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>string</returns>
+        string LoginUser(string username, string password, int operationIndex = 0);
+
+        /// <summary>
+        /// Logs user into the system
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of string</returns>
+        ApiResponse<string> LoginUserWithHttpInfo(string username, string password, int operationIndex = 0);
+        /// <summary>
+        /// Logs out current logged in user session
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void LogoutUser(int operationIndex = 0);
+
+        /// <summary>
+        /// Logs out current logged in user session
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> LogoutUserWithHttpInfo(int operationIndex = 0);
+        /// <summary>
+        /// Updated user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        void UpdateUser(string username, User user, int operationIndex = 0);
+
+        /// <summary>
+        /// Updated user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        ApiResponse<Object> UpdateUserWithHttpInfo(string username, User user, int operationIndex = 0);
+        #endregion Synchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IUserApiAsync : IApiAccessor
+    {
+        #region Asynchronous Operations
+        /// <summary>
+        /// Create user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task CreateUserAsync(User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Create user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> CreateUserWithHttpInfoAsync(User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task CreateUsersWithArrayInputAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> CreateUsersWithArrayInputWithHttpInfoAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task CreateUsersWithListInputAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Creates list of users with given input array
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> CreateUsersWithListInputWithHttpInfoAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Delete user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task DeleteUserAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Delete user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> DeleteUserWithHttpInfoAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Get user by user name
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of User</returns>
+        System.Threading.Tasks.Task<User> GetUserByNameAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Get user by user name
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (User)</returns>
+        System.Threading.Tasks.Task<ApiResponse<User>> GetUserByNameWithHttpInfoAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Logs user into the system
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of string</returns>
+        System.Threading.Tasks.Task<string> LoginUserAsync(string username, string password, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Logs user into the system
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (string)</returns>
+        System.Threading.Tasks.Task<ApiResponse<string>> LoginUserWithHttpInfoAsync(string username, string password, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Logs out current logged in user session
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task LogoutUserAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Logs out current logged in user session
+        /// </summary>
+        /// <remarks>
+        /// 
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> LogoutUserWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        /// <summary>
+        /// Updated user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        System.Threading.Tasks.Task UpdateUserAsync(string username, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Updated user
+        /// </summary>
+        /// <remarks>
+        /// This can only be done by the logged in user.
+        /// </remarks>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        System.Threading.Tasks.Task<ApiResponse<Object>> UpdateUserWithHttpInfoAsync(string username, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+        #endregion Asynchronous Operations
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public interface IUserApi : IUserApiSync, IUserApiAsync
+    {
+
+    }
+
+    /// <summary>
+    /// Represents a collection of functions to interact with the API endpoints
+    /// </summary>
+    public partial class UserApi : IUserApi
+    {
+        private Org.OpenAPITools.Client.ExceptionFactory _exceptionFactory = (name, response) => null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public UserApi() : this((string)null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserApi"/> class.
+        /// </summary>
+        /// <returns></returns>
+        public UserApi(string basePath)
+        {
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                new Org.OpenAPITools.Client.Configuration { BasePath = basePath }
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserApi"/> class
+        /// using Configuration object
+        /// </summary>
+        /// <param name="configuration">An instance of Configuration</param>
+        /// <returns></returns>
+        public UserApi(Org.OpenAPITools.Client.Configuration configuration)
+        {
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Configuration = Org.OpenAPITools.Client.Configuration.MergeConfigurations(
+                Org.OpenAPITools.Client.GlobalConfiguration.Instance,
+                configuration
+            );
+            this.Client = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            this.AsynchronousClient = new Org.OpenAPITools.Client.ApiClient(this.Configuration.BasePath);
+            ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserApi"/> class
+        /// using a Configuration object and client instance.
+        /// </summary>
+        /// <param name="client">The client interface for synchronous API access.</param>
+        /// <param name="asyncClient">The client interface for asynchronous API access.</param>
+        /// <param name="configuration">The configuration object.</param>
+        public UserApi(Org.OpenAPITools.Client.ISynchronousClient client, Org.OpenAPITools.Client.IAsynchronousClient asyncClient, Org.OpenAPITools.Client.IReadableConfiguration configuration)
+        {
+            if (client == null) throw new ArgumentNullException("client");
+            if (asyncClient == null) throw new ArgumentNullException("asyncClient");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            this.Client = client;
+            this.AsynchronousClient = asyncClient;
+            this.Configuration = configuration;
+            this.ExceptionFactory = Org.OpenAPITools.Client.Configuration.DefaultExceptionFactory;
+        }
+
+        /// <summary>
+        /// The client for accessing this underlying API asynchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.IAsynchronousClient AsynchronousClient { get; set; }
+
+        /// <summary>
+        /// The client for accessing this underlying API synchronously.
+        /// </summary>
+        public Org.OpenAPITools.Client.ISynchronousClient Client { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        public string GetBasePath()
+        {
+            return this.Configuration.BasePath;
+        }
+
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        public Org.OpenAPITools.Client.IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        public Org.OpenAPITools.Client.ExceptionFactory ExceptionFactory
+        {
+            get
+            {
+                if (_exceptionFactory != null && _exceptionFactory.GetInvocationList().Length > 1)
+                {
+                    throw new InvalidOperationException("Multicast delegate for ExceptionFactory is unsupported.");
+                }
+                return _exceptionFactory;
+            }
+            set { _exceptionFactory = value; }
+        }
+
+        /// <summary>
+        /// Create user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void CreateUser(User user, int operationIndex = 0)
+        {
+            CreateUserWithHttpInfo(user);
+        }
+
+        /// <summary>
+        /// Create user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> CreateUserWithHttpInfo(User user, int operationIndex = 0)
+        {
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->CreateUser");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.CreateUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/user", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("CreateUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Create user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task CreateUserAsync(User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await CreateUserWithHttpInfoAsync(user, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Create user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">Created user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> CreateUserWithHttpInfoAsync(User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->CreateUser");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.CreateUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/user", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("CreateUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void CreateUsersWithArrayInput(List<User> user, int operationIndex = 0)
+        {
+            CreateUsersWithArrayInputWithHttpInfo(user);
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> CreateUsersWithArrayInputWithHttpInfo(List<User> user, int operationIndex = 0)
+        {
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->CreateUsersWithArrayInput");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.CreateUsersWithArrayInput";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/user/createWithArray", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("CreateUsersWithArrayInput", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task CreateUsersWithArrayInputAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await CreateUsersWithArrayInputWithHttpInfoAsync(user, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> CreateUsersWithArrayInputWithHttpInfoAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->CreateUsersWithArrayInput");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.CreateUsersWithArrayInput";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/user/createWithArray", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("CreateUsersWithArrayInput", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void CreateUsersWithListInput(List<User> user, int operationIndex = 0)
+        {
+            CreateUsersWithListInputWithHttpInfo(user);
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> CreateUsersWithListInputWithHttpInfo(List<User> user, int operationIndex = 0)
+        {
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->CreateUsersWithListInput");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.CreateUsersWithListInput";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Post<Object>("/user/createWithList", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("CreateUsersWithListInput", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task CreateUsersWithListInputAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await CreateUsersWithListInputWithHttpInfoAsync(user, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Creates list of users with given input array 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="user">List of user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> CreateUsersWithListInputWithHttpInfoAsync(List<User> user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->CreateUsersWithListInput");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.CreateUsersWithListInput";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PostAsync<Object>("/user/createWithList", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("CreateUsersWithListInput", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Delete user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void DeleteUser(string username, int operationIndex = 0)
+        {
+            DeleteUserWithHttpInfo(username);
+        }
+
+        /// <summary>
+        /// Delete user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> DeleteUserWithHttpInfo(string username, int operationIndex = 0)
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->DeleteUser");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("username", Org.OpenAPITools.Client.ClientUtils.ParameterToString(username)); // path parameter
+
+            localVarRequestOptions.Operation = "UserApi.DeleteUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Delete<Object>("/user/{username}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("DeleteUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Delete user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task DeleteUserAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await DeleteUserWithHttpInfoAsync(username, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Delete user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be deleted</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> DeleteUserWithHttpInfoAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->DeleteUser");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("username", Org.OpenAPITools.Client.ClientUtils.ParameterToString(username)); // path parameter
+
+            localVarRequestOptions.Operation = "UserApi.DeleteUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.DeleteAsync<Object>("/user/{username}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("DeleteUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Get user by user name 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>User</returns>
+        public User GetUserByName(string username, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<User> localVarResponse = GetUserByNameWithHttpInfo(username);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Get user by user name 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of User</returns>
+        public Org.OpenAPITools.Client.ApiResponse<User> GetUserByNameWithHttpInfo(string username, int operationIndex = 0)
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->GetUserByName");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("username", Org.OpenAPITools.Client.ClientUtils.ParameterToString(username)); // path parameter
+
+            localVarRequestOptions.Operation = "UserApi.GetUserByName";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<User>("/user/{username}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetUserByName", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Get user by user name 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of User</returns>
+        public async System.Threading.Tasks.Task<User> GetUserByNameAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<User> localVarResponse = await GetUserByNameWithHttpInfoAsync(username, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Get user by user name 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (User)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<User>> GetUserByNameWithHttpInfoAsync(string username, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->GetUserByName");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("username", Org.OpenAPITools.Client.ClientUtils.ParameterToString(username)); // path parameter
+
+            localVarRequestOptions.Operation = "UserApi.GetUserByName";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<User>("/user/{username}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("GetUserByName", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Logs user into the system 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>string</returns>
+        public string LoginUser(string username, string password, int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.ApiResponse<string> localVarResponse = LoginUserWithHttpInfo(username, password);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Logs user into the system 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of string</returns>
+        public Org.OpenAPITools.Client.ApiResponse<string> LoginUserWithHttpInfo(string username, string password, int operationIndex = 0)
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->LoginUser");
+            }
+
+            // verify the required parameter 'password' is set
+            if (password == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'password' when calling UserApi->LoginUser");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "username", username));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "password", password));
+
+            localVarRequestOptions.Operation = "UserApi.LoginUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<string>("/user/login", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("LoginUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Logs user into the system 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of string</returns>
+        public async System.Threading.Tasks.Task<string> LoginUserAsync(string username, string password, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            Org.OpenAPITools.Client.ApiResponse<string> localVarResponse = await LoginUserWithHttpInfoAsync(username, password, operationIndex, cancellationToken).ConfigureAwait(false);
+            return localVarResponse.Data;
+        }
+
+        /// <summary>
+        /// Logs user into the system 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">The user name for login</param>
+        /// <param name="password">The password for login in clear text</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse (string)</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<string>> LoginUserWithHttpInfoAsync(string username, string password, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->LoginUser");
+            }
+
+            // verify the required parameter 'password' is set
+            if (password == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'password' when calling UserApi->LoginUser");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+                "application/xml",
+                "application/json"
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "username", username));
+            localVarRequestOptions.QueryParameters.Add(Org.OpenAPITools.Client.ClientUtils.ParameterToMultiMap("", "password", password));
+
+            localVarRequestOptions.Operation = "UserApi.LoginUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<string>("/user/login", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("LoginUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Logs out current logged in user session 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void LogoutUser(int operationIndex = 0)
+        {
+            LogoutUserWithHttpInfo();
+        }
+
+        /// <summary>
+        /// Logs out current logged in user session 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> LogoutUserWithHttpInfo(int operationIndex = 0)
+        {
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "UserApi.LogoutUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Get<Object>("/user/logout", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("LogoutUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Logs out current logged in user session 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task LogoutUserAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await LogoutUserWithHttpInfoAsync(operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Logs out current logged in user session 
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> LogoutUserWithHttpInfoAsync(int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+
+            localVarRequestOptions.Operation = "UserApi.LogoutUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.GetAsync<Object>("/user/logout", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("LogoutUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Updated user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns></returns>
+        public void UpdateUser(string username, User user, int operationIndex = 0)
+        {
+            UpdateUserWithHttpInfo(username, user);
+        }
+
+        /// <summary>
+        /// Updated user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        public Org.OpenAPITools.Client.ApiResponse<Object> UpdateUserWithHttpInfo(string username, User user, int operationIndex = 0)
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->UpdateUser");
+            }
+
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->UpdateUser");
+            }
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("username", Org.OpenAPITools.Client.ClientUtils.ParameterToString(username)); // path parameter
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.UpdateUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = this.Client.Put<Object>("/user/{username}", localVarRequestOptions, this.Configuration);
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UpdateUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+        /// <summary>
+        /// Updated user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of void</returns>
+        public async System.Threading.Tasks.Task UpdateUserAsync(string username, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            await UpdateUserWithHttpInfoAsync(username, user, operationIndex, cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// Updated user This can only be done by the logged in user.
+        /// </summary>
+        /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
+        /// <param name="username">name that need to be deleted</param>
+        /// <param name="user">Updated user object</param>
+        /// <param name="operationIndex">Index associated with the operation.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <returns>Task of ApiResponse</returns>
+        public async System.Threading.Tasks.Task<Org.OpenAPITools.Client.ApiResponse<Object>> UpdateUserWithHttpInfoAsync(string username, User user, int operationIndex = 0, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            // verify the required parameter 'username' is set
+            if (username == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'username' when calling UserApi->UpdateUser");
+            }
+
+            // verify the required parameter 'user' is set
+            if (user == null)
+            {
+                throw new Org.OpenAPITools.Client.ApiException(400, "Missing required parameter 'user' when calling UserApi->UpdateUser");
+            }
+
+
+            Org.OpenAPITools.Client.RequestOptions localVarRequestOptions = new Org.OpenAPITools.Client.RequestOptions();
+
+            string[] _contentTypes = new string[] {
+                "application/json"
+            };
+
+            // to determine the Accept header
+            string[] _accepts = new string[] {
+            };
+
+            var localVarContentType = Org.OpenAPITools.Client.ClientUtils.SelectHeaderContentType(_contentTypes);
+            if (localVarContentType != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Content-Type", localVarContentType);
+            }
+
+            var localVarAccept = Org.OpenAPITools.Client.ClientUtils.SelectHeaderAccept(_accepts);
+            if (localVarAccept != null)
+            {
+                localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
+            }
+
+            localVarRequestOptions.PathParameters.Add("username", Org.OpenAPITools.Client.ClientUtils.ParameterToString(username)); // path parameter
+            localVarRequestOptions.Data = user;
+
+            localVarRequestOptions.Operation = "UserApi.UpdateUser";
+            localVarRequestOptions.OperationIndex = operationIndex;
+
+
+            // make the HTTP request
+            var localVarResponse = await this.AsynchronousClient.PutAsync<Object>("/user/{username}", localVarRequestOptions, this.Configuration, cancellationToken).ConfigureAwait(false);
+
+            if (this.ExceptionFactory != null)
+            {
+                Exception _exception = this.ExceptionFactory("UpdateUser", localVarResponse);
+                if (_exception != null)
+                {
+                    throw _exception;
+                }
+            }
+
+            return localVarResponse;
+        }
+
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiClient.cs
new file mode 100644
index 00000000000..b10e49166a6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -0,0 +1,862 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Reflection;
+using System.Runtime.Serialization;
+using System.Runtime.Serialization.Formatters;
+using System.Text;
+using System.Threading;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using System.Web;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using RestSharp;
+using RestSharp.Serializers;
+using RestSharpMethod = RestSharp.Method;
+using Polly;
+using Org.OpenAPITools.Client.Auth;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Allows RestSharp to Serialize/Deserialize JSON using our custom logic, but only when ContentType is JSON.
+    /// </summary>
+    internal class CustomJsonCodec : IRestSerializer, ISerializer, IDeserializer
+    {
+        private readonly IReadableConfiguration _configuration;
+        private readonly JsonSerializerSettings _serializerSettings = new JsonSerializerSettings
+        {
+            // OpenAPI generated types generally hide default constructors.
+            ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor,
+            ContractResolver = new DefaultContractResolver
+            {
+                NamingStrategy = new CamelCaseNamingStrategy
+                {
+                    OverrideSpecifiedNames = false
+                }
+            }
+        };
+
+        public CustomJsonCodec(IReadableConfiguration configuration)
+        {
+            _configuration = configuration;
+        }
+
+        public CustomJsonCodec(JsonSerializerSettings serializerSettings, IReadableConfiguration configuration)
+        {
+            _serializerSettings = serializerSettings;
+            _configuration = configuration;
+        }
+
+        /// <summary>
+        /// Serialize the object into a JSON string.
+        /// </summary>
+        /// <param name="obj">Object to be serialized.</param>
+        /// <returns>A JSON string.</returns>
+        public string Serialize(object obj)
+        {
+            if (obj != null && obj is Org.OpenAPITools.Model.AbstractOpenAPISchema)
+            {
+                // the object to be serialized is an oneOf/anyOf schema
+                return ((Org.OpenAPITools.Model.AbstractOpenAPISchema)obj).ToJson();
+            }
+            else
+            {
+                return JsonConvert.SerializeObject(obj, _serializerSettings);
+            }
+        }
+
+        public string Serialize(Parameter bodyParameter) => Serialize(bodyParameter.Value);
+
+        public T Deserialize<T>(RestResponse response)
+        {
+            var result = (T)Deserialize(response, typeof(T));
+            return result;
+        }
+
+        /// <summary>
+        /// Deserialize the JSON string into a proper object.
+        /// </summary>
+        /// <param name="response">The HTTP response.</param>
+        /// <param name="type">Object type.</param>
+        /// <returns>Object representation of the JSON string.</returns>
+        internal object Deserialize(RestResponse response, Type type)
+        {
+            if (type == typeof(byte[])) // return byte array
+            {
+                return response.RawBytes;
+            }
+
+            // TODO: ? if (type.IsAssignableFrom(typeof(Stream)))
+            if (type == typeof(Stream))
+            {
+                var bytes = response.RawBytes;
+                if (response.Headers != null)
+                {
+                    var filePath = string.IsNullOrEmpty(_configuration.TempFolderPath)
+                        ? Path.GetTempPath()
+                        : _configuration.TempFolderPath;
+                    var regex = new Regex(@"Content-Disposition=.*filename=['""]?([^'""\s]+)['""]?$");
+                    foreach (var header in response.Headers)
+                    {
+                        var match = regex.Match(header.ToString());
+                        if (match.Success)
+                        {
+                            string fileName = filePath + ClientUtils.SanitizeFilename(match.Groups[1].Value.Replace("\"", "").Replace("'", ""));
+                            File.WriteAllBytes(fileName, bytes);
+                            return new FileStream(fileName, FileMode.Open);
+                        }
+                    }
+                }
+                var stream = new MemoryStream(bytes);
+                return stream;
+            }
+
+            if (type.Name.StartsWith("System.Nullable`1[[System.DateTime")) // return a datetime object
+            {
+                return DateTime.Parse(response.Content, null, System.Globalization.DateTimeStyles.RoundtripKind);
+            }
+
+            if (type == typeof(string) || type.Name.StartsWith("System.Nullable")) // return primitive type
+            {
+                return Convert.ChangeType(response.Content, type);
+            }
+
+            // at this point, it must be a model (json)
+            try
+            {
+                return JsonConvert.DeserializeObject(response.Content, type, _serializerSettings);
+            }
+            catch (Exception e)
+            {
+                throw new ApiException(500, e.Message);
+            }
+        }
+
+        public ISerializer Serializer => this;
+        public IDeserializer Deserializer => this;
+
+        public string[] AcceptedContentTypes => RestSharp.ContentType.JsonAccept;
+
+        public SupportsContentType SupportsContentType => contentType =>
+            contentType.Value.EndsWith("json", StringComparison.InvariantCultureIgnoreCase) ||
+            contentType.Value.EndsWith("javascript", StringComparison.InvariantCultureIgnoreCase);
+
+        public ContentType ContentType { get; set; } = RestSharp.ContentType.Json;
+
+        public DataFormat DataFormat => DataFormat.Json;
+    }
+    /// <summary>
+    /// Provides a default implementation of an Api client (both synchronous and asynchronous implementations),
+    /// encapsulating general REST accessor use cases.
+    /// </summary>
+    public partial class ApiClient : ISynchronousClient, IAsynchronousClient
+    {
+        private readonly string _baseUrl;
+
+        /// <summary>
+        /// Specifies the settings on a <see cref="JsonSerializer" /> object.
+        /// These settings can be adjusted to accommodate custom serialization rules.
+        /// </summary>
+        public JsonSerializerSettings SerializerSettings { get; set; } = new JsonSerializerSettings
+        {
+            // OpenAPI generated types generally hide default constructors.
+            ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor,
+            ContractResolver = new DefaultContractResolver
+            {
+                NamingStrategy = new CamelCaseNamingStrategy
+                {
+                    OverrideSpecifiedNames = false
+                }
+            }
+        };
+
+        /// <summary>
+        /// Allows for extending request processing for <see cref="ApiClient"/> generated code.
+        /// </summary>
+        /// <param name="request">The RestSharp request object</param>
+        partial void InterceptRequest(RestRequest request);
+
+        /// <summary>
+        /// Allows for extending response processing for <see cref="ApiClient"/> generated code.
+        /// </summary>
+        /// <param name="request">The RestSharp request object</param>
+        /// <param name="response">The RestSharp response object</param>
+        partial void InterceptResponse(RestRequest request, RestResponse response);
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiClient" />, defaulting to the global configurations' base url.
+        /// </summary>
+        public ApiClient()
+        {
+            _baseUrl = Org.OpenAPITools.Client.GlobalConfiguration.Instance.BasePath;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiClient" />
+        /// </summary>
+        /// <param name="basePath">The target service's base path in URL format.</param>
+        /// <exception cref="ArgumentException"></exception>
+        public ApiClient(string basePath)
+        {
+            if (string.IsNullOrEmpty(basePath))
+                throw new ArgumentException("basePath cannot be empty");
+
+            _baseUrl = basePath;
+        }
+
+        /// <summary>
+        /// Constructs the RestSharp version of an http method
+        /// </summary>
+        /// <param name="method">Swagger Client Custom HttpMethod</param>
+        /// <returns>RestSharp's HttpMethod instance.</returns>
+        /// <exception cref="ArgumentOutOfRangeException"></exception>
+        private RestSharpMethod Method(HttpMethod method)
+        {
+            RestSharpMethod other;
+            switch (method)
+            {
+                case HttpMethod.Get:
+                    other = RestSharpMethod.Get;
+                    break;
+                case HttpMethod.Post:
+                    other = RestSharpMethod.Post;
+                    break;
+                case HttpMethod.Put:
+                    other = RestSharpMethod.Put;
+                    break;
+                case HttpMethod.Delete:
+                    other = RestSharpMethod.Delete;
+                    break;
+                case HttpMethod.Head:
+                    other = RestSharpMethod.Head;
+                    break;
+                case HttpMethod.Options:
+                    other = RestSharpMethod.Options;
+                    break;
+                case HttpMethod.Patch:
+                    other = RestSharpMethod.Patch;
+                    break;
+                default:
+                    throw new ArgumentOutOfRangeException("method", method, null);
+            }
+
+            return other;
+        }
+
+        /// <summary>
+        /// Provides all logic for constructing a new RestSharp <see cref="RestRequest"/>.
+        /// At this point, all information for querying the service is known. Here, it is simply
+        /// mapped into the RestSharp request.
+        /// </summary>
+        /// <param name="method">The http verb.</param>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>[private] A new RestRequest instance.</returns>
+        /// <exception cref="ArgumentNullException"></exception>
+        private RestRequest NewRequest(
+            HttpMethod method,
+            string path,
+            RequestOptions options,
+            IReadableConfiguration configuration)
+        {
+            if (path == null) throw new ArgumentNullException("path");
+            if (options == null) throw new ArgumentNullException("options");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            RestRequest request = new RestRequest(path, Method(method));
+
+            if (options.PathParameters != null)
+            {
+                foreach (var pathParam in options.PathParameters)
+                {
+                    request.AddParameter(pathParam.Key, pathParam.Value, ParameterType.UrlSegment);
+                }
+            }
+
+            if (options.QueryParameters != null)
+            {
+                foreach (var queryParam in options.QueryParameters)
+                {
+                    foreach (var value in queryParam.Value)
+                    {
+                        request.AddQueryParameter(queryParam.Key, value);
+                    }
+                }
+            }
+
+            if (configuration.DefaultHeaders != null)
+            {
+                foreach (var headerParam in configuration.DefaultHeaders)
+                {
+                    request.AddHeader(headerParam.Key, headerParam.Value);
+                }
+            }
+
+            if (options.HeaderParameters != null)
+            {
+                foreach (var headerParam in options.HeaderParameters)
+                {
+                    foreach (var value in headerParam.Value)
+                    {
+                        request.AddHeader(headerParam.Key, value);
+                    }
+                }
+            }
+
+            if (options.FormParameters != null)
+            {
+                foreach (var formParam in options.FormParameters)
+                {
+                    request.AddParameter(formParam.Key, formParam.Value);
+                }
+            }
+
+            if (options.Data != null)
+            {
+                if (options.Data is Stream stream)
+                {
+                    var contentType = "application/octet-stream";
+                    if (options.HeaderParameters != null)
+                    {
+                        var contentTypes = options.HeaderParameters["Content-Type"];
+                        contentType = contentTypes[0];
+                    }
+
+                    var bytes = ClientUtils.ReadAsBytes(stream);
+                    request.AddParameter(contentType, bytes, ParameterType.RequestBody);
+                }
+                else
+                {
+                    if (options.HeaderParameters != null)
+                    {
+                        var contentTypes = options.HeaderParameters["Content-Type"];
+                        if (contentTypes == null || contentTypes.Any(header => header.Contains("application/json")))
+                        {
+                            request.RequestFormat = DataFormat.Json;
+                        }
+                        else
+                        {
+                            // TODO: Generated client user should add additional handlers. RestSharp only supports XML and JSON, with XML as default.
+                        }
+                    }
+                    else
+                    {
+                        // Here, we'll assume JSON APIs are more common. XML can be forced by adding produces/consumes to openapi spec explicitly.
+                        request.RequestFormat = DataFormat.Json;
+                    }
+
+                    request.AddJsonBody(options.Data);
+                }
+            }
+
+            if (options.FileParameters != null)
+            {
+                foreach (var fileParam in options.FileParameters)
+                {
+                    foreach (var file in fileParam.Value)
+                    {
+                        var bytes = ClientUtils.ReadAsBytes(file);
+                        var fileStream = file as FileStream;
+                        if (fileStream != null)
+                            request.AddFile(fileParam.Key, bytes, System.IO.Path.GetFileName(fileStream.Name));
+                        else
+                            request.AddFile(fileParam.Key, bytes, "no_file_name_provided");
+                    }
+                }
+            }
+
+            return request;
+        }
+
+        private ApiResponse<T> ToApiResponse<T>(RestResponse<T> response)
+        {
+            T result = response.Data;
+            string rawContent = response.Content;
+
+            var transformed = new ApiResponse<T>(response.StatusCode, new Multimap<string, string>(), result, rawContent)
+            {
+                ErrorText = response.ErrorMessage,
+                Cookies = new List<Cookie>()
+            };
+
+            if (response.Headers != null)
+            {
+                foreach (var responseHeader in response.Headers)
+                {
+                    transformed.Headers.Add(responseHeader.Name, ClientUtils.ParameterToString(responseHeader.Value));
+                }
+            }
+
+            if (response.ContentHeaders != null)
+            {
+                foreach (var responseHeader in response.ContentHeaders)
+                {
+                    transformed.Headers.Add(responseHeader.Name, ClientUtils.ParameterToString(responseHeader.Value));
+                }
+            }
+
+            if (response.Cookies != null)
+            {
+                foreach (var responseCookies in response.Cookies.Cast<Cookie>())
+                {
+                    transformed.Cookies.Add(
+                        new Cookie(
+                            responseCookies.Name,
+                            responseCookies.Value,
+                            responseCookies.Path,
+                            responseCookies.Domain)
+                        );
+                }
+            }
+
+            return transformed;
+        }
+
+        private ApiResponse<T> Exec<T>(RestRequest request, RequestOptions options, IReadableConfiguration configuration)
+        {
+            var baseUrl = configuration.GetOperationServerUrl(options.Operation, options.OperationIndex) ?? _baseUrl;
+
+            var cookies = new CookieContainer();
+
+            if (options.Cookies != null && options.Cookies.Count > 0)
+            {
+                foreach (var cookie in options.Cookies)
+                {
+                    cookies.Add(new Cookie(cookie.Name, cookie.Value));
+                }
+            }
+
+            var clientOptions = new RestClientOptions(baseUrl)
+            {
+                ClientCertificates = configuration.ClientCertificates,
+                CookieContainer = cookies,
+                MaxTimeout = configuration.Timeout,
+                Proxy = configuration.Proxy,
+                UserAgent = configuration.UserAgent,
+                UseDefaultCredentials = configuration.UseDefaultCredentials,
+                RemoteCertificateValidationCallback = configuration.RemoteCertificateValidationCallback
+            };
+
+            if (!string.IsNullOrEmpty(configuration.OAuthTokenUrl) &&
+                !string.IsNullOrEmpty(configuration.OAuthClientId) &&
+                !string.IsNullOrEmpty(configuration.OAuthClientSecret) &&
+                configuration.OAuthFlow != null)
+            {
+                clientOptions.Authenticator = new OAuthAuthenticator(
+                    configuration.OAuthTokenUrl,
+                    configuration.OAuthClientId,
+                    configuration.OAuthClientSecret,
+                    configuration.OAuthFlow,
+                    SerializerSettings,
+                    configuration);
+            }
+
+            using (RestClient client = new RestClient(clientOptions,
+                configureSerialization: serializerConfig => serializerConfig.UseSerializer(() => new CustomJsonCodec(SerializerSettings, configuration))))
+            {
+                InterceptRequest(request);
+
+                RestResponse<T> response;
+                if (RetryConfiguration.RetryPolicy != null)
+                {
+                    var policy = RetryConfiguration.RetryPolicy;
+                    var policyResult = policy.ExecuteAndCapture(() => client.Execute(request));
+                    response = (policyResult.Outcome == OutcomeType.Successful) ? client.Deserialize<T>(policyResult.Result) : new RestResponse<T>(request)
+                    {
+                        ErrorException = policyResult.FinalException
+                    };
+                }
+                else
+                {
+                    response = client.Execute<T>(request);
+                }
+
+                // if the response type is oneOf/anyOf, call FromJSON to deserialize the data
+                if (typeof(Org.OpenAPITools.Model.AbstractOpenAPISchema).IsAssignableFrom(typeof(T)))
+                {
+                    try
+                    {
+                        response.Data = (T) typeof(T).GetMethod("FromJson").Invoke(null, new object[] { response.Content });
+                    }
+                    catch (Exception ex)
+                    {
+                        throw ex.InnerException != null ? ex.InnerException : ex;
+                    }
+                }
+                else if (typeof(T).Name == "Stream") // for binary response
+                {
+                    response.Data = (T)(object)new MemoryStream(response.RawBytes);
+                }
+                else if (typeof(T).Name == "Byte[]") // for byte response
+                {
+                    response.Data = (T)(object)response.RawBytes;
+                }
+                else if (typeof(T).Name == "String") // for string response
+                {
+                    response.Data = (T)(object)response.Content;
+                }
+
+                InterceptResponse(request, response);
+
+                var result = ToApiResponse(response);
+                if (response.ErrorMessage != null)
+                {
+                    result.ErrorText = response.ErrorMessage;
+                }
+
+                if (response.Cookies != null && response.Cookies.Count > 0)
+                {
+                    if (result.Cookies == null) result.Cookies = new List<Cookie>();
+                    foreach (var restResponseCookie in response.Cookies.Cast<Cookie>())
+                    {
+                        var cookie = new Cookie(
+                            restResponseCookie.Name,
+                            restResponseCookie.Value,
+                            restResponseCookie.Path,
+                            restResponseCookie.Domain
+                        )
+                        {
+                            Comment = restResponseCookie.Comment,
+                            CommentUri = restResponseCookie.CommentUri,
+                            Discard = restResponseCookie.Discard,
+                            Expired = restResponseCookie.Expired,
+                            Expires = restResponseCookie.Expires,
+                            HttpOnly = restResponseCookie.HttpOnly,
+                            Port = restResponseCookie.Port,
+                            Secure = restResponseCookie.Secure,
+                            Version = restResponseCookie.Version
+                        };
+
+                        result.Cookies.Add(cookie);
+                    }
+                }
+                return result;
+            }
+        }
+
+        private async Task<ApiResponse<T>> ExecAsync<T>(RestRequest request, RequestOptions options, IReadableConfiguration configuration, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var baseUrl = configuration.GetOperationServerUrl(options.Operation, options.OperationIndex) ?? _baseUrl;
+
+            var clientOptions = new RestClientOptions(baseUrl)
+            {
+                ClientCertificates = configuration.ClientCertificates,
+                MaxTimeout = configuration.Timeout,
+                Proxy = configuration.Proxy,
+                UserAgent = configuration.UserAgent,
+                UseDefaultCredentials = configuration.UseDefaultCredentials,
+                RemoteCertificateValidationCallback = configuration.RemoteCertificateValidationCallback
+            };
+
+            if (!string.IsNullOrEmpty(configuration.OAuthTokenUrl) &&
+                !string.IsNullOrEmpty(configuration.OAuthClientId) &&
+                !string.IsNullOrEmpty(configuration.OAuthClientSecret) &&
+                configuration.OAuthFlow != null)
+            {
+                clientOptions.Authenticator = new OAuthAuthenticator(
+                    configuration.OAuthTokenUrl,
+                    configuration.OAuthClientId,
+                    configuration.OAuthClientSecret,
+                    configuration.OAuthFlow,
+                    SerializerSettings,
+                    configuration);
+            }
+
+            using (RestClient client = new RestClient(clientOptions,
+                configureSerialization: serializerConfig => serializerConfig.UseSerializer(() => new CustomJsonCodec(SerializerSettings, configuration))))
+            {
+                InterceptRequest(request);
+
+                RestResponse<T> response;
+                if (RetryConfiguration.AsyncRetryPolicy != null)
+                {
+                    var policy = RetryConfiguration.AsyncRetryPolicy;
+                    var policyResult = await policy.ExecuteAndCaptureAsync((ct) => client.ExecuteAsync(request, ct), cancellationToken).ConfigureAwait(false);
+                    response = (policyResult.Outcome == OutcomeType.Successful) ? client.Deserialize<T>(policyResult.Result) : new RestResponse<T>(request)
+                    {
+                        ErrorException = policyResult.FinalException
+                    };
+                }
+                else
+                {
+                    response = await client.ExecuteAsync<T>(request, cancellationToken).ConfigureAwait(false);
+                }
+
+                // if the response type is oneOf/anyOf, call FromJSON to deserialize the data
+                if (typeof(Org.OpenAPITools.Model.AbstractOpenAPISchema).IsAssignableFrom(typeof(T)))
+                {
+                    response.Data = (T) typeof(T).GetMethod("FromJson").Invoke(null, new object[] { response.Content });
+                }
+                else if (typeof(T).Name == "Stream") // for binary response
+                {
+                    response.Data = (T)(object)new MemoryStream(response.RawBytes);
+                }
+                else if (typeof(T).Name == "Byte[]") // for byte response
+                {
+                    response.Data = (T)(object)response.RawBytes;
+                }
+
+                InterceptResponse(request, response);
+
+                var result = ToApiResponse(response);
+                if (response.ErrorMessage != null)
+                {
+                    result.ErrorText = response.ErrorMessage;
+                }
+
+                if (response.Cookies != null && response.Cookies.Count > 0)
+                {
+                    if (result.Cookies == null) result.Cookies = new List<Cookie>();
+                    foreach (var restResponseCookie in response.Cookies.Cast<Cookie>())
+                    {
+                        var cookie = new Cookie(
+                            restResponseCookie.Name,
+                            restResponseCookie.Value,
+                            restResponseCookie.Path,
+                            restResponseCookie.Domain
+                        )
+                        {
+                            Comment = restResponseCookie.Comment,
+                            CommentUri = restResponseCookie.CommentUri,
+                            Discard = restResponseCookie.Discard,
+                            Expired = restResponseCookie.Expired,
+                            Expires = restResponseCookie.Expires,
+                            HttpOnly = restResponseCookie.HttpOnly,
+                            Port = restResponseCookie.Port,
+                            Secure = restResponseCookie.Secure,
+                            Version = restResponseCookie.Version
+                        };
+
+                        result.Cookies.Add(cookie);
+                    }
+                }
+                return result;
+            }
+        }
+
+        #region IAsynchronousClient
+        /// <summary>
+        /// Make a HTTP GET request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> GetAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Get, path, options, config), options, config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP POST request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> PostAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Post, path, options, config), options, config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP PUT request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> PutAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Put, path, options, config), options, config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP DELETE request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> DeleteAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Delete, path, options, config), options, config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP HEAD request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> HeadAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Head, path, options, config), options, config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP OPTION request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> OptionsAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Options, path, options, config), options, config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP PATCH request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> PatchAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Patch, path, options, config), options, config, cancellationToken);
+        }
+        #endregion IAsynchronousClient
+
+        #region ISynchronousClient
+        /// <summary>
+        /// Make a HTTP GET request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Get<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Get, path, options, config), options, config);
+        }
+
+        /// <summary>
+        /// Make a HTTP POST request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Post<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Post, path, options, config), options, config);
+        }
+
+        /// <summary>
+        /// Make a HTTP PUT request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Put<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Put, path, options, config), options, config);
+        }
+
+        /// <summary>
+        /// Make a HTTP DELETE request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Delete<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Delete, path, options, config), options, config);
+        }
+
+        /// <summary>
+        /// Make a HTTP HEAD request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Head<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Head, path, options, config), options, config);
+        }
+
+        /// <summary>
+        /// Make a HTTP OPTION request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Options<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Options, path, options, config), options, config);
+        }
+
+        /// <summary>
+        /// Make a HTTP PATCH request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Patch<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Patch, path, options, config), options, config);
+        }
+        #endregion ISynchronousClient
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiException.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiException.cs
new file mode 100644
index 00000000000..67d9888d6a3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiException.cs
@@ -0,0 +1,68 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// API Exception
+    /// </summary>
+    public class ApiException : Exception
+    {
+        /// <summary>
+        /// Gets or sets the error code (HTTP status code)
+        /// </summary>
+        /// <value>The error code (HTTP status code).</value>
+        public int ErrorCode { get; set; }
+
+        /// <summary>
+        /// Gets or sets the error content (body json object)
+        /// </summary>
+        /// <value>The error content (Http response body).</value>
+        public object ErrorContent { get; private set; }
+
+        /// <summary>
+        /// Gets or sets the HTTP headers
+        /// </summary>
+        /// <value>HTTP headers</value>
+        public Multimap<string, string> Headers { get; private set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiException"/> class.
+        /// </summary>
+        public ApiException() { }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiException"/> class.
+        /// </summary>
+        /// <param name="errorCode">HTTP status code.</param>
+        /// <param name="message">Error message.</param>
+        public ApiException(int errorCode, string message) : base(message)
+        {
+            this.ErrorCode = errorCode;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiException"/> class.
+        /// </summary>
+        /// <param name="errorCode">HTTP status code.</param>
+        /// <param name="message">Error message.</param>
+        /// <param name="errorContent">Error content.</param>
+        /// <param name="headers">HTTP Headers.</param>
+        public ApiException(int errorCode, string message, object errorContent = null, Multimap<string, string> headers = null) : base(message)
+        {
+            this.ErrorCode = errorCode;
+            this.ErrorContent = errorContent;
+            this.Headers = headers;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiResponse.cs
new file mode 100644
index 00000000000..ca2de833a5a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ApiResponse.cs
@@ -0,0 +1,166 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Provides a non-generic contract for the ApiResponse wrapper.
+    /// </summary>
+    public interface IApiResponse
+    {
+        /// <summary>
+        /// The data type of <see cref="Content"/>
+        /// </summary>
+        Type ResponseType { get; }
+
+        /// <summary>
+        /// The content of this response
+        /// </summary>
+        Object Content { get; }
+
+        /// <summary>
+        /// Gets or sets the status code (HTTP status code)
+        /// </summary>
+        /// <value>The status code.</value>
+        HttpStatusCode StatusCode { get; }
+
+        /// <summary>
+        /// Gets or sets the HTTP headers
+        /// </summary>
+        /// <value>HTTP headers</value>
+        Multimap<string, string> Headers { get; }
+
+        /// <summary>
+        /// Gets or sets any error text defined by the calling client.
+        /// </summary>
+        string ErrorText { get; set; }
+
+        /// <summary>
+        /// Gets or sets any cookies passed along on the response.
+        /// </summary>
+        List<Cookie> Cookies { get; set; }
+
+        /// <summary>
+        /// The raw content of this response
+        /// </summary>
+        string RawContent { get; }
+    }
+
+    /// <summary>
+    /// API Response
+    /// </summary>
+    public class ApiResponse<T> : IApiResponse
+    {
+        #region Properties
+
+        /// <summary>
+        /// Gets or sets the status code (HTTP status code)
+        /// </summary>
+        /// <value>The status code.</value>
+        public HttpStatusCode StatusCode { get; }
+
+        /// <summary>
+        /// Gets or sets the HTTP headers
+        /// </summary>
+        /// <value>HTTP headers</value>
+        public Multimap<string, string> Headers { get; }
+
+        /// <summary>
+        /// Gets or sets the data (parsed HTTP body)
+        /// </summary>
+        /// <value>The data.</value>
+        public T Data { get; }
+
+        /// <summary>
+        /// Gets or sets any error text defined by the calling client.
+        /// </summary>
+        public string ErrorText { get; set; }
+
+        /// <summary>
+        /// Gets or sets any cookies passed along on the response.
+        /// </summary>
+        public List<Cookie> Cookies { get; set; }
+
+        /// <summary>
+        /// The content of this response
+        /// </summary>
+        public Type ResponseType
+        {
+            get { return typeof(T); }
+        }
+
+        /// <summary>
+        /// The data type of <see cref="Content"/>
+        /// </summary>
+        public object Content
+        {
+            get { return Data; }
+        }
+
+        /// <summary>
+        /// The raw content
+        /// </summary>
+        public string RawContent { get; }
+
+        #endregion Properties
+
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="headers">HTTP headers.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        /// <param name="rawContent">Raw content.</param>
+        public ApiResponse(HttpStatusCode statusCode, Multimap<string, string> headers, T data, string rawContent)
+        {
+            StatusCode = statusCode;
+            Headers = headers;
+            Data = data;
+            RawContent = rawContent;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="headers">HTTP headers.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        public ApiResponse(HttpStatusCode statusCode, Multimap<string, string> headers, T data) : this(statusCode, headers, data, null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        /// <param name="rawContent">Raw content.</param>
+        public ApiResponse(HttpStatusCode statusCode, T data, string rawContent) : this(statusCode, null, data, rawContent)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        public ApiResponse(HttpStatusCode statusCode, T data) : this(statusCode, data, null)
+        {
+        }
+
+        #endregion Constructors
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs
new file mode 100644
index 00000000000..f900e716ae8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/OAuthAuthenticator.cs
@@ -0,0 +1,105 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using RestSharp;
+using RestSharp.Authenticators;
+
+namespace Org.OpenAPITools.Client.Auth
+{
+    /// <summary>
+    /// An authenticator for OAuth2 authentication flows
+    /// </summary>
+    public class OAuthAuthenticator : AuthenticatorBase
+    {
+        readonly string _tokenUrl;
+        readonly string _clientId;
+        readonly string _clientSecret;
+        readonly string _grantType;
+        readonly JsonSerializerSettings _serializerSettings;
+        readonly IReadableConfiguration _configuration;
+
+        /// <summary>
+        /// Initialize the OAuth2 Authenticator
+        /// </summary>
+        public OAuthAuthenticator(
+            string tokenUrl,
+            string clientId,
+            string clientSecret,
+            OAuthFlow? flow,
+            JsonSerializerSettings serializerSettings,
+            IReadableConfiguration configuration) : base("")
+        {
+            _tokenUrl = tokenUrl;
+            _clientId = clientId;
+            _clientSecret = clientSecret;
+            _serializerSettings = serializerSettings;
+            _configuration = configuration;
+
+            switch (flow)
+            {
+                /*case OAuthFlow.ACCESS_CODE:
+                    _grantType = "authorization_code";
+                    break;
+                case OAuthFlow.IMPLICIT:
+                    _grantType = "implicit";
+                    break;
+                case OAuthFlow.PASSWORD:
+                    _grantType = "password";
+                    break;*/
+                case OAuthFlow.APPLICATION:
+                    _grantType = "client_credentials";
+                    break;
+                default:
+                    break;
+            }
+        }
+
+        /// <summary>
+        /// Creates an authentication parameter from an access token.
+        /// </summary>
+        /// <param name="accessToken">Access token to create a parameter from.</param>
+        /// <returns>An authentication parameter.</returns>
+        protected override async ValueTask<Parameter> GetAuthenticationParameter(string accessToken)
+        {
+            var token = string.IsNullOrEmpty(Token) ? await GetToken().ConfigureAwait(false) : Token;
+            return new HeaderParameter(KnownHeaders.Authorization, token);
+        }
+
+        /// <summary>
+        /// Gets the token from the OAuth2 server.
+        /// </summary>
+        /// <returns>An authentication token.</returns>
+        async Task<string> GetToken()
+        {
+            var client = new RestClient(_tokenUrl,
+                configureSerialization: serializerConfig => serializerConfig.UseSerializer(() => new CustomJsonCodec(_serializerSettings, _configuration)));
+
+            var request = new RestRequest()
+                .AddParameter("grant_type", _grantType)
+                .AddParameter("client_id", _clientId)
+                .AddParameter("client_secret", _clientSecret);
+            var response = await client.PostAsync<TokenResponse>(request).ConfigureAwait(false);
+            
+            // RFC6749 - token_type is case insensitive.
+            // RFC6750 - In Authorization header Bearer should be capitalized.
+            // Fix the capitalization irrespective of token_type casing.
+            switch (response.TokenType?.ToLower())
+            {
+                case "bearer":
+                    return $"Bearer {response.AccessToken}";
+                default:
+                    return $"{response.TokenType} {response.AccessToken}";
+            }
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs
new file mode 100644
index 00000000000..e2257409258
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/OAuthFlow.cs
@@ -0,0 +1,27 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+namespace Org.OpenAPITools.Client.Auth
+{
+    /// <summary>
+    /// Available flows for OAuth2 authentication
+    /// </summary>
+    public enum OAuthFlow
+    {
+        /// <summary>Authorization code flow</summary>
+        ACCESS_CODE,
+        /// <summary>Implicit flow</summary>
+        IMPLICIT,
+        /// <summary>Password flow</summary>
+        PASSWORD,
+        /// <summary>Client credentials flow</summary>
+        APPLICATION
+    }
+}
\ No newline at end of file
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/TokenResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/TokenResponse.cs
new file mode 100644
index 00000000000..0a94e17e122
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Auth/TokenResponse.cs
@@ -0,0 +1,22 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Client.Auth
+{
+    class TokenResponse
+    {
+        [JsonProperty("token_type")]
+        public string TokenType { get; set; }
+        [JsonProperty("access_token")]
+        public string AccessToken { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ClientUtils.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ClientUtils.cs
new file mode 100644
index 00000000000..d5acb18947c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ClientUtils.cs
@@ -0,0 +1,263 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using KellermanSoftware.CompareNetObjects;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Utility functions providing some benefit to API client consumers.
+    /// </summary>
+    public static class ClientUtils
+    {
+        /// <summary>
+        /// An instance of CompareLogic.
+        /// </summary>
+        public static CompareLogic compareLogic;
+
+        /// <summary>
+        /// Static constructor to initialise compareLogic.
+        /// </summary>
+        static ClientUtils()
+        {
+            ComparisonConfig comparisonConfig = new();
+            comparisonConfig.UseHashCodeIdentifier = true;
+            compareLogic = new(comparisonConfig);
+        }
+
+        /// <summary>
+        /// Sanitize filename by removing the path
+        /// </summary>
+        /// <param name="filename">Filename</param>
+        /// <returns>Filename</returns>
+        public static string SanitizeFilename(string filename)
+        {
+            Match match = Regex.Match(filename, @".*[/\\](.*)$");
+            return match.Success ? match.Groups[1].Value : filename;
+        }
+
+        /// <summary>
+        /// Convert params to key/value pairs.
+        /// Use collectionFormat to properly format lists and collections.
+        /// </summary>
+        /// <param name="collectionFormat">The swagger-supported collection format, one of: csv, tsv, ssv, pipes, multi</param>
+        /// <param name="name">Key name.</param>
+        /// <param name="value">Value object.</param>
+        /// <returns>A multimap of keys with 1..n associated values.</returns>
+        public static Multimap<string, string> ParameterToMultiMap(string collectionFormat, string name, object value)
+        {
+            var parameters = new Multimap<string, string>();
+
+            if (value is ICollection collection && collectionFormat == "multi")
+            {
+                foreach (var item in collection)
+                {
+                    parameters.Add(name, ParameterToString(item));
+                }
+            }
+            else if (value is IDictionary dictionary)
+            {
+                if(collectionFormat == "deepObject") {
+                    foreach (DictionaryEntry entry in dictionary)
+                    {
+                        parameters.Add(name + "[" + entry.Key + "]", ParameterToString(entry.Value));
+                    }
+                }
+                else {
+                    foreach (DictionaryEntry entry in dictionary)
+                    {
+                        parameters.Add(entry.Key.ToString(), ParameterToString(entry.Value));
+                    }
+                }
+            }
+            else
+            {
+                parameters.Add(name, ParameterToString(value));
+            }
+
+            return parameters;
+        }
+
+        /// <summary>
+        /// If parameter is DateTime, output in a formatted string (default ISO 8601), customizable with Configuration.DateTime.
+        /// If parameter is a list, join the list with ",".
+        /// Otherwise just return the string.
+        /// </summary>
+        /// <param name="obj">The parameter (header, path, query, form).</param>
+        /// <param name="configuration">An optional configuration instance, providing formatting options used in processing.</param>
+        /// <returns>Formatted string.</returns>
+        public static string ParameterToString(object obj, IReadableConfiguration configuration = null)
+        {
+            if (obj is DateTime dateTime)
+                // Return a formatted date string - Can be customized with Configuration.DateTimeFormat
+                // Defaults to an ISO 8601, using the known as a Round-trip date/time pattern ("o")
+                // https://msdn.microsoft.com/en-us/library/az4se3k1(v=vs.110).aspx#Anchor_8
+                // For example: 2009-06-15T13:45:30.0000000
+                return dateTime.ToString((configuration ?? GlobalConfiguration.Instance).DateTimeFormat);
+            if (obj is DateTimeOffset dateTimeOffset)
+                // Return a formatted date string - Can be customized with Configuration.DateTimeFormat
+                // Defaults to an ISO 8601, using the known as a Round-trip date/time pattern ("o")
+                // https://msdn.microsoft.com/en-us/library/az4se3k1(v=vs.110).aspx#Anchor_8
+                // For example: 2009-06-15T13:45:30.0000000
+                return dateTimeOffset.ToString((configuration ?? GlobalConfiguration.Instance).DateTimeFormat);
+            if (obj is bool boolean)
+                return boolean ? "true" : "false";
+            if (obj is ICollection collection) {
+                List<string> entries = new List<string>();
+                foreach (var entry in collection)
+                    entries.Add(ParameterToString(entry, configuration));
+                return string.Join(",", entries);
+            }
+            if (obj is Enum && HasEnumMemberAttrValue(obj))
+                return GetEnumMemberAttrValue(obj);
+
+            return Convert.ToString(obj, CultureInfo.InvariantCulture);
+        }
+
+        /// <summary>
+        /// Serializes the given object when not null. Otherwise return null.
+        /// </summary>
+        /// <param name="obj">The object to serialize.</param>
+        /// <returns>Serialized string.</returns>
+        public static string Serialize(object obj)
+        {
+            return obj != null ? Newtonsoft.Json.JsonConvert.SerializeObject(obj) : null;
+        }
+
+        /// <summary>
+        /// Encode string in base64 format.
+        /// </summary>
+        /// <param name="text">string to be encoded.</param>
+        /// <returns>Encoded string.</returns>
+        public static string Base64Encode(string text)
+        {
+            return Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(text));
+        }
+
+        /// <summary>
+        /// Convert stream to byte array
+        /// </summary>
+        /// <param name="inputStream">Input stream to be converted</param>
+        /// <returns>Byte array</returns>
+        public static byte[] ReadAsBytes(Stream inputStream)
+        {
+            using (var ms = new MemoryStream())
+            {
+                inputStream.CopyTo(ms);
+                return ms.ToArray();
+            }
+        }
+
+        /// <summary>
+        /// Select the Content-Type header's value from the given content-type array:
+        /// if JSON type exists in the given array, use it;
+        /// otherwise use the first one defined in 'consumes'
+        /// </summary>
+        /// <param name="contentTypes">The Content-Type array to select from.</param>
+        /// <returns>The Content-Type header to use.</returns>
+        public static string SelectHeaderContentType(string[] contentTypes)
+        {
+            if (contentTypes.Length == 0)
+                return null;
+
+            foreach (var contentType in contentTypes)
+            {
+                if (IsJsonMime(contentType))
+                    return contentType;
+            }
+
+            return contentTypes[0]; // use the first content type specified in 'consumes'
+        }
+
+        /// <summary>
+        /// Select the Accept header's value from the given accepts array:
+        /// if JSON exists in the given array, use it;
+        /// otherwise use all of them (joining into a string)
+        /// </summary>
+        /// <param name="accepts">The accepts array to select from.</param>
+        /// <returns>The Accept header to use.</returns>
+        public static string SelectHeaderAccept(string[] accepts)
+        {
+            if (accepts.Length == 0)
+                return null;
+
+            if (accepts.Contains("application/json", StringComparer.OrdinalIgnoreCase))
+                return "application/json";
+
+            return string.Join(",", accepts);
+        }
+
+        /// <summary>
+        /// Provides a case-insensitive check that a provided content type is a known JSON-like content type.
+        /// </summary>
+        public static readonly Regex JsonRegex = new Regex("(?i)^(application/json|[^;/ \t]+/[^;/ \t]+[+]json)[ \t]*(;.*)?$");
+
+        /// <summary>
+        /// Check if the given MIME is a JSON MIME.
+        /// JSON MIME examples:
+        ///    application/json
+        ///    application/json; charset=UTF8
+        ///    APPLICATION/JSON
+        ///    application/vnd.company+json
+        /// </summary>
+        /// <param name="mime">MIME</param>
+        /// <returns>Returns True if MIME type is json.</returns>
+        public static bool IsJsonMime(string mime)
+        {
+            if (string.IsNullOrWhiteSpace(mime)) return false;
+
+            return JsonRegex.IsMatch(mime) || mime.Equals("application/json-patch+json");
+        }
+
+        /// <summary>
+        /// Is the Enum decorated with EnumMember Attribute
+        /// </summary>
+        /// <param name="enumVal"></param>
+        /// <returns>true if found</returns>
+        private static bool HasEnumMemberAttrValue(object enumVal)
+        {
+            if (enumVal == null)
+                throw new ArgumentNullException(nameof(enumVal));
+            var enumType = enumVal.GetType();
+            var memInfo = enumType.GetMember(enumVal.ToString() ?? throw new InvalidOperationException());
+            var attr = memInfo.FirstOrDefault()?.GetCustomAttributes(false).OfType<EnumMemberAttribute>().FirstOrDefault();
+            if (attr != null) return true;
+                return false;
+        }
+
+        /// <summary>
+        /// Get the EnumMember value
+        /// </summary>
+        /// <param name="enumVal"></param>
+        /// <returns>EnumMember value as string otherwise null</returns>
+        private static string GetEnumMemberAttrValue(object enumVal)
+        {
+            if (enumVal == null)
+                throw new ArgumentNullException(nameof(enumVal));
+            var enumType = enumVal.GetType();
+            var memInfo = enumType.GetMember(enumVal.ToString() ?? throw new InvalidOperationException());
+            var attr = memInfo.FirstOrDefault()?.GetCustomAttributes(false).OfType<EnumMemberAttribute>().FirstOrDefault();
+            if (attr != null)
+            {
+                return attr.Value;
+            }
+            return null;
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Configuration.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Configuration.cs
new file mode 100644
index 00000000000..f27abb3d78b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Configuration.cs
@@ -0,0 +1,751 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Reflection;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using System.Net.Http;
+using System.Net.Security;
+using Org.OpenAPITools.Client.Auth;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Represents a set of configuration settings
+    /// </summary>
+    public class Configuration : IReadableConfiguration
+    {
+        #region Constants
+
+        /// <summary>
+        /// Version of the package.
+        /// </summary>
+        /// <value>Version of the package.</value>
+        public const string Version = "1.0.0";
+
+        /// <summary>
+        /// Identifier for ISO 8601 DateTime Format
+        /// </summary>
+        /// <remarks>See https://msdn.microsoft.com/en-us/library/az4se3k1(v=vs.110).aspx#Anchor_8 for more information.</remarks>
+        // ReSharper disable once InconsistentNaming
+        public const string ISO8601_DATETIME_FORMAT = "o";
+
+        #endregion Constants
+
+        #region Static Members
+
+        /// <summary>
+        /// Default creation of exceptions for a given method name and response object
+        /// </summary>
+        public static readonly ExceptionFactory DefaultExceptionFactory = (methodName, response) =>
+        {
+            var status = (int)response.StatusCode;
+            if (status >= 400)
+            {
+                return new ApiException(status,
+                    string.Format("Error calling {0}: {1}", methodName, response.RawContent),
+                    response.RawContent, response.Headers);
+            }
+            if (status == 0)
+            {
+                return new ApiException(status,
+                    string.Format("Error calling {0}: {1}", methodName, response.ErrorText), response.ErrorText);
+            }
+            return null;
+        };
+
+        #endregion Static Members
+
+        #region Private Members
+
+        /// <summary>
+        /// Defines the base path of the target API server.
+        /// Example: http://localhost:3000/v1/
+        /// </summary>
+        private string _basePath;
+
+        private bool _useDefaultCredentials = false;
+
+        /// <summary>
+        /// Gets or sets the API key based on the authentication name.
+        /// This is the key and value comprising the "secret" for accessing an API.
+        /// </summary>
+        /// <value>The API key.</value>
+        private IDictionary<string, string> _apiKey;
+
+        /// <summary>
+        /// Gets or sets the prefix (e.g. Token) of the API key based on the authentication name.
+        /// </summary>
+        /// <value>The prefix of the API key.</value>
+        private IDictionary<string, string> _apiKeyPrefix;
+
+        private string _dateTimeFormat = ISO8601_DATETIME_FORMAT;
+        private string _tempFolderPath = Path.GetTempPath();
+
+        /// <summary>
+        /// Gets or sets the servers defined in the OpenAPI spec.
+        /// </summary>
+        /// <value>The servers</value>
+        private IList<IReadOnlyDictionary<string, object>> _servers;
+
+        /// <summary>
+        /// Gets or sets the operation servers defined in the OpenAPI spec.
+        /// </summary>
+        /// <value>The operation servers</value>
+        private IReadOnlyDictionary<string, List<IReadOnlyDictionary<string, object>>> _operationServers;
+
+
+        /// <summary>
+        /// HttpSigning configuration
+        /// </summary>
+        private HttpSigningConfiguration _HttpSigningConfiguration = null;
+        #endregion Private Members
+
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Configuration" /> class
+        /// </summary>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("ReSharper", "VirtualMemberCallInConstructor")]
+        public Configuration()
+        {
+            Proxy = null;
+            UserAgent = WebUtility.UrlEncode("OpenAPI-Generator/1.0.0/csharp");
+            BasePath = "http://petstore.swagger.io:80/v2";
+            DefaultHeaders = new ConcurrentDictionary<string, string>();
+            ApiKey = new ConcurrentDictionary<string, string>();
+            ApiKeyPrefix = new ConcurrentDictionary<string, string>();
+            Servers = new List<IReadOnlyDictionary<string, object>>()
+            {
+                {
+                    new Dictionary<string, object> {
+                        {"url", "http://{server}.swagger.io:{port}/v2"},
+                        {"description", "petstore server"},
+                        {
+                            "variables", new Dictionary<string, object> {
+                                {
+                                    "server", new Dictionary<string, object> {
+                                        {"description", "No description provided"},
+                                        {"default_value", "petstore"},
+                                        {
+                                            "enum_values", new List<string>() {
+                                                "petstore",
+                                                "qa-petstore",
+                                                "dev-petstore"
+                                            }
+                                        }
+                                    }
+                                },
+                                {
+                                    "port", new Dictionary<string, object> {
+                                        {"description", "No description provided"},
+                                        {"default_value", "80"},
+                                        {
+                                            "enum_values", new List<string>() {
+                                                "80",
+                                                "8080"
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                },
+                {
+                    new Dictionary<string, object> {
+                        {"url", "https://localhost:8080/{version}"},
+                        {"description", "The local server"},
+                        {
+                            "variables", new Dictionary<string, object> {
+                                {
+                                    "version", new Dictionary<string, object> {
+                                        {"description", "No description provided"},
+                                        {"default_value", "v2"},
+                                        {
+                                            "enum_values", new List<string>() {
+                                                "v1",
+                                                "v2"
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                },
+                {
+                    new Dictionary<string, object> {
+                        {"url", "https://127.0.0.1/no_variable"},
+                        {"description", "The local server without variables"},
+                    }
+                }
+            };
+            OperationServers = new Dictionary<string, List<IReadOnlyDictionary<string, object>>>()
+            {
+                {
+                    "PetApi.AddPet", new List<IReadOnlyDictionary<string, object>>
+                    {
+                        {
+                            new Dictionary<string, object>
+                            {
+                                {"url", "http://petstore.swagger.io/v2"},
+                                {"description", "No description provided"}
+                            }
+                        },
+                        {
+                            new Dictionary<string, object>
+                            {
+                                {"url", "http://path-server-test.petstore.local/v2"},
+                                {"description", "No description provided"}
+                            }
+                        },
+                    }
+                },
+                {
+                    "PetApi.UpdatePet", new List<IReadOnlyDictionary<string, object>>
+                    {
+                        {
+                            new Dictionary<string, object>
+                            {
+                                {"url", "http://petstore.swagger.io/v2"},
+                                {"description", "No description provided"}
+                            }
+                        },
+                        {
+                            new Dictionary<string, object>
+                            {
+                                {"url", "http://path-server-test.petstore.local/v2"},
+                                {"description", "No description provided"}
+                            }
+                        },
+                    }
+                },
+            };
+
+            // Setting Timeout has side effects (forces ApiClient creation).
+            Timeout = 100000;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Configuration" /> class
+        /// </summary>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("ReSharper", "VirtualMemberCallInConstructor")]
+        public Configuration(
+            IDictionary<string, string> defaultHeaders,
+            IDictionary<string, string> apiKey,
+            IDictionary<string, string> apiKeyPrefix,
+            string basePath = "http://petstore.swagger.io:80/v2") : this()
+        {
+            if (string.IsNullOrWhiteSpace(basePath))
+                throw new ArgumentException("The provided basePath is invalid.", "basePath");
+            if (defaultHeaders == null)
+                throw new ArgumentNullException("defaultHeaders");
+            if (apiKey == null)
+                throw new ArgumentNullException("apiKey");
+            if (apiKeyPrefix == null)
+                throw new ArgumentNullException("apiKeyPrefix");
+
+            BasePath = basePath;
+
+            foreach (var keyValuePair in defaultHeaders)
+            {
+                DefaultHeaders.Add(keyValuePair);
+            }
+
+            foreach (var keyValuePair in apiKey)
+            {
+                ApiKey.Add(keyValuePair);
+            }
+
+            foreach (var keyValuePair in apiKeyPrefix)
+            {
+                ApiKeyPrefix.Add(keyValuePair);
+            }
+        }
+
+        #endregion Constructors
+
+        #region Properties
+
+        /// <summary>
+        /// Gets or sets the base path for API access.
+        /// </summary>
+        public virtual string BasePath 
+        {
+            get { return _basePath; }
+            set { _basePath = value; }
+        }
+
+        /// <summary>
+        /// Determine whether or not the "default credentials" (e.g. the user account under which the current process is running) will be sent along to the server. The default is false.
+        /// </summary>
+        public virtual bool UseDefaultCredentials
+        {
+            get { return _useDefaultCredentials; }
+            set { _useDefaultCredentials = value; }
+        }
+
+        /// <summary>
+        /// Gets or sets the default header.
+        /// </summary>
+        [Obsolete("Use DefaultHeaders instead.")]
+        public virtual IDictionary<string, string> DefaultHeader
+        {
+            get
+            {
+                return DefaultHeaders;
+            }
+            set
+            {
+                DefaultHeaders = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the default headers.
+        /// </summary>
+        public virtual IDictionary<string, string> DefaultHeaders { get; set; }
+
+        /// <summary>
+        /// Gets or sets the HTTP timeout (milliseconds) of ApiClient. Default to 100000 milliseconds.
+        /// </summary>
+        public virtual int Timeout { get; set; }
+
+        /// <summary>
+        /// Gets or sets the proxy
+        /// </summary>
+        /// <value>Proxy.</value>
+        public virtual WebProxy Proxy { get; set; }
+
+        /// <summary>
+        /// Gets or sets the HTTP user agent.
+        /// </summary>
+        /// <value>Http user agent.</value>
+        public virtual string UserAgent { get; set; }
+
+        /// <summary>
+        /// Gets or sets the username (HTTP basic authentication).
+        /// </summary>
+        /// <value>The username.</value>
+        public virtual string Username { get; set; }
+
+        /// <summary>
+        /// Gets or sets the password (HTTP basic authentication).
+        /// </summary>
+        /// <value>The password.</value>
+        public virtual string Password { get; set; }
+
+        /// <summary>
+        /// Gets the API key with prefix.
+        /// </summary>
+        /// <param name="apiKeyIdentifier">API key identifier (authentication scheme).</param>
+        /// <returns>API key with prefix.</returns>
+        public string GetApiKeyWithPrefix(string apiKeyIdentifier)
+        {
+            string apiKeyValue;
+            ApiKey.TryGetValue(apiKeyIdentifier, out apiKeyValue);
+            string apiKeyPrefix;
+            if (ApiKeyPrefix.TryGetValue(apiKeyIdentifier, out apiKeyPrefix))
+            {
+                return apiKeyPrefix + " " + apiKeyValue;
+            }
+
+            return apiKeyValue;
+        }
+
+        /// <summary>
+        /// Gets or sets certificate collection to be sent with requests.
+        /// </summary>
+        /// <value>X509 Certificate collection.</value>
+        public X509CertificateCollection ClientCertificates { get; set; }
+
+        /// <summary>
+        /// Gets or sets the access token for OAuth2 authentication.
+        ///
+        /// This helper property simplifies code generation.
+        /// </summary>
+        /// <value>The access token.</value>
+        public virtual string AccessToken { get; set; }
+
+        /// <summary>
+        /// Gets or sets the token URL for OAuth2 authentication.
+        /// </summary>
+        /// <value>The OAuth Token URL.</value>
+        public virtual string OAuthTokenUrl { get; set; }
+
+        /// <summary>
+        /// Gets or sets the client ID for OAuth2 authentication.
+        /// </summary>
+        /// <value>The OAuth Client ID.</value>
+        public virtual string OAuthClientId { get; set; }
+
+        /// <summary>
+        /// Gets or sets the client secret for OAuth2 authentication.
+        /// </summary>
+        /// <value>The OAuth Client Secret.</value>
+        public virtual string OAuthClientSecret { get; set; }
+
+        /// <summary>
+        /// Gets or sets the flow for OAuth2 authentication.
+        /// </summary>
+        /// <value>The OAuth Flow.</value>
+        public virtual OAuthFlow? OAuthFlow { get; set; }
+
+        /// <summary>
+        /// Gets or sets the temporary folder path to store the files downloaded from the server.
+        /// </summary>
+        /// <value>Folder path.</value>
+        public virtual string TempFolderPath
+        {
+            get { return _tempFolderPath; }
+
+            set
+            {
+                if (string.IsNullOrEmpty(value))
+                {
+                    _tempFolderPath = Path.GetTempPath();
+                    return;
+                }
+
+                // create the directory if it does not exist
+                if (!Directory.Exists(value))
+                {
+                    Directory.CreateDirectory(value);
+                }
+
+                // check if the path contains directory separator at the end
+                if (value[value.Length - 1] == Path.DirectorySeparatorChar)
+                {
+                    _tempFolderPath = value;
+                }
+                else
+                {
+                    _tempFolderPath = value + Path.DirectorySeparatorChar;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the date time format used when serializing in the ApiClient
+        /// By default, it's set to ISO 8601 - "o", for others see:
+        /// https://msdn.microsoft.com/en-us/library/az4se3k1(v=vs.110).aspx
+        /// and https://msdn.microsoft.com/en-us/library/8kb3ddd4(v=vs.110).aspx
+        /// No validation is done to ensure that the string you're providing is valid
+        /// </summary>
+        /// <value>The DateTimeFormat string</value>
+        public virtual string DateTimeFormat
+        {
+            get { return _dateTimeFormat; }
+            set
+            {
+                if (string.IsNullOrEmpty(value))
+                {
+                    // Never allow a blank or null string, go back to the default
+                    _dateTimeFormat = ISO8601_DATETIME_FORMAT;
+                    return;
+                }
+
+                // Caution, no validation when you choose date time format other than ISO 8601
+                // Take a look at the above links
+                _dateTimeFormat = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the prefix (e.g. Token) of the API key based on the authentication name.
+        ///
+        /// Whatever you set here will be prepended to the value defined in AddApiKey.
+        ///
+        /// An example invocation here might be:
+        /// <example>
+        /// ApiKeyPrefix["Authorization"] = "Bearer";
+        /// </example>
+        /// … where ApiKey["Authorization"] would then be used to set the value of your bearer token.
+        ///
+        /// <remarks>
+        /// OAuth2 workflows should set tokens via AccessToken.
+        /// </remarks>
+        /// </summary>
+        /// <value>The prefix of the API key.</value>
+        public virtual IDictionary<string, string> ApiKeyPrefix
+        {
+            get { return _apiKeyPrefix; }
+            set
+            {
+                if (value == null)
+                {
+                    throw new InvalidOperationException("ApiKeyPrefix collection may not be null.");
+                }
+                _apiKeyPrefix = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the API key based on the authentication name.
+        /// </summary>
+        /// <value>The API key.</value>
+        public virtual IDictionary<string, string> ApiKey
+        {
+            get { return _apiKey; }
+            set
+            {
+                if (value == null)
+                {
+                    throw new InvalidOperationException("ApiKey collection may not be null.");
+                }
+                _apiKey = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the servers.
+        /// </summary>
+        /// <value>The servers.</value>
+        public virtual IList<IReadOnlyDictionary<string, object>> Servers
+        {
+            get { return _servers; }
+            set
+            {
+                if (value == null)
+                {
+                    throw new InvalidOperationException("Servers may not be null.");
+                }
+                _servers = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the operation servers.
+        /// </summary>
+        /// <value>The operation servers.</value>
+        public virtual IReadOnlyDictionary<string, List<IReadOnlyDictionary<string, object>>> OperationServers
+        {
+            get { return _operationServers; }
+            set
+            {
+                if (value == null)
+                {
+                    throw new InvalidOperationException("Operation servers may not be null.");
+                }
+                _operationServers = value;
+            }
+        }
+
+        /// <summary>
+        /// Returns URL based on server settings without providing values
+        /// for the variables
+        /// </summary>
+        /// <param name="index">Array index of the server settings.</param>
+        /// <return>The server URL.</return>
+        public string GetServerUrl(int index)
+        {
+            return GetServerUrl(Servers, index, null);
+        }
+
+        /// <summary>
+        /// Returns URL based on server settings.
+        /// </summary>
+        /// <param name="index">Array index of the server settings.</param>
+        /// <param name="inputVariables">Dictionary of the variables and the corresponding values.</param>
+        /// <return>The server URL.</return>
+        public string GetServerUrl(int index, Dictionary<string, string> inputVariables)
+        {
+            return GetServerUrl(Servers, index, inputVariables);
+        }
+
+        /// <summary>
+        /// Returns URL based on operation server settings.
+        /// </summary>
+        /// <param name="operation">Operation associated with the request path.</param>
+        /// <param name="index">Array index of the server settings.</param>
+        /// <return>The operation server URL.</return>
+        public string GetOperationServerUrl(string operation, int index)
+        {
+            return GetOperationServerUrl(operation, index, null);
+        }
+
+        /// <summary>
+        /// Returns URL based on operation server settings.
+        /// </summary>
+        /// <param name="operation">Operation associated with the request path.</param>
+        /// <param name="index">Array index of the server settings.</param>
+        /// <param name="inputVariables">Dictionary of the variables and the corresponding values.</param>
+        /// <return>The operation server URL.</return>
+        public string GetOperationServerUrl(string operation, int index, Dictionary<string, string> inputVariables)
+        {
+            if (operation != null && OperationServers.TryGetValue(operation, out var operationServer))
+            {
+                return GetServerUrl(operationServer, index, inputVariables);
+            }
+
+            return null;
+        }
+
+        /// <summary>
+        /// Returns URL based on server settings.
+        /// </summary>
+        /// <param name="servers">Dictionary of server settings.</param>
+        /// <param name="index">Array index of the server settings.</param>
+        /// <param name="inputVariables">Dictionary of the variables and the corresponding values.</param>
+        /// <return>The server URL.</return>
+        private string GetServerUrl(IList<IReadOnlyDictionary<string, object>> servers, int index, Dictionary<string, string> inputVariables)
+        {
+            if (index < 0 || index >= servers.Count)
+            {
+                throw new InvalidOperationException($"Invalid index {index} when selecting the server. Must be less than {servers.Count}.");
+            }
+
+            if (inputVariables == null)
+            {
+                inputVariables = new Dictionary<string, string>();
+            }
+
+            IReadOnlyDictionary<string, object> server = servers[index];
+            string url = (string)server["url"];
+
+            if (server.ContainsKey("variables"))
+            {
+                // go through each variable and assign a value
+                foreach (KeyValuePair<string, object> variable in (IReadOnlyDictionary<string, object>)server["variables"])
+                {
+
+                    IReadOnlyDictionary<string, object> serverVariables = (IReadOnlyDictionary<string, object>)(variable.Value);
+
+                    if (inputVariables.ContainsKey(variable.Key))
+                    {
+                        if (((List<string>)serverVariables["enum_values"]).Contains(inputVariables[variable.Key]))
+                        {
+                            url = url.Replace("{" + variable.Key + "}", inputVariables[variable.Key]);
+                        }
+                        else
+                        {
+                            throw new InvalidOperationException($"The variable `{variable.Key}` in the server URL has invalid value #{inputVariables[variable.Key]}. Must be {(List<string>)serverVariables["enum_values"]}");
+                        }
+                    }
+                    else
+                    {
+                        // use default value
+                        url = url.Replace("{" + variable.Key + "}", (string)serverVariables["default_value"]);
+                    }
+                }
+            }
+
+            return url;
+        }
+
+        /// <summary>
+        /// Gets and Sets the HttpSigningConfiguration
+        /// </summary>
+        public HttpSigningConfiguration HttpSigningConfiguration
+        {
+            get { return _HttpSigningConfiguration; }
+            set { _HttpSigningConfiguration = value; }
+        }
+        
+        /// <summary>
+        /// Gets and Sets the RemoteCertificateValidationCallback
+        /// </summary>
+        public RemoteCertificateValidationCallback RemoteCertificateValidationCallback { get; set; }
+
+        #endregion Properties
+
+        #region Methods
+
+        /// <summary>
+        /// Returns a string with essential information for debugging.
+        /// </summary>
+        public static string ToDebugReport()
+        {
+            string report = "C# SDK (Org.OpenAPITools) Debug Report:\n";
+            report += "    OS: " + System.Environment.OSVersion + "\n";
+            report += "    .NET Framework Version: " + System.Environment.Version  + "\n";
+            report += "    Version of the API: 1.0.0\n";
+            report += "    SDK Package Version: 1.0.0\n";
+
+            return report;
+        }
+
+        /// <summary>
+        /// Add Api Key Header.
+        /// </summary>
+        /// <param name="key">Api Key name.</param>
+        /// <param name="value">Api Key value.</param>
+        /// <returns></returns>
+        public void AddApiKey(string key, string value)
+        {
+            ApiKey[key] = value;
+        }
+
+        /// <summary>
+        /// Sets the API key prefix.
+        /// </summary>
+        /// <param name="key">Api Key name.</param>
+        /// <param name="value">Api Key value.</param>
+        public void AddApiKeyPrefix(string key, string value)
+        {
+            ApiKeyPrefix[key] = value;
+        }
+
+        #endregion Methods
+
+        #region Static Members
+        /// <summary>
+        /// Merge configurations.
+        /// </summary>
+        /// <param name="first">First configuration.</param>
+        /// <param name="second">Second configuration.</param>
+        /// <return>Merged configuration.</return>
+        public static IReadableConfiguration MergeConfigurations(IReadableConfiguration first, IReadableConfiguration second)
+        {
+            if (second == null) return first ?? GlobalConfiguration.Instance;
+
+            Dictionary<string, string> apiKey = first.ApiKey.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
+            Dictionary<string, string> apiKeyPrefix = first.ApiKeyPrefix.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
+            Dictionary<string, string> defaultHeaders = first.DefaultHeaders.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
+
+            foreach (var kvp in second.ApiKey) apiKey[kvp.Key] = kvp.Value;
+            foreach (var kvp in second.ApiKeyPrefix) apiKeyPrefix[kvp.Key] = kvp.Value;
+            foreach (var kvp in second.DefaultHeaders) defaultHeaders[kvp.Key] = kvp.Value;
+
+            var config = new Configuration
+            {
+                ApiKey = apiKey,
+                ApiKeyPrefix = apiKeyPrefix,
+                DefaultHeaders = defaultHeaders,
+                BasePath = second.BasePath ?? first.BasePath,
+                Timeout = second.Timeout,
+                Proxy = second.Proxy ?? first.Proxy,
+                UserAgent = second.UserAgent ?? first.UserAgent,
+                Username = second.Username ?? first.Username,
+                Password = second.Password ?? first.Password,
+                AccessToken = second.AccessToken ?? first.AccessToken,
+                OAuthTokenUrl = second.OAuthTokenUrl ?? first.OAuthTokenUrl,
+                OAuthClientId = second.OAuthClientId ?? first.OAuthClientId,
+                OAuthClientSecret = second.OAuthClientSecret ?? first.OAuthClientSecret,
+                OAuthFlow = second.OAuthFlow ?? first.OAuthFlow,
+                HttpSigningConfiguration = second.HttpSigningConfiguration ?? first.HttpSigningConfiguration,
+                TempFolderPath = second.TempFolderPath ?? first.TempFolderPath,
+                DateTimeFormat = second.DateTimeFormat ?? first.DateTimeFormat,
+                ClientCertificates = second.ClientCertificates ?? first.ClientCertificates,
+                UseDefaultCredentials = second.UseDefaultCredentials,
+                RemoteCertificateValidationCallback = second.RemoteCertificateValidationCallback ?? first.RemoteCertificateValidationCallback,
+            };
+            return config;
+        }
+        #endregion Static Members
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ExceptionFactory.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ExceptionFactory.cs
new file mode 100644
index 00000000000..43624dd7c86
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ExceptionFactory.cs
@@ -0,0 +1,22 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// A delegate to ExceptionFactory method
+    /// </summary>
+    /// <param name="methodName">Method name</param>
+    /// <param name="response">Response</param>
+    /// <returns>Exceptions</returns>
+    public delegate Exception ExceptionFactory(string methodName, IApiResponse response);
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/GlobalConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/GlobalConfiguration.cs
new file mode 100644
index 00000000000..cbee70bca37
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/GlobalConfiguration.cs
@@ -0,0 +1,67 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System.Collections.Generic;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// <see cref="GlobalConfiguration"/> provides a compile-time extension point for globally configuring
+    /// API Clients.
+    /// </summary>
+    /// <remarks>
+    /// A customized implementation via partial class may reside in another file and may
+    /// be excluded from automatic generation via a .openapi-generator-ignore file.
+    /// </remarks>
+    public partial class GlobalConfiguration : Configuration
+    {
+        #region Private Members
+
+        private static readonly object GlobalConfigSync = new { };
+        private static IReadableConfiguration _globalConfiguration;
+
+        #endregion Private Members
+
+        #region Constructors
+
+        /// <inheritdoc />
+        private GlobalConfiguration()
+        {
+        }
+
+        /// <inheritdoc />
+        public GlobalConfiguration(IDictionary<string, string> defaultHeader, IDictionary<string, string> apiKey, IDictionary<string, string> apiKeyPrefix, string basePath = "http://localhost:3000/api") : base(defaultHeader, apiKey, apiKeyPrefix, basePath)
+        {
+        }
+
+        static GlobalConfiguration()
+        {
+            Instance = new GlobalConfiguration();
+        }
+
+        #endregion Constructors
+
+        /// <summary>
+        /// Gets or sets the default Configuration.
+        /// </summary>
+        /// <value>Configuration.</value>
+        public static IReadableConfiguration Instance
+        {
+            get { return _globalConfiguration; }
+            set
+            {
+                lock (GlobalConfigSync)
+                {
+                    _globalConfiguration = value;
+                }
+            }
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/HttpMethod.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/HttpMethod.cs
new file mode 100644
index 00000000000..39cde64b2a5
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/HttpMethod.cs
@@ -0,0 +1,33 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Http methods supported by swagger
+    /// </summary>
+    public enum HttpMethod
+    {
+        /// <summary>HTTP GET request.</summary>
+        Get,
+        /// <summary>HTTP POST request.</summary>
+        Post,
+        /// <summary>HTTP PUT request.</summary>
+        Put,
+        /// <summary>HTTP DELETE request.</summary>
+        Delete,
+        /// <summary>HTTP HEAD request.</summary>
+        Head,
+        /// <summary>HTTP OPTIONS request.</summary>
+        Options,
+        /// <summary>HTTP PATCH request.</summary>
+        Patch
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
new file mode 100644
index 00000000000..d98d2815297
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/HttpSigningConfiguration.cs
@@ -0,0 +1,796 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Security;
+using System.Security.Cryptography;
+using System.Text;
+using System.Web;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Class for HttpSigning auth related parameter and methods
+    /// </summary>
+    public class HttpSigningConfiguration
+    {
+        /// <summary>
+        /// Initialize the HashAlgorithm and SigningAlgorithm to default value
+        /// </summary>
+        public HttpSigningConfiguration()
+        {
+            HashAlgorithm = HashAlgorithmName.SHA256;
+            SigningAlgorithm = "PKCS1-v15";
+        }
+
+        /// <summary>
+        ///Gets the Api keyId
+        /// </summary>
+        public string KeyId { get; set; }
+
+        /// <summary>
+        /// Gets the Key file path
+        /// </summary>
+        public string KeyFilePath { get; set; }
+
+        /// <summary>
+        /// Specify the API key in the form of a string, either configure the KeyString property or configure the KeyFilePath property.
+        /// </summary>
+        public string KeyString { get; set; }
+
+        /// <summary>
+        /// Gets the key pass phrase for password protected key
+        /// </summary>
+        public SecureString KeyPassPhrase { get; set; }
+
+        /// <summary>
+        /// Gets the HTTP signing header
+        /// </summary>
+        public List<string> HttpSigningHeader { get; set; }
+
+        /// <summary>
+        /// Gets the hash algorithm sha256 or sha512
+        /// </summary>
+        public HashAlgorithmName HashAlgorithm { get; set; }
+
+        /// <summary>
+        /// Gets the signing algorithm
+        /// </summary>
+        public string SigningAlgorithm { get; set; }
+
+        /// <summary>
+        /// Gets the Signature validity period in seconds
+        /// </summary>
+        public int SignatureValidityPeriod { get; set; }
+
+        private enum PrivateKeyType
+        {
+            None = 0,
+            RSA = 1,
+            ECDSA = 2,
+        }
+
+        /// <summary>
+        /// Gets the Headers for HttpSigning
+        /// </summary>
+        /// <param name="basePath">Base path</param>
+        /// <param name="method">HTTP method</param>
+        /// <param name="path">Path</param>
+        /// <param name="requestOptions">Request options</param>
+        /// <returns>Http signed headers</returns>
+        internal Dictionary<string, string> GetHttpSignedHeader(string basePath,string method, string path, RequestOptions requestOptions)
+        {
+            const string HEADER_REQUEST_TARGET = "(request-target)";
+            //The time when the HTTP signature expires. The API server should reject HTTP requests
+            //that have expired.
+            const string HEADER_EXPIRES = "(expires)";
+            //The 'Date' header.
+            const string HEADER_DATE = "Date";
+            //The 'Host' header.
+            const string HEADER_HOST = "Host";
+            //The time when the HTTP signature was generated.
+            const string HEADER_CREATED = "(created)";
+            //When the 'Digest' header is included in the HTTP signature, the client automatically
+            //computes the digest of the HTTP request body, per RFC 3230.
+            const string HEADER_DIGEST = "Digest";
+            //The 'Authorization' header is automatically generated by the client. It includes
+            //the list of signed headers and a base64-encoded signature.
+            const string HEADER_AUTHORIZATION = "Authorization";
+
+            //Read the api key from the file
+            if(string.IsNullOrEmpty(this.KeyString))
+            {
+                this.KeyString = ReadApiKeyFromFile(KeyFilePath);
+            }
+
+            if(string.IsNullOrEmpty(KeyString))
+            {
+                throw new Exception("No API key has been provided.");
+            }
+
+            //Hash table to store singed headers
+            var HttpSignedRequestHeader = new Dictionary<string, string>();
+            var HttpSignatureHeader = new Dictionary<string, string>();
+
+            if (HttpSigningHeader.Count == 0)
+            {
+                HttpSigningHeader.Add("(created)");
+            }
+
+            if (requestOptions.PathParameters != null)
+            {
+                foreach (var pathParam in requestOptions.PathParameters)
+                {
+                    var tempPath = path.Replace(pathParam.Key, "0");
+                    path = string.Format(tempPath, pathParam.Value);
+                }
+            }
+
+            var httpValues = HttpUtility.ParseQueryString(string.Empty);
+            foreach (var parameter in requestOptions.QueryParameters)
+            {
+#if (NETCOREAPP)
+                if (parameter.Value.Count > 1)
+                { // array
+                    foreach (var value in parameter.Value)
+                    {
+                        httpValues.Add(HttpUtility.UrlEncode(parameter.Key) + "[]", value);
+                    }
+                }
+                else
+                {
+                    httpValues.Add(HttpUtility.UrlEncode(parameter.Key), parameter.Value[0]);
+                }
+#else
+                if (parameter.Value.Count > 1)
+                { // array
+                    foreach (var value in parameter.Value)
+                    {
+                        httpValues.Add(parameter.Key + "[]", value);
+                    }
+                }
+                else
+                {
+                    httpValues.Add(parameter.Key, parameter.Value[0]);
+                }
+#endif
+            }
+            var uriBuilder = new UriBuilder(string.Concat(basePath, path));
+            uriBuilder.Query = httpValues.ToString().Replace("+", "%20");
+
+            var dateTime = DateTime.Now;
+            string Digest = string.Empty;
+
+            //get the body
+            string requestBody = string.Empty;
+            if (requestOptions.Data != null)
+            {
+                var serializerSettings = new JsonSerializerSettings();
+                requestBody = JsonConvert.SerializeObject(requestOptions.Data, serializerSettings);
+            }
+
+            if (HashAlgorithm == HashAlgorithmName.SHA256)
+            {
+                var bodyDigest = GetStringHash(HashAlgorithm, requestBody);
+                Digest = string.Format("SHA-256={0}", Convert.ToBase64String(bodyDigest));
+            }
+            else if (HashAlgorithm == HashAlgorithmName.SHA512)
+            {
+                var bodyDigest = GetStringHash(HashAlgorithm, requestBody);
+                Digest = string.Format("SHA-512={0}", Convert.ToBase64String(bodyDigest));
+            }
+            else
+            {
+                throw new Exception(string.Format("{0} not supported", HashAlgorithm));
+            }
+
+            foreach (var header in HttpSigningHeader)
+            {
+                if (header.Equals(HEADER_REQUEST_TARGET))
+                {
+                    var targetUrl = string.Format("{0} {1}{2}", method.ToLower(), uriBuilder.Path, uriBuilder.Query);
+                    HttpSignatureHeader.Add(header.ToLower(), targetUrl);
+                }
+                else if (header.Equals(HEADER_EXPIRES))
+                {
+                    var expireDateTime = dateTime.AddSeconds(SignatureValidityPeriod);
+                    HttpSignatureHeader.Add(header.ToLower(), GetUnixTime(expireDateTime).ToString());
+                }
+                else if (header.Equals(HEADER_DATE))
+                {
+                    var utcDateTime = dateTime.ToUniversalTime().ToString("r");
+                    HttpSignatureHeader.Add(header.ToLower(), utcDateTime);
+                    HttpSignedRequestHeader.Add(HEADER_DATE, utcDateTime);
+                }
+                else if (header.Equals(HEADER_HOST))
+                {
+                    HttpSignatureHeader.Add(header.ToLower(), uriBuilder.Host);
+                    HttpSignedRequestHeader.Add(HEADER_HOST, uriBuilder.Host);
+                }
+                else if (header.Equals(HEADER_CREATED))
+                {
+                    HttpSignatureHeader.Add(header.ToLower(), GetUnixTime(dateTime).ToString());
+                }
+                else if (header.Equals(HEADER_DIGEST))
+                {
+                    HttpSignedRequestHeader.Add(HEADER_DIGEST, Digest);
+                    HttpSignatureHeader.Add(header.ToLower(), Digest);
+                }
+                else
+                {
+                    bool isHeaderFound = false;
+                    foreach (var item in requestOptions.HeaderParameters)
+                    {
+                        if (string.Equals(item.Key, header, StringComparison.OrdinalIgnoreCase))
+                        {
+                            HttpSignatureHeader.Add(header.ToLower(), item.Value.ToString());
+                            isHeaderFound = true;
+                            break;
+                        }
+                    }
+                    if (!isHeaderFound)
+                    {
+                        throw new Exception(string.Format("Cannot sign HTTP request.Request does not contain the {0} header.",header));
+                    }
+                }
+
+            }
+            var headersKeysString = string.Join(" ", HttpSignatureHeader.Keys);
+            var headerValuesList = new List<string>();
+
+            foreach (var keyVal in HttpSignatureHeader)
+            {
+                headerValuesList.Add(string.Format("{0}: {1}", keyVal.Key, keyVal.Value));
+            }
+            //Concatenate headers value separated by new line
+            var headerValuesString = string.Join("\n", headerValuesList);
+            var signatureStringHash = GetStringHash(HashAlgorithm, headerValuesString);
+            string headerSignatureStr = null;
+            var keyType = GetKeyType(KeyString);
+
+            if (keyType == PrivateKeyType.RSA)
+            {
+                headerSignatureStr = GetRSASignature(signatureStringHash);
+            }
+            else if (keyType == PrivateKeyType.ECDSA)
+            {
+                headerSignatureStr = GetECDSASignature(signatureStringHash);
+            }
+            else
+            {
+                throw new Exception(string.Format("Private key type {0} not supported", keyType));
+            }
+            const string cryptographicScheme = "hs2019";
+            var authorizationHeaderValue = string.Format("Signature keyId=\"{0}\",algorithm=\"{1}\"",
+                KeyId, cryptographicScheme);
+
+            if (HttpSignatureHeader.ContainsKey(HEADER_CREATED))
+            {
+                authorizationHeaderValue += string.Format(",created={0}", HttpSignatureHeader[HEADER_CREATED]);
+            }
+
+            if (HttpSignatureHeader.ContainsKey(HEADER_EXPIRES))
+            {
+                authorizationHeaderValue += string.Format(",expires={0}", HttpSignatureHeader[HEADER_EXPIRES]);
+            }
+
+            authorizationHeaderValue += string.Format(",headers=\"{0}\",signature=\"{1}\"",
+                headersKeysString, headerSignatureStr);
+            HttpSignedRequestHeader.Add(HEADER_AUTHORIZATION, authorizationHeaderValue);
+            return HttpSignedRequestHeader;
+        }
+
+        private byte[] GetStringHash(HashAlgorithmName hashAlgorithmName, string stringToBeHashed)
+        {
+            HashAlgorithm? hashAlgorithm = null;
+
+            if (hashAlgorithmName == HashAlgorithmName.SHA1)
+                hashAlgorithm = SHA1.Create();
+
+            if (hashAlgorithmName == HashAlgorithmName.SHA256)
+                hashAlgorithm = SHA256.Create();
+
+            if (hashAlgorithmName == HashAlgorithmName.SHA512)
+                hashAlgorithm = SHA512.Create();
+
+            if (hashAlgorithmName == HashAlgorithmName.MD5)
+                hashAlgorithm = MD5.Create();
+
+            if (hashAlgorithm == null)
+                throw new NullReferenceException($"{ nameof(hashAlgorithm) } was null.");
+
+            byte[] bytes = Encoding.UTF8.GetBytes(stringToBeHashed);
+            byte[] stringHash = hashAlgorithm.ComputeHash(bytes);
+            return stringHash;
+        }
+
+        private int GetUnixTime(DateTime date2)
+        {
+            DateTime date1 = new DateTime(1970, 01, 01);
+            TimeSpan timeSpan = date2 - date1;
+            return (int)timeSpan.TotalSeconds;
+        }
+
+        private string GetRSASignature(byte[] stringToSign)
+        {
+            RSA rsa = GetRSAProviderFromPemFile(KeyString, KeyPassPhrase);
+            if (SigningAlgorithm == "RSASSA-PSS")
+            {
+                var signedbytes = rsa.SignHash(stringToSign, HashAlgorithm, RSASignaturePadding.Pss);
+                return Convert.ToBase64String(signedbytes);
+            }
+            else if (SigningAlgorithm == "PKCS1-v15")
+            {
+                var signedbytes = rsa.SignHash(stringToSign, HashAlgorithm, RSASignaturePadding.Pkcs1);
+                return Convert.ToBase64String(signedbytes);
+            }
+            else
+            {
+                return string.Empty;
+            }
+        }
+
+        /// <summary>
+        /// Gets the ECDSA signature
+        /// </summary>
+        /// <param name="dataToSign"></param>
+        /// <returns>ECDSA signature</returns>
+        private string GetECDSASignature(byte[] dataToSign)
+        {
+            if (!File.Exists(KeyFilePath))
+                throw new Exception("key file path does not exist.");
+
+            var keyStr = KeyString;
+            const string ecKeyHeader = "-----BEGIN EC PRIVATE KEY-----";
+            const string ecKeyFooter = "-----END EC PRIVATE KEY-----";
+            var ecKeyBase64String = keyStr.Replace(ecKeyHeader, "").Replace(ecKeyFooter, "").Trim();
+            var keyBytes = System.Convert.FromBase64String(ecKeyBase64String);
+            var ecdsa = ECDsa.Create();
+
+            var byteCount = 0;
+            if (KeyPassPhrase != null)
+            {
+                IntPtr unmanagedString = IntPtr.Zero;
+                try
+                {
+                    // convert secure string to byte array
+                    unmanagedString = Marshal.SecureStringToGlobalAllocUnicode(KeyPassPhrase);
+                    ecdsa.ImportEncryptedPkcs8PrivateKey(Encoding.UTF8.GetBytes(Marshal.PtrToStringUni(unmanagedString)), keyBytes, out byteCount);
+                }
+                finally
+                {
+                    if (unmanagedString != IntPtr.Zero)
+                    {
+                        Marshal.ZeroFreeBSTR(unmanagedString);
+                    }
+                }
+            }
+            else
+                ecdsa.ImportPkcs8PrivateKey(keyBytes, out byteCount);
+
+            var derBytes = ecdsa.SignHash(dataToSign, DSASignatureFormat.Rfc3279DerSequence);
+            var signedString = System.Convert.ToBase64String(derBytes);
+
+            return signedString;
+        }
+
+        /// <summary>
+        /// Convert ANS1 format to DER format. Not recommended to use because it generate inavlid signature occationally.
+        /// </summary>
+        /// <param name="signedBytes"></param>
+        /// <returns></returns>
+        private byte[] ConvertToECDSAANS1Format(byte[] signedBytes)
+        {
+            var derBytes = new List<byte>();
+            byte derLength = 68; //default length for ECDSA code signing bit 0x44
+            byte rbytesLength = 32; //R length 0x20
+            byte sbytesLength = 32; //S length 0x20
+            var rBytes = new List<byte>();
+            var sBytes = new List<byte>();
+            for (int i = 0; i < 32; i++)
+            {
+                rBytes.Add(signedBytes[i]);
+            }
+            for (int i = 32; i < 64; i++)
+            {
+                sBytes.Add(signedBytes[i]);
+            }
+
+            if (rBytes[0] > 0x7F)
+            {
+                derLength++;
+                rbytesLength++;
+                var tempBytes = new List<byte>();
+                tempBytes.AddRange(rBytes);
+                rBytes.Clear();
+                rBytes.Add(0x00);
+                rBytes.AddRange(tempBytes);
+            }
+
+            if (sBytes[0] > 0x7F)
+            {
+                derLength++;
+                sbytesLength++;
+                var tempBytes = new List<byte>();
+                tempBytes.AddRange(sBytes);
+                sBytes.Clear();
+                sBytes.Add(0x00);
+                sBytes.AddRange(tempBytes);
+
+            }
+
+            derBytes.Add(48);  //start of the sequence 0x30
+            derBytes.Add(derLength);  //total length r length, type and r bytes
+
+            derBytes.Add(2); //tag for integer
+            derBytes.Add(rbytesLength); //length of r
+            derBytes.AddRange(rBytes);
+
+            derBytes.Add(2); //tag for integer
+            derBytes.Add(sbytesLength); //length of s
+            derBytes.AddRange(sBytes);
+            return derBytes.ToArray();
+        }
+
+        private  RSACryptoServiceProvider GetRSAProviderFromPemFile(string keyString, SecureString keyPassPhrase = null)
+        {
+            const string pempubheader = "-----BEGIN PUBLIC KEY-----";
+            const string pempubfooter = "-----END PUBLIC KEY-----";
+            bool isPrivateKeyFile = true;
+            byte[] pemkey = null;
+            string pemstr = keyString;
+
+            if (pemstr.StartsWith(pempubheader) && pemstr.EndsWith(pempubfooter))
+            {
+                isPrivateKeyFile = false;
+            }
+
+            if (isPrivateKeyFile)
+            {
+                pemkey = ConvertPrivateKeyToBytes(pemstr, keyPassPhrase);
+                if (pemkey == null)
+                {
+                    return null;
+                }
+                return DecodeRSAPrivateKey(pemkey);
+            }
+            return null;
+        }
+
+        private byte[] ConvertPrivateKeyToBytes(string instr, SecureString keyPassPhrase = null)
+        {
+            const string pemprivheader = "-----BEGIN RSA PRIVATE KEY-----";
+            const string pemprivfooter = "-----END RSA PRIVATE KEY-----";
+            string pemstr = instr.Trim();
+            byte[] binkey;
+
+            if (!pemstr.StartsWith(pemprivheader) || !pemstr.EndsWith(pemprivfooter))
+            {
+                return null;
+            }
+
+            StringBuilder sb = new StringBuilder(pemstr);
+            sb.Replace(pemprivheader, "");
+            sb.Replace(pemprivfooter, "");
+            string pvkstr = sb.ToString().Trim();
+
+            try
+            {   // if there are no PEM encryption info lines, this is an UNencrypted PEM private key
+                binkey = Convert.FromBase64String(pvkstr);
+                return binkey;
+            }
+            catch (System.FormatException)
+            {
+                StringReader str = new StringReader(pvkstr);
+
+                //-------- read PEM encryption info. lines and extract salt -----
+                if (!str.ReadLine().StartsWith("Proc-Type: 4,ENCRYPTED"))
+                {
+                    return null;
+                }
+                string saltline = str.ReadLine();
+                if (!saltline.StartsWith("DEK-Info: DES-EDE3-CBC,"))
+                {
+                    return null;
+                }
+                string saltstr = saltline.Substring(saltline.IndexOf(",") + 1).Trim();
+                byte[] salt = new byte[saltstr.Length / 2];
+                for (int i = 0; i < salt.Length; i++)
+                    salt[i] = Convert.ToByte(saltstr.Substring(i * 2, 2), 16);
+                if (str.ReadLine() != "")
+                {
+                    return null;
+                }
+
+                //------ remaining b64 data is encrypted RSA key ----
+                string encryptedstr = str.ReadToEnd();
+
+                try
+                {   //should have b64 encrypted RSA key now
+                    binkey = Convert.FromBase64String(encryptedstr);
+                }
+                catch (System.FormatException)
+                {   //data is not in base64 format
+                    return null;
+                }
+
+                byte[] deskey = GetEncryptedKey(salt, keyPassPhrase, 1, 2);    // count=1 (for OpenSSL implementation); 2 iterations to get at least 24 bytes
+                if (deskey == null)
+                {
+                    return null;
+                }
+
+                //------ Decrypt the encrypted 3des-encrypted RSA private key ------
+                byte[] rsakey = DecryptKey(binkey, deskey, salt); //OpenSSL uses salt value in PEM header also as 3DES IV
+                return rsakey;
+            }
+        }
+
+        private RSACryptoServiceProvider DecodeRSAPrivateKey(byte[] privkey)
+        {
+            byte[] bytesModulus, bytesE, bytesD, bytesP, bytesQ, bytesDP, bytesDQ, bytesIQ;
+
+            // ---------  Set up stream to decode the asn.1 encoded RSA private key  ------
+            MemoryStream mem = new MemoryStream(privkey);
+            BinaryReader binr = new BinaryReader(mem);    //wrap Memory Stream with BinaryReader for easy reading
+            byte bt = 0;
+            ushort twobytes = 0;
+            int elems = 0;
+            try
+            {
+                twobytes = binr.ReadUInt16();
+                if (twobytes == 0x8130) //data read as little endian order (actual data order for Sequence is 30 81)
+                {
+                    binr.ReadByte();    //advance 1 byte
+                }
+                else if (twobytes == 0x8230)
+                {
+                    binr.ReadInt16();   //advance 2 bytes
+                }
+                else
+                {
+                    return null;
+                }
+
+                twobytes = binr.ReadUInt16();
+                if (twobytes != 0x0102) //version number
+                {
+                    return null;
+                }
+                bt = binr.ReadByte();
+                if (bt != 0x00)
+                {
+                    return null;
+                }
+
+                //------  all private key components are Integer sequences ----
+                elems = GetIntegerSize(binr);
+                bytesModulus = binr.ReadBytes(elems);
+
+                elems = GetIntegerSize(binr);
+                bytesE = binr.ReadBytes(elems);
+
+                elems = GetIntegerSize(binr);
+                bytesD = binr.ReadBytes(elems);
+
+                elems = GetIntegerSize(binr);
+                bytesP = binr.ReadBytes(elems);
+
+                elems = GetIntegerSize(binr);
+                bytesQ = binr.ReadBytes(elems);
+
+                elems = GetIntegerSize(binr);
+                bytesDP = binr.ReadBytes(elems);
+
+                elems = GetIntegerSize(binr);
+                bytesDQ = binr.ReadBytes(elems);
+
+                elems = GetIntegerSize(binr);
+                bytesIQ = binr.ReadBytes(elems);
+
+                // ------- create RSACryptoServiceProvider instance and initialize with public key -----
+                RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
+                RSAParameters RSAparams = new RSAParameters();
+                RSAparams.Modulus = bytesModulus;
+                RSAparams.Exponent = bytesE;
+                RSAparams.D = bytesD;
+                RSAparams.P = bytesP;
+                RSAparams.Q = bytesQ;
+                RSAparams.DP = bytesDP;
+                RSAparams.DQ = bytesDQ;
+                RSAparams.InverseQ = bytesIQ;
+                RSA.ImportParameters(RSAparams);
+                return RSA;
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+            finally
+            {
+                binr.Close();
+            }
+        }
+
+        private int GetIntegerSize(BinaryReader binr)
+        {
+            byte bt = 0;
+            byte lowbyte = 0x00;
+            byte highbyte = 0x00;
+            int count = 0;
+            bt = binr.ReadByte();
+            if (bt != 0x02) //expect integer
+            {
+                return 0;
+            }
+            bt = binr.ReadByte();
+
+            if (bt == 0x81)
+            {
+                count = binr.ReadByte();    // data size in next byte
+            }
+            else if (bt == 0x82)
+            {
+                highbyte = binr.ReadByte(); // data size in next 2 bytes
+                lowbyte = binr.ReadByte();
+                byte[] modint = { lowbyte, highbyte, 0x00, 0x00 };
+                count = BitConverter.ToInt32(modint, 0);
+            }
+            else
+            {
+                count = bt;     // we already have the data size
+            }
+            while (binr.ReadByte() == 0x00)
+            {
+                //remove high order zeros in data
+                count -= 1;
+            }
+            binr.BaseStream.Seek(-1, SeekOrigin.Current);
+            //last ReadByte wasn't a removed zero, so back up a byte
+            return count;
+        }
+
+        private byte[] GetEncryptedKey(byte[] salt, SecureString secpswd, int count, int miter)
+        {
+            IntPtr unmanagedPswd = IntPtr.Zero;
+            const int HASHLENGTH = 16;    //MD5 bytes
+            byte[] keymaterial = new byte[HASHLENGTH * miter];     //to store concatenated Mi hashed results
+
+            byte[] psbytes = new byte[secpswd.Length];
+            unmanagedPswd = Marshal.SecureStringToGlobalAllocAnsi(secpswd);
+            Marshal.Copy(unmanagedPswd, psbytes, 0, psbytes.Length);
+            Marshal.ZeroFreeGlobalAllocAnsi(unmanagedPswd);
+
+            // --- concatenate salt and pswd bytes into fixed data array ---
+            byte[] data00 = new byte[psbytes.Length + salt.Length];
+            Array.Copy(psbytes, data00, psbytes.Length);      //copy the pswd bytes
+            Array.Copy(salt, 0, data00, psbytes.Length, salt.Length); //concatenate the salt bytes
+
+            // ---- do multi-hashing and concatenate results  D1, D2 ...  into keymaterial bytes ----
+            MD5 md5 = MD5.Create();
+            byte[] result = null;
+            byte[] hashtarget = new byte[HASHLENGTH + data00.Length];   //fixed length initial hashtarget
+
+            for (int j = 0; j < miter; j++)
+            {
+                // ----  Now hash consecutively for count times ------
+                if (j == 0)
+                {
+                    result = data00;    //initialize
+                }
+                else
+                {
+                    Array.Copy(result, hashtarget, result.Length);
+                    Array.Copy(data00, 0, hashtarget, result.Length, data00.Length);
+                    result = hashtarget;
+                }
+
+                for (int i = 0; i < count; i++)
+                {
+                    result = md5.ComputeHash(result);
+                }
+                Array.Copy(result, 0, keymaterial, j * HASHLENGTH, result.Length);  //concatenate to keymaterial
+            }
+            byte[] deskey = new byte[24];
+            Array.Copy(keymaterial, deskey, deskey.Length);
+
+            Array.Clear(psbytes, 0, psbytes.Length);
+            Array.Clear(data00, 0, data00.Length);
+            Array.Clear(result, 0, result.Length);
+            Array.Clear(hashtarget, 0, hashtarget.Length);
+            Array.Clear(keymaterial, 0, keymaterial.Length);
+            return deskey;
+        }
+
+        private byte[] DecryptKey(byte[] cipherData, byte[] desKey, byte[] IV)
+        {
+            MemoryStream memst = new MemoryStream();
+            TripleDES alg = TripleDES.Create();
+            alg.Key = desKey;
+            alg.IV = IV;
+            try
+            {
+                CryptoStream cs = new CryptoStream(memst, alg.CreateDecryptor(), CryptoStreamMode.Write);
+                cs.Write(cipherData, 0, cipherData.Length);
+                cs.Close();
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+            byte[] decryptedData = memst.ToArray();
+            return decryptedData;
+        }
+
+        /// <summary>
+        /// Detect the key type from the pem file.
+        /// </summary>
+        /// <param name="keyString">api key in string format</param>
+        /// <returns>Private Key Type</returns>
+        private PrivateKeyType GetKeyType(string keyString)
+        {
+            string[] key = null;
+
+            if (string.IsNullOrEmpty(keyString))
+            {
+                throw new Exception("No API key has been provided.");
+            }
+
+            const string ecPrivateKeyHeader = "BEGIN EC PRIVATE KEY";
+            const string ecPrivateKeyFooter = "END EC PRIVATE KEY";
+            const string rsaPrivateKeyHeader = "BEGIN RSA PRIVATE KEY";
+            const string rsaPrivateFooter = "END RSA PRIVATE KEY";
+            //var pkcs8Header = "BEGIN PRIVATE KEY";
+            //var pkcs8Footer = "END PRIVATE KEY";
+            PrivateKeyType keyType;
+            key = KeyString.TrimEnd().Split('\n');
+
+            if (key[0].Contains(rsaPrivateKeyHeader) &&
+                key[key.Length - 1].ToString().Contains(rsaPrivateFooter))
+            {
+                keyType = PrivateKeyType.RSA;
+            }
+            else if (key[0].Contains(ecPrivateKeyHeader) &&
+                key[key.Length - 1].ToString().Contains(ecPrivateKeyFooter))
+            {
+                keyType = PrivateKeyType.ECDSA;
+            }
+            else
+            {
+                throw new Exception("The key file path does not exist or key is invalid or key is not supported");
+            }
+            return keyType;
+        }
+
+        /// <summary>
+        /// Read the api key form the api key file path and stored it in KeyString property.
+        /// </summary>
+        /// <param name="apiKeyFilePath">api key file path</param>
+        private string ReadApiKeyFromFile(string apiKeyFilePath)
+        {
+            string apiKeyString = null;
+            
+            if(File.Exists(apiKeyFilePath))
+            {
+                apiKeyString = File.ReadAllText(apiKeyFilePath);
+            }
+            else
+            {
+                throw new Exception("Provided API key file path does not exists.");
+            }
+            return apiKeyString;
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IApiAccessor.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IApiAccessor.cs
new file mode 100644
index 00000000000..2bd76416004
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IApiAccessor.cs
@@ -0,0 +1,37 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Represents configuration aspects required to interact with the API endpoints.
+    /// </summary>
+    public interface IApiAccessor
+    {
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        string GetBasePath();
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        ExceptionFactory ExceptionFactory { get; set; }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IAsynchronousClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IAsynchronousClient.cs
new file mode 100644
index 00000000000..601e86d561c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IAsynchronousClient.cs
@@ -0,0 +1,100 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Threading.Tasks;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Contract for Asynchronous RESTful API interactions.
+    ///
+    /// This interface allows consumers to provide a custom API accessor client.
+    /// </summary>
+    public interface IAsynchronousClient
+    {
+        /// <summary>
+        /// Executes a non-blocking call to some <paramref name="path"/> using the GET http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>A task eventually representing the response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        Task<ApiResponse<T>> GetAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Executes a non-blocking call to some <paramref name="path"/> using the POST http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>A task eventually representing the response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        Task<ApiResponse<T>> PostAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Executes a non-blocking call to some <paramref name="path"/> using the PUT http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>A task eventually representing the response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        Task<ApiResponse<T>> PutAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Executes a non-blocking call to some <paramref name="path"/> using the DELETE http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>A task eventually representing the response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        Task<ApiResponse<T>> DeleteAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Executes a non-blocking call to some <paramref name="path"/> using the HEAD http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>A task eventually representing the response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        Task<ApiResponse<T>> HeadAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Executes a non-blocking call to some <paramref name="path"/> using the OPTIONS http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>A task eventually representing the response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        Task<ApiResponse<T>> OptionsAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+
+        /// <summary>
+        /// Executes a non-blocking call to some <paramref name="path"/> using the PATCH http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <param name="cancellationToken">Cancellation Token to cancel the request.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>A task eventually representing the response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        Task<ApiResponse<T>> PatchAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IReadableConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IReadableConfiguration.cs
new file mode 100644
index 00000000000..90ec4a6f193
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/IReadableConfiguration.cs
@@ -0,0 +1,171 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Net.Security;
+using System.Security.Cryptography.X509Certificates;
+using Org.OpenAPITools.Client.Auth;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Represents a readable-only configuration contract.
+    /// </summary>
+    public interface IReadableConfiguration
+    {
+        /// <summary>
+        /// Gets the access token.
+        /// </summary>
+        /// <value>Access token.</value>
+        string AccessToken { get; }
+
+        /// <summary>
+        /// Gets the OAuth token URL.
+        /// </summary>
+        /// <value>OAuth Token URL.</value>
+        string OAuthTokenUrl { get; }
+
+        /// <summary>
+        /// Gets the OAuth client ID.
+        /// </summary>
+        /// <value>OAuth Client ID.</value>
+        string OAuthClientId { get; }
+
+        /// <summary>
+        /// Gets the OAuth client secret.
+        /// </summary>
+        /// <value>OAuth Client Secret.</value>
+        string OAuthClientSecret { get; }
+
+        /// <summary>
+        /// Gets the OAuth flow.
+        /// </summary>
+        /// <value>OAuth Flow.</value>
+        OAuthFlow? OAuthFlow { get; }
+
+        /// <summary>
+        /// Gets the API key.
+        /// </summary>
+        /// <value>API key.</value>
+        IDictionary<string, string> ApiKey { get; }
+
+        /// <summary>
+        /// Gets the API key prefix.
+        /// </summary>
+        /// <value>API key prefix.</value>
+        IDictionary<string, string> ApiKeyPrefix { get; }
+
+        /// <summary>
+        /// Gets the base path.
+        /// </summary>
+        /// <value>Base path.</value>
+        string BasePath { get; }
+
+        /// <summary>
+        /// Gets the date time format.
+        /// </summary>
+        /// <value>Date time format.</value>
+        string DateTimeFormat { get; }
+
+        /// <summary>
+        /// Gets the default header.
+        /// </summary>
+        /// <value>Default header.</value>
+        [Obsolete("Use DefaultHeaders instead.")]
+        IDictionary<string, string> DefaultHeader { get; }
+
+        /// <summary>
+        /// Gets the default headers.
+        /// </summary>
+        /// <value>Default headers.</value>
+        IDictionary<string, string> DefaultHeaders { get; }
+
+        /// <summary>
+        /// Gets the temp folder path.
+        /// </summary>
+        /// <value>Temp folder path.</value>
+        string TempFolderPath { get; }
+
+        /// <summary>
+        /// Gets the HTTP connection timeout (in milliseconds)
+        /// </summary>
+        /// <value>HTTP connection timeout.</value>
+        int Timeout { get; }
+
+        /// <summary>
+        /// Gets the proxy.
+        /// </summary>
+        /// <value>Proxy.</value>
+        WebProxy Proxy { get; }
+
+        /// <summary>
+        /// Gets the user agent.
+        /// </summary>
+        /// <value>User agent.</value>
+        string UserAgent { get; }
+
+        /// <summary>
+        /// Gets the username.
+        /// </summary>
+        /// <value>Username.</value>
+        string Username { get; }
+
+        /// <summary>
+        /// Gets the password.
+        /// </summary>
+        /// <value>Password.</value>
+        string Password { get; }
+
+        /// <summary>
+        /// Determine whether or not the "default credentials" (e.g. the user account under which the current process is running) will be sent along to the server. The default is false.
+        /// </summary>
+        bool UseDefaultCredentials { get; }
+
+        /// <summary>
+        /// Get the servers associated with the operation.
+        /// </summary>
+        /// <value>Operation servers.</value>
+        IReadOnlyDictionary<string, List<IReadOnlyDictionary<string, object>>> OperationServers { get; }
+
+        /// <summary>
+        /// Gets the API key with prefix.
+        /// </summary>
+        /// <param name="apiKeyIdentifier">API key identifier (authentication scheme).</param>
+        /// <returns>API key with prefix.</returns>
+        string GetApiKeyWithPrefix(string apiKeyIdentifier);
+
+        /// <summary>
+        /// Gets the Operation server url at the provided index.
+        /// </summary>
+        /// <param name="operation">Operation server name.</param>
+        /// <param name="index">Index of the operation server settings.</param>
+        /// <returns></returns>
+        string GetOperationServerUrl(string operation, int index);
+
+        /// <summary>
+        /// Gets certificate collection to be sent with requests.
+        /// </summary>
+        /// <value>X509 Certificate collection.</value>
+        X509CertificateCollection ClientCertificates { get; }
+
+        /// <summary>
+        /// Gets the HttpSigning configuration
+        /// </summary>
+        HttpSigningConfiguration HttpSigningConfiguration { get; }
+
+        /// <summary>
+        /// Callback function for handling the validation of remote certificates. Useful for certificate pinning and
+        /// overriding certificate errors in the scope of a request.
+        /// </summary>
+        RemoteCertificateValidationCallback RemoteCertificateValidationCallback { get; }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ISynchronousClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ISynchronousClient.cs
new file mode 100644
index 00000000000..0e0a7fedacf
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/ISynchronousClient.cs
@@ -0,0 +1,93 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.IO;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Contract for Synchronous RESTful API interactions.
+    ///
+    /// This interface allows consumers to provide a custom API accessor client.
+    /// </summary>
+    public interface ISynchronousClient
+    {
+        /// <summary>
+        /// Executes a blocking call to some <paramref name="path"/> using the GET http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>The response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        ApiResponse<T> Get<T>(string path, RequestOptions options, IReadableConfiguration configuration = null);
+
+        /// <summary>
+        /// Executes a blocking call to some <paramref name="path"/> using the POST http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>The response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        ApiResponse<T> Post<T>(string path, RequestOptions options, IReadableConfiguration configuration = null);
+
+        /// <summary>
+        /// Executes a blocking call to some <paramref name="path"/> using the PUT http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>The response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        ApiResponse<T> Put<T>(string path, RequestOptions options, IReadableConfiguration configuration = null);
+
+        /// <summary>
+        /// Executes a blocking call to some <paramref name="path"/> using the DELETE http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>The response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        ApiResponse<T> Delete<T>(string path, RequestOptions options, IReadableConfiguration configuration = null);
+
+        /// <summary>
+        /// Executes a blocking call to some <paramref name="path"/> using the HEAD http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>The response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        ApiResponse<T> Head<T>(string path, RequestOptions options, IReadableConfiguration configuration = null);
+
+        /// <summary>
+        /// Executes a blocking call to some <paramref name="path"/> using the OPTIONS http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>The response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        ApiResponse<T> Options<T>(string path, RequestOptions options, IReadableConfiguration configuration = null);
+
+        /// <summary>
+        /// Executes a blocking call to some <paramref name="path"/> using the PATCH http verb.
+        /// </summary>
+        /// <param name="path">The relative path to invoke.</param>
+        /// <param name="options">The request parameters to pass along to the client.</param>
+        /// <param name="configuration">Per-request configurable settings.</param>
+        /// <typeparam name="T">The return type.</typeparam>
+        /// <returns>The response data, decorated with <see cref="ApiResponse{T}"/></returns>
+        ApiResponse<T> Patch<T>(string path, RequestOptions options, IReadableConfiguration configuration = null);
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Multimap.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Multimap.cs
new file mode 100644
index 00000000000..738a64c570b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/Multimap.cs
@@ -0,0 +1,295 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// A dictionary in which one key has many associated values.
+    /// </summary>
+    /// <typeparam name="TKey">The type of the key</typeparam>
+    /// <typeparam name="TValue">The type of the value associated with the key.</typeparam>
+    public class Multimap<TKey, TValue> : IDictionary<TKey, IList<TValue>>
+    {
+        #region Private Fields
+
+        private readonly Dictionary<TKey, IList<TValue>> _dictionary;
+
+        #endregion Private Fields
+
+        #region Constructors
+
+        /// <summary>
+        /// Empty Constructor.
+        /// </summary>
+        public Multimap()
+        {
+            _dictionary = new Dictionary<TKey, IList<TValue>>();
+        }
+
+        /// <summary>
+        /// Constructor with comparer.
+        /// </summary>
+        /// <param name="comparer"></param>
+        public Multimap(IEqualityComparer<TKey> comparer)
+        {
+            _dictionary = new Dictionary<TKey, IList<TValue>>(comparer);
+        }
+
+        #endregion Constructors
+
+        #region Enumerators
+
+        /// <summary>
+        /// To get the enumerator.
+        /// </summary>
+        /// <returns>Enumerator</returns>
+        public IEnumerator<KeyValuePair<TKey, IList<TValue>>> GetEnumerator()
+        {
+            return _dictionary.GetEnumerator();
+        }
+
+        /// <summary>
+        /// To get the enumerator.
+        /// </summary>
+        /// <returns>Enumerator</returns>
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return _dictionary.GetEnumerator();
+        }
+
+        #endregion Enumerators
+
+        #region Public Members
+        /// <summary>
+        /// Add values to Multimap
+        /// </summary>
+        /// <param name="item">Key value pair</param>
+        public void Add(KeyValuePair<TKey, IList<TValue>> item)
+        {
+            if (!TryAdd(item.Key, item.Value))
+                throw new InvalidOperationException("Could not add values to Multimap.");
+        }
+
+        /// <summary>
+        /// Add Multimap to Multimap
+        /// </summary>
+        /// <param name="multimap">Multimap</param>
+        public void Add(Multimap<TKey, TValue> multimap)
+        {
+            foreach (var item in multimap)
+            {
+                if (!TryAdd(item.Key, item.Value))
+                    throw new InvalidOperationException("Could not add values to Multimap.");
+            }
+        }
+
+        /// <summary>
+        /// Clear Multimap
+        /// </summary>
+        public void Clear()
+        {
+            _dictionary.Clear();
+        }
+
+        /// <summary>
+        /// Determines whether Multimap contains the specified item.
+        /// </summary>
+        /// <param name="item">Key value pair</param>
+        /// <exception cref="NotImplementedException">Method needs to be implemented</exception>
+        /// <returns>true if the Multimap contains the item; otherwise, false.</returns>
+        public bool Contains(KeyValuePair<TKey, IList<TValue>> item)
+        {
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        ///  Copy items of the Multimap to an array,
+        ///     starting at a particular array index.
+        /// </summary>
+        /// <param name="array">The array that is the destination of the items copied
+        ///     from Multimap. The array must have zero-based indexing.</param>
+        /// <param name="arrayIndex">The zero-based index in array at which copying begins.</param>
+        /// <exception cref="NotImplementedException">Method needs to be implemented</exception>
+        public void CopyTo(KeyValuePair<TKey, IList<TValue>>[] array, int arrayIndex)
+        {
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Removes the specified item from the Multimap.
+        /// </summary>
+        /// <param name="item">Key value pair</param>
+        /// <returns>true if the item is successfully removed; otherwise, false.</returns>
+        /// <exception cref="NotImplementedException">Method needs to be implemented</exception>
+        public bool Remove(KeyValuePair<TKey, IList<TValue>> item)
+        {
+            throw new NotImplementedException();
+        }
+
+        /// <summary>
+        /// Gets the number of items contained in the Multimap.
+        /// </summary>
+        public int Count => _dictionary.Count;
+
+        /// <summary>
+        /// Gets a value indicating whether the Multimap is read-only.
+        /// </summary>
+        public bool IsReadOnly => false;
+
+        /// <summary>
+        /// Adds an item with the provided key and value to the Multimap.
+        /// </summary>
+        /// <param name="key">The object to use as the key of the item to add.</param>
+        /// <param name="value">The object to use as the value of the item to add.</param>
+        /// <exception cref="InvalidOperationException">Thrown when couldn't add the value to Multimap.</exception>
+        public void Add(TKey key, IList<TValue> value)
+        {
+            if (value != null && value.Count > 0)
+            {
+                if (_dictionary.TryGetValue(key, out var list))
+                {
+                    foreach (var k in value) list.Add(k);
+                }
+                else
+                {
+                    list = new List<TValue>(value);
+                    if (!TryAdd(key, list))
+                        throw new InvalidOperationException("Could not add values to Multimap.");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Determines whether the Multimap contains an item with the specified key.
+        /// </summary>
+        /// <param name="key">The key to locate in the Multimap.</param>
+        /// <returns>true if the Multimap contains an item with
+        ///     the key; otherwise, false.</returns>
+        public bool ContainsKey(TKey key)
+        {
+            return _dictionary.ContainsKey(key);
+        }
+
+        /// <summary>
+        /// Removes item with the specified key from the Multimap.
+        /// </summary>
+        /// <param name="key">The key to locate in the Multimap.</param>
+        /// <returns>true if the item is successfully removed; otherwise, false.</returns>
+        public bool Remove(TKey key)
+        {
+            return TryRemove(key, out var _);
+        }
+
+        /// <summary>
+        /// Gets the value associated with the specified key.
+        /// </summary>
+        /// <param name="key">The key whose value to get.</param>
+        /// <param name="value">When this method returns, the value associated with the specified key, if the
+        ///     key is found; otherwise, the default value for the type of the value parameter.
+        ///     This parameter is passed uninitialized.</param>
+        /// <returns> true if the object that implements Multimap contains
+        ///     an item with the specified key; otherwise, false.</returns>
+        public bool TryGetValue(TKey key, out IList<TValue> value)
+        {
+            return _dictionary.TryGetValue(key, out value);
+        }
+
+        /// <summary>
+        /// Gets or sets the item with the specified key.
+        /// </summary>
+        /// <param name="key">The key of the item to get or set.</param>
+        /// <returns>The value of the specified key.</returns>
+        public IList<TValue> this[TKey key]
+        {
+            get => _dictionary[key];
+            set => _dictionary[key] = value;
+        }
+
+        /// <summary>
+        /// Gets a System.Collections.Generic.ICollection containing the keys of the Multimap.
+        /// </summary>
+        public ICollection<TKey> Keys => _dictionary.Keys;
+
+        /// <summary>
+        /// Gets a System.Collections.Generic.ICollection containing the values of the Multimap.
+        /// </summary>
+        public ICollection<IList<TValue>> Values => _dictionary.Values;
+
+        /// <summary>
+        ///  Copy the items of the Multimap to an System.Array,
+        ///     starting at a particular System.Array index.
+        /// </summary>
+        /// <param name="array">The one-dimensional System.Array that is the destination of the items copied
+        ///     from Multimap. The System.Array must have zero-based indexing.</param>
+        /// <param name="index">The zero-based index in array at which copying begins.</param>
+        public void CopyTo(Array array, int index)
+        {
+            ((ICollection)_dictionary).CopyTo(array, index);
+        }
+
+        /// <summary>
+        /// Adds an item with the provided key and value to the Multimap.
+        /// </summary>
+        /// <param name="key">The object to use as the key of the item to add.</param>
+        /// <param name="value">The object to use as the value of the item to add.</param>
+        /// <exception cref="InvalidOperationException">Thrown when couldn't add value to Multimap.</exception>
+        public void Add(TKey key, TValue value)
+        {
+            if (value != null)
+            {
+                if (_dictionary.TryGetValue(key, out var list))
+                {
+                    list.Add(value);
+                }
+                else
+                {
+                    list = new List<TValue> { value };
+                    if (!TryAdd(key, list))
+                        throw new InvalidOperationException("Could not add value to Multimap.");
+                }
+            }
+        }
+
+        #endregion Public Members
+
+        #region Private Members
+
+        /**
+         * Helper method to encapsulate generator differences between dictionary types.
+         */
+        private bool TryRemove(TKey key, out IList<TValue> value)
+        {
+            _dictionary.TryGetValue(key, out value);
+            return _dictionary.Remove(key);
+        }
+
+        /**
+         * Helper method to encapsulate generator differences between dictionary types.
+         */
+        private bool TryAdd(TKey key, IList<TValue> value)
+        {
+            try
+            {
+                _dictionary.Add(key, value);
+            }
+            catch (ArgumentException)
+            {
+                return false;
+            }
+
+            return true;
+        }
+        #endregion Private Members
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs
new file mode 100644
index 00000000000..a5253e58201
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/OpenAPIDateConverter.cs
@@ -0,0 +1,29 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using Newtonsoft.Json.Converters;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Formatter for 'date' openapi formats ss defined by full-date - RFC3339
+    /// see https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#data-types
+    /// </summary>
+    public class OpenAPIDateConverter : IsoDateTimeConverter
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="OpenAPIDateConverter" /> class.
+        /// </summary>
+        public OpenAPIDateConverter()
+        {
+            // full-date   = date-fullyear "-" date-month "-" date-mday
+            DateTimeFormat = "yyyy-MM-dd";
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/RequestOptions.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/RequestOptions.cs
new file mode 100644
index 00000000000..f5e02e93f0f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/RequestOptions.cs
@@ -0,0 +1,89 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// A container for generalized request inputs. This type allows consumers to extend the request functionality
+    /// by abstracting away from the default (built-in) request framework (e.g. RestSharp).
+    /// </summary>
+    public class RequestOptions
+    {
+        /// <summary>
+        /// Parameters to be bound to path parts of the Request's URL
+        /// </summary>
+        public Dictionary<string, string> PathParameters { get; set; }
+
+        /// <summary>
+        /// Query parameters to be applied to the request.
+        /// Keys may have 1 or more values associated.
+        /// </summary>
+        public Multimap<string, string> QueryParameters { get; set; }
+
+        /// <summary>
+        /// Header parameters to be applied to the request.
+        /// Keys may have 1 or more values associated.
+        /// </summary>
+        public Multimap<string, string> HeaderParameters { get; set; }
+
+        /// <summary>
+        /// Form parameters to be sent along with the request.
+        /// </summary>
+        public Dictionary<string, string> FormParameters { get; set; }
+
+        /// <summary>
+        /// File parameters to be sent along with the request.
+        /// </summary>
+        public Multimap<string, Stream> FileParameters { get; set; }
+
+        /// <summary>
+        /// Cookies to be sent along with the request.
+        /// </summary>
+        public List<Cookie> Cookies { get; set; }
+
+        /// <summary>
+        /// Operation associated with the request path.
+        /// </summary>
+        public string Operation { get; set; }
+
+        /// <summary>
+        /// Index associated with the operation.
+        /// </summary>
+        public int OperationIndex { get; set; }
+
+        /// <summary>
+        /// Any data associated with a request body.
+        /// </summary>
+        public Object Data { get; set; }
+
+        /// <summary>
+        /// If request should be authenticated with OAuth.
+        /// </summary>
+        public bool OAuth { get; set; }
+
+        /// <summary>
+        /// Constructs a new instance of <see cref="RequestOptions"/>
+        /// </summary>
+        public RequestOptions()
+        {
+            PathParameters = new Dictionary<string, string>();
+            QueryParameters = new Multimap<string, string>();
+            HeaderParameters = new Multimap<string, string>();
+            FormParameters = new Dictionary<string, string>();
+            FileParameters = new Multimap<string, Stream>();
+            Cookies = new List<Cookie>();
+        }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/RetryConfiguration.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/RetryConfiguration.cs
new file mode 100644
index 00000000000..7011f69e775
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Client/RetryConfiguration.cs
@@ -0,0 +1,31 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Polly;
+using RestSharp;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Configuration class to set the polly retry policies to be applied to the requests.
+    /// </summary>
+    public static class RetryConfiguration
+    {
+        /// <summary>
+        /// Retry policy
+        /// </summary>
+        public static Policy<RestResponse> RetryPolicy { get; set; }
+
+        /// <summary>
+        /// Async retry policy
+        /// </summary>
+        public static AsyncPolicy<RestResponse> AsyncRetryPolicy { get; set; }
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs
new file mode 100644
index 00000000000..b3fc4c3c7a3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AbstractOpenAPISchema.cs
@@ -0,0 +1,76 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    ///  Abstract base class for oneOf, anyOf schemas in the OpenAPI specification
+    /// </summary>
+    public abstract partial class AbstractOpenAPISchema
+    {
+        /// <summary>
+        ///  Custom JSON serializer
+        /// </summary>
+        static public readonly JsonSerializerSettings SerializerSettings = new JsonSerializerSettings
+        {
+            // OpenAPI generated types generally hide default constructors.
+            ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor,
+            MissingMemberHandling = MissingMemberHandling.Error,
+            ContractResolver = new DefaultContractResolver
+            {
+                NamingStrategy = new CamelCaseNamingStrategy
+                {
+                    OverrideSpecifiedNames = false
+                }
+            }
+        };
+
+        /// <summary>
+        ///  Custom JSON serializer for objects with additional properties
+        /// </summary>
+        static public readonly JsonSerializerSettings AdditionalPropertiesSerializerSettings = new JsonSerializerSettings
+        {
+            // OpenAPI generated types generally hide default constructors.
+            ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor,
+            MissingMemberHandling = MissingMemberHandling.Ignore,
+            ContractResolver = new DefaultContractResolver
+            {
+                NamingStrategy = new CamelCaseNamingStrategy
+                {
+                    OverrideSpecifiedNames = false
+                }
+            }
+        };
+
+        /// <summary>
+        /// Gets or Sets the actual instance
+        /// </summary>
+        public abstract Object ActualInstance { get; set; }
+
+        /// <summary>
+        /// Gets or Sets IsNullable to indicate whether the instance is nullable
+        /// </summary>
+        public bool IsNullable { get; protected set; }
+
+        /// <summary>
+        /// Gets or Sets the schema type, which can be either `oneOf` or `anyOf`
+        /// </summary>
+        public string SchemaType { get; protected set; }
+
+        /// <summary>
+        /// Converts the instance into JSON string.
+        /// </summary>
+        public abstract string ToJson();
+    }
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Activity.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Activity.cs
new file mode 100644
index 00000000000..3c5a860dd89
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Activity.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// test map of maps
+    /// </summary>
+    [DataContract(Name = "Activity")]
+    public partial class Activity : IEquatable<Activity>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Activity" /> class.
+        /// </summary>
+        /// <param name="activityOutputs">activityOutputs.</param>
+        public Activity(Dictionary<string, List<ActivityOutputElementRepresentation>> activityOutputs = default(Dictionary<string, List<ActivityOutputElementRepresentation>>))
+        {
+            this.ActivityOutputs = activityOutputs;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ActivityOutputs
+        /// </summary>
+        [DataMember(Name = "activity_outputs", EmitDefaultValue = false)]
+        public Dictionary<string, List<ActivityOutputElementRepresentation>> ActivityOutputs { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Activity {\n");
+            sb.Append("  ActivityOutputs: ").Append(ActivityOutputs).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Activity).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Activity instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Activity to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Activity input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActivityOutputs != null)
+                {
+                    hashCode = (hashCode * 59) + this.ActivityOutputs.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs
new file mode 100644
index 00000000000..0640bc68500
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ActivityOutputElementRepresentation.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ActivityOutputElementRepresentation
+    /// </summary>
+    [DataContract(Name = "ActivityOutputElementRepresentation")]
+    public partial class ActivityOutputElementRepresentation : IEquatable<ActivityOutputElementRepresentation>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ActivityOutputElementRepresentation" /> class.
+        /// </summary>
+        /// <param name="prop1">prop1.</param>
+        /// <param name="prop2">prop2.</param>
+        public ActivityOutputElementRepresentation(string prop1 = default(string), Object prop2 = default(Object))
+        {
+            this.Prop1 = prop1;
+            this.Prop2 = prop2;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Prop1
+        /// </summary>
+        [DataMember(Name = "prop1", EmitDefaultValue = false)]
+        public string Prop1 { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Prop2
+        /// </summary>
+        [DataMember(Name = "prop2", EmitDefaultValue = false)]
+        public Object Prop2 { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ActivityOutputElementRepresentation {\n");
+            sb.Append("  Prop1: ").Append(Prop1).Append("\n");
+            sb.Append("  Prop2: ").Append(Prop2).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ActivityOutputElementRepresentation).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ActivityOutputElementRepresentation instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ActivityOutputElementRepresentation to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ActivityOutputElementRepresentation input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Prop1 != null)
+                {
+                    hashCode = (hashCode * 59) + this.Prop1.GetHashCode();
+                }
+                if (this.Prop2 != null)
+                {
+                    hashCode = (hashCode * 59) + this.Prop2.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
new file mode 100644
index 00000000000..ddec6a58568
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
@@ -0,0 +1,224 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// AdditionalPropertiesClass
+    /// </summary>
+    [DataContract(Name = "AdditionalPropertiesClass")]
+    public partial class AdditionalPropertiesClass : IEquatable<AdditionalPropertiesClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AdditionalPropertiesClass" /> class.
+        /// </summary>
+        /// <param name="mapProperty">mapProperty.</param>
+        /// <param name="mapOfMapProperty">mapOfMapProperty.</param>
+        /// <param name="anytype1">anytype1.</param>
+        /// <param name="mapWithUndeclaredPropertiesAnytype1">mapWithUndeclaredPropertiesAnytype1.</param>
+        /// <param name="mapWithUndeclaredPropertiesAnytype2">mapWithUndeclaredPropertiesAnytype2.</param>
+        /// <param name="mapWithUndeclaredPropertiesAnytype3">mapWithUndeclaredPropertiesAnytype3.</param>
+        /// <param name="emptyMap">an object with no declared properties and no undeclared properties, hence it&#39;s an empty map..</param>
+        /// <param name="mapWithUndeclaredPropertiesString">mapWithUndeclaredPropertiesString.</param>
+        public AdditionalPropertiesClass(Dictionary<string, string> mapProperty = default(Dictionary<string, string>), Dictionary<string, Dictionary<string, string>> mapOfMapProperty = default(Dictionary<string, Dictionary<string, string>>), Object anytype1 = default(Object), Object mapWithUndeclaredPropertiesAnytype1 = default(Object), Object mapWithUndeclaredPropertiesAnytype2 = default(Object), Dictionary<string, Object> mapWithUndeclaredPropertiesAnytype3 = default(Dictionary<string, Object>), Object emptyMap = default(Object), Dictionary<string, string> mapWithUndeclaredPropertiesString = default(Dictionary<string, string>))
+        {
+            this.MapProperty = mapProperty;
+            this.MapOfMapProperty = mapOfMapProperty;
+            this.Anytype1 = anytype1;
+            this.MapWithUndeclaredPropertiesAnytype1 = mapWithUndeclaredPropertiesAnytype1;
+            this.MapWithUndeclaredPropertiesAnytype2 = mapWithUndeclaredPropertiesAnytype2;
+            this.MapWithUndeclaredPropertiesAnytype3 = mapWithUndeclaredPropertiesAnytype3;
+            this.EmptyMap = emptyMap;
+            this.MapWithUndeclaredPropertiesString = mapWithUndeclaredPropertiesString;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets MapProperty
+        /// </summary>
+        [DataMember(Name = "map_property", EmitDefaultValue = false)]
+        public Dictionary<string, string> MapProperty { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MapOfMapProperty
+        /// </summary>
+        [DataMember(Name = "map_of_map_property", EmitDefaultValue = false)]
+        public Dictionary<string, Dictionary<string, string>> MapOfMapProperty { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Anytype1
+        /// </summary>
+        [DataMember(Name = "anytype_1", EmitDefaultValue = true)]
+        public Object Anytype1 { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MapWithUndeclaredPropertiesAnytype1
+        /// </summary>
+        [DataMember(Name = "map_with_undeclared_properties_anytype_1", EmitDefaultValue = false)]
+        public Object MapWithUndeclaredPropertiesAnytype1 { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MapWithUndeclaredPropertiesAnytype2
+        /// </summary>
+        [DataMember(Name = "map_with_undeclared_properties_anytype_2", EmitDefaultValue = false)]
+        public Object MapWithUndeclaredPropertiesAnytype2 { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MapWithUndeclaredPropertiesAnytype3
+        /// </summary>
+        [DataMember(Name = "map_with_undeclared_properties_anytype_3", EmitDefaultValue = false)]
+        public Dictionary<string, Object> MapWithUndeclaredPropertiesAnytype3 { get; set; }
+
+        /// <summary>
+        /// an object with no declared properties and no undeclared properties, hence it&#39;s an empty map.
+        /// </summary>
+        /// <value>an object with no declared properties and no undeclared properties, hence it&#39;s an empty map.</value>
+        [DataMember(Name = "empty_map", EmitDefaultValue = false)]
+        public Object EmptyMap { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MapWithUndeclaredPropertiesString
+        /// </summary>
+        [DataMember(Name = "map_with_undeclared_properties_string", EmitDefaultValue = false)]
+        public Dictionary<string, string> MapWithUndeclaredPropertiesString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class AdditionalPropertiesClass {\n");
+            sb.Append("  MapProperty: ").Append(MapProperty).Append("\n");
+            sb.Append("  MapOfMapProperty: ").Append(MapOfMapProperty).Append("\n");
+            sb.Append("  Anytype1: ").Append(Anytype1).Append("\n");
+            sb.Append("  MapWithUndeclaredPropertiesAnytype1: ").Append(MapWithUndeclaredPropertiesAnytype1).Append("\n");
+            sb.Append("  MapWithUndeclaredPropertiesAnytype2: ").Append(MapWithUndeclaredPropertiesAnytype2).Append("\n");
+            sb.Append("  MapWithUndeclaredPropertiesAnytype3: ").Append(MapWithUndeclaredPropertiesAnytype3).Append("\n");
+            sb.Append("  EmptyMap: ").Append(EmptyMap).Append("\n");
+            sb.Append("  MapWithUndeclaredPropertiesString: ").Append(MapWithUndeclaredPropertiesString).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as AdditionalPropertiesClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if AdditionalPropertiesClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of AdditionalPropertiesClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(AdditionalPropertiesClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.MapProperty != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapProperty.GetHashCode();
+                }
+                if (this.MapOfMapProperty != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapOfMapProperty.GetHashCode();
+                }
+                if (this.Anytype1 != null)
+                {
+                    hashCode = (hashCode * 59) + this.Anytype1.GetHashCode();
+                }
+                if (this.MapWithUndeclaredPropertiesAnytype1 != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapWithUndeclaredPropertiesAnytype1.GetHashCode();
+                }
+                if (this.MapWithUndeclaredPropertiesAnytype2 != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapWithUndeclaredPropertiesAnytype2.GetHashCode();
+                }
+                if (this.MapWithUndeclaredPropertiesAnytype3 != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapWithUndeclaredPropertiesAnytype3.GetHashCode();
+                }
+                if (this.EmptyMap != null)
+                {
+                    hashCode = (hashCode * 59) + this.EmptyMap.GetHashCode();
+                }
+                if (this.MapWithUndeclaredPropertiesString != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapWithUndeclaredPropertiesString.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Animal.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Animal.cs
new file mode 100644
index 00000000000..78077d2bed4
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Animal.cs
@@ -0,0 +1,173 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Animal
+    /// </summary>
+    [DataContract(Name = "Animal")]
+    [JsonConverter(typeof(JsonSubtypes), "ClassName")]
+    [JsonSubtypes.KnownSubType(typeof(Cat), "Cat")]
+    [JsonSubtypes.KnownSubType(typeof(Dog), "Dog")]
+    public partial class Animal : IEquatable<Animal>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Animal" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Animal()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Animal" /> class.
+        /// </summary>
+        /// <param name="className">className (required).</param>
+        /// <param name="color">color (default to &quot;red&quot;).</param>
+        public Animal(string className = default(string), string color = @"red")
+        {
+            // to ensure "className" is required (not null)
+            if (className == null)
+            {
+                throw new ArgumentNullException("className is a required property for Animal and cannot be null");
+            }
+            this.ClassName = className;
+            // use default value if no "color" provided
+            this.Color = color ?? @"red";
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ClassName
+        /// </summary>
+        [DataMember(Name = "className", IsRequired = true, EmitDefaultValue = true)]
+        public string ClassName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Color
+        /// </summary>
+        [DataMember(Name = "color", EmitDefaultValue = false)]
+        public string Color { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Animal {\n");
+            sb.Append("  ClassName: ").Append(ClassName).Append("\n");
+            sb.Append("  Color: ").Append(Color).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Animal).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Animal instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Animal to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Animal input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ClassName != null)
+                {
+                    hashCode = (hashCode * 59) + this.ClassName.GetHashCode();
+                }
+                if (this.Color != null)
+                {
+                    hashCode = (hashCode * 59) + this.Color.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ApiResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ApiResponse.cs
new file mode 100644
index 00000000000..6d70e97a51c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ApiResponse.cs
@@ -0,0 +1,155 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ApiResponse
+    /// </summary>
+    [DataContract(Name = "ApiResponse")]
+    public partial class ApiResponse : IEquatable<ApiResponse>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse" /> class.
+        /// </summary>
+        /// <param name="code">code.</param>
+        /// <param name="type">type.</param>
+        /// <param name="message">message.</param>
+        public ApiResponse(int code = default(int), string type = default(string), string message = default(string))
+        {
+            this.Code = code;
+            this.Type = type;
+            this.Message = message;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Code
+        /// </summary>
+        [DataMember(Name = "code", EmitDefaultValue = false)]
+        public int Code { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Type
+        /// </summary>
+        [DataMember(Name = "type", EmitDefaultValue = false)]
+        public string Type { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Message
+        /// </summary>
+        [DataMember(Name = "message", EmitDefaultValue = false)]
+        public string Message { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ApiResponse {\n");
+            sb.Append("  Code: ").Append(Code).Append("\n");
+            sb.Append("  Type: ").Append(Type).Append("\n");
+            sb.Append("  Message: ").Append(Message).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ApiResponse).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ApiResponse instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ApiResponse to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ApiResponse input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Code.GetHashCode();
+                if (this.Type != null)
+                {
+                    hashCode = (hashCode * 59) + this.Type.GetHashCode();
+                }
+                if (this.Message != null)
+                {
+                    hashCode = (hashCode * 59) + this.Message.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Apple.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Apple.cs
new file mode 100644
index 00000000000..5ff006145c2
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Apple.cs
@@ -0,0 +1,185 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Apple
+    /// </summary>
+    [DataContract(Name = "apple")]
+    public partial class Apple : IEquatable<Apple>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Apple" /> class.
+        /// </summary>
+        /// <param name="cultivar">cultivar.</param>
+        /// <param name="origin">origin.</param>
+        /// <param name="colorCode">colorCode.</param>
+        public Apple(string cultivar = default(string), string origin = default(string), string colorCode = default(string))
+        {
+            this.Cultivar = cultivar;
+            this.Origin = origin;
+            this.ColorCode = colorCode;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Cultivar
+        /// </summary>
+        [DataMember(Name = "cultivar", EmitDefaultValue = false)]
+        public string Cultivar { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Origin
+        /// </summary>
+        [DataMember(Name = "origin", EmitDefaultValue = false)]
+        public string Origin { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ColorCode
+        /// </summary>
+        [DataMember(Name = "color_code", EmitDefaultValue = false)]
+        public string ColorCode { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Apple {\n");
+            sb.Append("  Cultivar: ").Append(Cultivar).Append("\n");
+            sb.Append("  Origin: ").Append(Origin).Append("\n");
+            sb.Append("  ColorCode: ").Append(ColorCode).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Apple).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Apple instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Apple to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Apple input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Cultivar != null)
+                {
+                    hashCode = (hashCode * 59) + this.Cultivar.GetHashCode();
+                }
+                if (this.Origin != null)
+                {
+                    hashCode = (hashCode * 59) + this.Origin.GetHashCode();
+                }
+                if (this.ColorCode != null)
+                {
+                    hashCode = (hashCode * 59) + this.ColorCode.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            if (this.Cultivar != null) {
+                // Cultivar (string) pattern
+                Regex regexCultivar = new Regex(@"^[a-zA-Z\s]*$", RegexOptions.CultureInvariant);
+                if (!regexCultivar.Match(this.Cultivar).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Cultivar, must match a pattern of " + regexCultivar, new [] { "Cultivar" });
+                }
+            }
+
+            if (this.Origin != null) {
+                // Origin (string) pattern
+                Regex regexOrigin = new Regex(@"^[A-Z\s]*$", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
+                if (!regexOrigin.Match(this.Origin).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Origin, must match a pattern of " + regexOrigin, new [] { "Origin" });
+                }
+            }
+
+            if (this.ColorCode != null) {
+                // ColorCode (string) pattern
+                Regex regexColorCode = new Regex(@"^#(([0-9a-fA-F]{2}){3}|([0-9a-fA-F]){3})$", RegexOptions.CultureInvariant);
+                if (!regexColorCode.Match(this.ColorCode).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for ColorCode, must match a pattern of " + regexColorCode, new [] { "ColorCode" });
+                }
+            }
+
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AppleReq.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AppleReq.cs
new file mode 100644
index 00000000000..16df556db5d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/AppleReq.cs
@@ -0,0 +1,140 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// AppleReq
+    /// </summary>
+    [DataContract(Name = "appleReq")]
+    public partial class AppleReq : IEquatable<AppleReq>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AppleReq" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected AppleReq() { }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AppleReq" /> class.
+        /// </summary>
+        /// <param name="cultivar">cultivar (required).</param>
+        /// <param name="mealy">mealy.</param>
+        public AppleReq(string cultivar = default(string), bool mealy = default(bool))
+        {
+            // to ensure "cultivar" is required (not null)
+            if (cultivar == null)
+            {
+                throw new ArgumentNullException("cultivar is a required property for AppleReq and cannot be null");
+            }
+            this.Cultivar = cultivar;
+            this.Mealy = mealy;
+        }
+
+        /// <summary>
+        /// Gets or Sets Cultivar
+        /// </summary>
+        [DataMember(Name = "cultivar", IsRequired = true, EmitDefaultValue = true)]
+        public string Cultivar { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Mealy
+        /// </summary>
+        [DataMember(Name = "mealy", EmitDefaultValue = true)]
+        public bool Mealy { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class AppleReq {\n");
+            sb.Append("  Cultivar: ").Append(Cultivar).Append("\n");
+            sb.Append("  Mealy: ").Append(Mealy).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as AppleReq).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if AppleReq instances are equal
+        /// </summary>
+        /// <param name="input">Instance of AppleReq to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(AppleReq input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Cultivar != null)
+                {
+                    hashCode = (hashCode * 59) + this.Cultivar.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.Mealy.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
new file mode 100644
index 00000000000..06e930e774c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ArrayOfArrayOfNumberOnly
+    /// </summary>
+    [DataContract(Name = "ArrayOfArrayOfNumberOnly")]
+    public partial class ArrayOfArrayOfNumberOnly : IEquatable<ArrayOfArrayOfNumberOnly>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ArrayOfArrayOfNumberOnly" /> class.
+        /// </summary>
+        /// <param name="arrayArrayNumber">arrayArrayNumber.</param>
+        public ArrayOfArrayOfNumberOnly(List<List<decimal>> arrayArrayNumber = default(List<List<decimal>>))
+        {
+            this.ArrayArrayNumber = arrayArrayNumber;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ArrayArrayNumber
+        /// </summary>
+        [DataMember(Name = "ArrayArrayNumber", EmitDefaultValue = false)]
+        public List<List<decimal>> ArrayArrayNumber { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ArrayOfArrayOfNumberOnly {\n");
+            sb.Append("  ArrayArrayNumber: ").Append(ArrayArrayNumber).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ArrayOfArrayOfNumberOnly).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ArrayOfArrayOfNumberOnly instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ArrayOfArrayOfNumberOnly to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ArrayOfArrayOfNumberOnly input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ArrayArrayNumber != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayArrayNumber.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
new file mode 100644
index 00000000000..da8a65b26f5
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ArrayOfNumberOnly
+    /// </summary>
+    [DataContract(Name = "ArrayOfNumberOnly")]
+    public partial class ArrayOfNumberOnly : IEquatable<ArrayOfNumberOnly>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ArrayOfNumberOnly" /> class.
+        /// </summary>
+        /// <param name="arrayNumber">arrayNumber.</param>
+        public ArrayOfNumberOnly(List<decimal> arrayNumber = default(List<decimal>))
+        {
+            this.ArrayNumber = arrayNumber;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ArrayNumber
+        /// </summary>
+        [DataMember(Name = "ArrayNumber", EmitDefaultValue = false)]
+        public List<decimal> ArrayNumber { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ArrayOfNumberOnly {\n");
+            sb.Append("  ArrayNumber: ").Append(ArrayNumber).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ArrayOfNumberOnly).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ArrayOfNumberOnly instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ArrayOfNumberOnly to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ArrayOfNumberOnly input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ArrayNumber != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayNumber.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayTest.cs
new file mode 100644
index 00000000000..3e823100067
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ArrayTest.cs
@@ -0,0 +1,158 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ArrayTest
+    /// </summary>
+    [DataContract(Name = "ArrayTest")]
+    public partial class ArrayTest : IEquatable<ArrayTest>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ArrayTest" /> class.
+        /// </summary>
+        /// <param name="arrayOfString">arrayOfString.</param>
+        /// <param name="arrayArrayOfInteger">arrayArrayOfInteger.</param>
+        /// <param name="arrayArrayOfModel">arrayArrayOfModel.</param>
+        public ArrayTest(List<string> arrayOfString = default(List<string>), List<List<long>> arrayArrayOfInteger = default(List<List<long>>), List<List<ReadOnlyFirst>> arrayArrayOfModel = default(List<List<ReadOnlyFirst>>))
+        {
+            this.ArrayOfString = arrayOfString;
+            this.ArrayArrayOfInteger = arrayArrayOfInteger;
+            this.ArrayArrayOfModel = arrayArrayOfModel;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ArrayOfString
+        /// </summary>
+        [DataMember(Name = "array_of_string", EmitDefaultValue = false)]
+        public List<string> ArrayOfString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ArrayArrayOfInteger
+        /// </summary>
+        [DataMember(Name = "array_array_of_integer", EmitDefaultValue = false)]
+        public List<List<long>> ArrayArrayOfInteger { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ArrayArrayOfModel
+        /// </summary>
+        [DataMember(Name = "array_array_of_model", EmitDefaultValue = false)]
+        public List<List<ReadOnlyFirst>> ArrayArrayOfModel { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ArrayTest {\n");
+            sb.Append("  ArrayOfString: ").Append(ArrayOfString).Append("\n");
+            sb.Append("  ArrayArrayOfInteger: ").Append(ArrayArrayOfInteger).Append("\n");
+            sb.Append("  ArrayArrayOfModel: ").Append(ArrayArrayOfModel).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ArrayTest).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ArrayTest instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ArrayTest to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ArrayTest input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ArrayOfString != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayOfString.GetHashCode();
+                }
+                if (this.ArrayArrayOfInteger != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayArrayOfInteger.GetHashCode();
+                }
+                if (this.ArrayArrayOfModel != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayArrayOfModel.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Banana.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Banana.cs
new file mode 100644
index 00000000000..70aeea02471
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Banana.cs
@@ -0,0 +1,129 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Banana
+    /// </summary>
+    [DataContract(Name = "banana")]
+    public partial class Banana : IEquatable<Banana>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Banana" /> class.
+        /// </summary>
+        /// <param name="lengthCm">lengthCm.</param>
+        public Banana(decimal lengthCm = default(decimal))
+        {
+            this.LengthCm = lengthCm;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets LengthCm
+        /// </summary>
+        [DataMember(Name = "lengthCm", EmitDefaultValue = false)]
+        public decimal LengthCm { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Banana {\n");
+            sb.Append("  LengthCm: ").Append(LengthCm).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Banana).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Banana instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Banana to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Banana input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.LengthCm.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/BananaReq.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/BananaReq.cs
new file mode 100644
index 00000000000..6a4edb3394d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/BananaReq.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// BananaReq
+    /// </summary>
+    [DataContract(Name = "bananaReq")]
+    public partial class BananaReq : IEquatable<BananaReq>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BananaReq" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected BananaReq() { }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BananaReq" /> class.
+        /// </summary>
+        /// <param name="lengthCm">lengthCm (required).</param>
+        /// <param name="sweet">sweet.</param>
+        public BananaReq(decimal lengthCm = default(decimal), bool sweet = default(bool))
+        {
+            this.LengthCm = lengthCm;
+            this.Sweet = sweet;
+        }
+
+        /// <summary>
+        /// Gets or Sets LengthCm
+        /// </summary>
+        [DataMember(Name = "lengthCm", IsRequired = true, EmitDefaultValue = true)]
+        public decimal LengthCm { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Sweet
+        /// </summary>
+        [DataMember(Name = "sweet", EmitDefaultValue = true)]
+        public bool Sweet { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class BananaReq {\n");
+            sb.Append("  LengthCm: ").Append(LengthCm).Append("\n");
+            sb.Append("  Sweet: ").Append(Sweet).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as BananaReq).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if BananaReq instances are equal
+        /// </summary>
+        /// <param name="input">Instance of BananaReq to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(BananaReq input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.LengthCm.GetHashCode();
+                hashCode = (hashCode * 59) + this.Sweet.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/BasquePig.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/BasquePig.cs
new file mode 100644
index 00000000000..838f5741cf6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/BasquePig.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// BasquePig
+    /// </summary>
+    [DataContract(Name = "BasquePig")]
+    public partial class BasquePig : IEquatable<BasquePig>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BasquePig" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected BasquePig()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BasquePig" /> class.
+        /// </summary>
+        /// <param name="className">className (required).</param>
+        public BasquePig(string className = default(string))
+        {
+            // to ensure "className" is required (not null)
+            if (className == null)
+            {
+                throw new ArgumentNullException("className is a required property for BasquePig and cannot be null");
+            }
+            this.ClassName = className;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ClassName
+        /// </summary>
+        [DataMember(Name = "className", IsRequired = true, EmitDefaultValue = true)]
+        public string ClassName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class BasquePig {\n");
+            sb.Append("  ClassName: ").Append(ClassName).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as BasquePig).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if BasquePig instances are equal
+        /// </summary>
+        /// <param name="input">Instance of BasquePig to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(BasquePig input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ClassName != null)
+                {
+                    hashCode = (hashCode * 59) + this.ClassName.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Capitalization.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Capitalization.cs
new file mode 100644
index 00000000000..bd317ad8747
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Capitalization.cs
@@ -0,0 +1,198 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Capitalization
+    /// </summary>
+    [DataContract(Name = "Capitalization")]
+    public partial class Capitalization : IEquatable<Capitalization>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Capitalization" /> class.
+        /// </summary>
+        /// <param name="smallCamel">smallCamel.</param>
+        /// <param name="capitalCamel">capitalCamel.</param>
+        /// <param name="smallSnake">smallSnake.</param>
+        /// <param name="capitalSnake">capitalSnake.</param>
+        /// <param name="sCAETHFlowPoints">sCAETHFlowPoints.</param>
+        /// <param name="aTTNAME">Name of the pet .</param>
+        public Capitalization(string smallCamel = default(string), string capitalCamel = default(string), string smallSnake = default(string), string capitalSnake = default(string), string sCAETHFlowPoints = default(string), string aTTNAME = default(string))
+        {
+            this.SmallCamel = smallCamel;
+            this.CapitalCamel = capitalCamel;
+            this.SmallSnake = smallSnake;
+            this.CapitalSnake = capitalSnake;
+            this.SCAETHFlowPoints = sCAETHFlowPoints;
+            this.ATT_NAME = aTTNAME;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets SmallCamel
+        /// </summary>
+        [DataMember(Name = "smallCamel", EmitDefaultValue = false)]
+        public string SmallCamel { get; set; }
+
+        /// <summary>
+        /// Gets or Sets CapitalCamel
+        /// </summary>
+        [DataMember(Name = "CapitalCamel", EmitDefaultValue = false)]
+        public string CapitalCamel { get; set; }
+
+        /// <summary>
+        /// Gets or Sets SmallSnake
+        /// </summary>
+        [DataMember(Name = "small_Snake", EmitDefaultValue = false)]
+        public string SmallSnake { get; set; }
+
+        /// <summary>
+        /// Gets or Sets CapitalSnake
+        /// </summary>
+        [DataMember(Name = "Capital_Snake", EmitDefaultValue = false)]
+        public string CapitalSnake { get; set; }
+
+        /// <summary>
+        /// Gets or Sets SCAETHFlowPoints
+        /// </summary>
+        [DataMember(Name = "SCA_ETH_Flow_Points", EmitDefaultValue = false)]
+        public string SCAETHFlowPoints { get; set; }
+
+        /// <summary>
+        /// Name of the pet 
+        /// </summary>
+        /// <value>Name of the pet </value>
+        [DataMember(Name = "ATT_NAME", EmitDefaultValue = false)]
+        public string ATT_NAME { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Capitalization {\n");
+            sb.Append("  SmallCamel: ").Append(SmallCamel).Append("\n");
+            sb.Append("  CapitalCamel: ").Append(CapitalCamel).Append("\n");
+            sb.Append("  SmallSnake: ").Append(SmallSnake).Append("\n");
+            sb.Append("  CapitalSnake: ").Append(CapitalSnake).Append("\n");
+            sb.Append("  SCAETHFlowPoints: ").Append(SCAETHFlowPoints).Append("\n");
+            sb.Append("  ATT_NAME: ").Append(ATT_NAME).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Capitalization).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Capitalization instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Capitalization to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Capitalization input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.SmallCamel != null)
+                {
+                    hashCode = (hashCode * 59) + this.SmallCamel.GetHashCode();
+                }
+                if (this.CapitalCamel != null)
+                {
+                    hashCode = (hashCode * 59) + this.CapitalCamel.GetHashCode();
+                }
+                if (this.SmallSnake != null)
+                {
+                    hashCode = (hashCode * 59) + this.SmallSnake.GetHashCode();
+                }
+                if (this.CapitalSnake != null)
+                {
+                    hashCode = (hashCode * 59) + this.CapitalSnake.GetHashCode();
+                }
+                if (this.SCAETHFlowPoints != null)
+                {
+                    hashCode = (hashCode * 59) + this.SCAETHFlowPoints.GetHashCode();
+                }
+                if (this.ATT_NAME != null)
+                {
+                    hashCode = (hashCode * 59) + this.ATT_NAME.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Cat.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Cat.cs
new file mode 100644
index 00000000000..49a0dc8ada3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Cat.cs
@@ -0,0 +1,156 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Cat
+    /// </summary>
+    [DataContract(Name = "Cat")]
+    [JsonConverter(typeof(JsonSubtypes), "ClassName")]
+    public partial class Cat : Animal, IEquatable<Cat>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Cat" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Cat()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Cat" /> class.
+        /// </summary>
+        /// <param name="declawed">declawed.</param>
+        /// <param name="className">className (required) (default to &quot;Cat&quot;).</param>
+        /// <param name="color">color (default to &quot;red&quot;).</param>
+        public Cat(bool declawed = default(bool), string className = @"Cat", string color = @"red") : base(className, color)
+        {
+            this.Declawed = declawed;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Declawed
+        /// </summary>
+        [DataMember(Name = "declawed", EmitDefaultValue = true)]
+        public bool Declawed { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Cat {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  Declawed: ").Append(Declawed).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Cat).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Cat instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Cat to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Cat input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                hashCode = (hashCode * 59) + this.Declawed.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            foreach (var x in base.BaseValidate(validationContext))
+            {
+                yield return x;
+            }
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Category.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Category.cs
new file mode 100644
index 00000000000..2313431e4d6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Category.cs
@@ -0,0 +1,155 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Category
+    /// </summary>
+    [DataContract(Name = "Category")]
+    public partial class Category : IEquatable<Category>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Category" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Category()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Category" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="name">name (required) (default to &quot;default-name&quot;).</param>
+        public Category(long id = default(long), string name = @"default-name")
+        {
+            // to ensure "name" is required (not null)
+            if (name == null)
+            {
+                throw new ArgumentNullException("name is a required property for Category and cannot be null");
+            }
+            this.Name = name;
+            this.Id = id;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", IsRequired = true, EmitDefaultValue = true)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Category {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Category).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Category instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Category to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Category input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Id.GetHashCode();
+                if (this.Name != null)
+                {
+                    hashCode = (hashCode * 59) + this.Name.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ChildCat.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ChildCat.cs
new file mode 100644
index 00000000000..eaeb0202a26
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ChildCat.cs
@@ -0,0 +1,172 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ChildCat
+    /// </summary>
+    [DataContract(Name = "ChildCat")]
+    [JsonConverter(typeof(JsonSubtypes), "PetType")]
+    public partial class ChildCat : ParentPet, IEquatable<ChildCat>, IValidatableObject
+    {
+        /// <summary>
+        /// Defines PetType
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum PetTypeEnum
+        {
+            /// <summary>
+            /// Enum ChildCat for value: ChildCat
+            /// </summary>
+            [EnumMember(Value = "ChildCat")]
+            ChildCat = 1
+        }
+
+
+        /// <summary>
+        /// Gets or Sets PetType
+        /// </summary>
+        [DataMember(Name = "pet_type", EmitDefaultValue = false)]
+        public PetTypeEnum? PetType { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ChildCat" /> class.
+        /// </summary>
+        /// <param name="name">name.</param>
+        /// <param name="petType">petType (default to PetTypeEnum.ChildCat).</param>
+        public ChildCat(string name = default(string), PetTypeEnum? petType = PetTypeEnum.ChildCat) : base()
+        {
+            this.Name = name;
+            this.PetType = petType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", EmitDefaultValue = false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ChildCat {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  PetType: ").Append(PetType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ChildCat).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ChildCat instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ChildCat to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ChildCat input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                if (this.Name != null)
+                {
+                    hashCode = (hashCode * 59) + this.Name.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.PetType.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            foreach (var x in base.BaseValidate(validationContext))
+            {
+                yield return x;
+            }
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ClassModel.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ClassModel.cs
new file mode 100644
index 00000000000..19aedc1734b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ClassModel.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Model for testing model with \&quot;_class\&quot; property
+    /// </summary>
+    [DataContract(Name = "ClassModel")]
+    public partial class ClassModel : IEquatable<ClassModel>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ClassModel" /> class.
+        /// </summary>
+        /// <param name="varClass">varClass.</param>
+        public ClassModel(string varClass = default(string))
+        {
+            this.VarClass = varClass;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets VarClass
+        /// </summary>
+        [DataMember(Name = "_class", EmitDefaultValue = false)]
+        public string VarClass { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ClassModel {\n");
+            sb.Append("  VarClass: ").Append(VarClass).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ClassModel).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ClassModel instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ClassModel to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ClassModel input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.VarClass != null)
+                {
+                    hashCode = (hashCode * 59) + this.VarClass.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
new file mode 100644
index 00000000000..4c1b999c7f1
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
@@ -0,0 +1,163 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ComplexQuadrilateral
+    /// </summary>
+    [DataContract(Name = "ComplexQuadrilateral")]
+    public partial class ComplexQuadrilateral : IEquatable<ComplexQuadrilateral>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ComplexQuadrilateral" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected ComplexQuadrilateral()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ComplexQuadrilateral" /> class.
+        /// </summary>
+        /// <param name="shapeType">shapeType (required).</param>
+        /// <param name="quadrilateralType">quadrilateralType (required).</param>
+        public ComplexQuadrilateral(string shapeType = default(string), string quadrilateralType = default(string))
+        {
+            // to ensure "shapeType" is required (not null)
+            if (shapeType == null)
+            {
+                throw new ArgumentNullException("shapeType is a required property for ComplexQuadrilateral and cannot be null");
+            }
+            this.ShapeType = shapeType;
+            // to ensure "quadrilateralType" is required (not null)
+            if (quadrilateralType == null)
+            {
+                throw new ArgumentNullException("quadrilateralType is a required property for ComplexQuadrilateral and cannot be null");
+            }
+            this.QuadrilateralType = quadrilateralType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ShapeType
+        /// </summary>
+        [DataMember(Name = "shapeType", IsRequired = true, EmitDefaultValue = true)]
+        public string ShapeType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets QuadrilateralType
+        /// </summary>
+        [DataMember(Name = "quadrilateralType", IsRequired = true, EmitDefaultValue = true)]
+        public string QuadrilateralType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ComplexQuadrilateral {\n");
+            sb.Append("  ShapeType: ").Append(ShapeType).Append("\n");
+            sb.Append("  QuadrilateralType: ").Append(QuadrilateralType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ComplexQuadrilateral).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ComplexQuadrilateral instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ComplexQuadrilateral to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ComplexQuadrilateral input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ShapeType != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShapeType.GetHashCode();
+                }
+                if (this.QuadrilateralType != null)
+                {
+                    hashCode = (hashCode * 59) + this.QuadrilateralType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DanishPig.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DanishPig.cs
new file mode 100644
index 00000000000..3c1138fe977
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DanishPig.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// DanishPig
+    /// </summary>
+    [DataContract(Name = "DanishPig")]
+    public partial class DanishPig : IEquatable<DanishPig>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DanishPig" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected DanishPig()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DanishPig" /> class.
+        /// </summary>
+        /// <param name="className">className (required).</param>
+        public DanishPig(string className = default(string))
+        {
+            // to ensure "className" is required (not null)
+            if (className == null)
+            {
+                throw new ArgumentNullException("className is a required property for DanishPig and cannot be null");
+            }
+            this.ClassName = className;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ClassName
+        /// </summary>
+        [DataMember(Name = "className", IsRequired = true, EmitDefaultValue = true)]
+        public string ClassName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class DanishPig {\n");
+            sb.Append("  ClassName: ").Append(ClassName).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as DanishPig).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if DanishPig instances are equal
+        /// </summary>
+        /// <param name="input">Instance of DanishPig to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(DanishPig input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ClassName != null)
+                {
+                    hashCode = (hashCode * 59) + this.ClassName.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DateOnlyClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DateOnlyClass.cs
new file mode 100644
index 00000000000..d618b5ba110
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DateOnlyClass.cs
@@ -0,0 +1,134 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// DateOnlyClass
+    /// </summary>
+    [DataContract(Name = "DateOnlyClass")]
+    public partial class DateOnlyClass : IEquatable<DateOnlyClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DateOnlyClass" /> class.
+        /// </summary>
+        /// <param name="dateOnlyProperty">dateOnlyProperty.</param>
+        public DateOnlyClass(DateTime dateOnlyProperty = default(DateTime))
+        {
+            this.DateOnlyProperty = dateOnlyProperty;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets DateOnlyProperty
+        /// </summary>
+        /// <example>Fri Jul 21 00:00:00 UTC 2017</example>
+        [DataMember(Name = "dateOnlyProperty", EmitDefaultValue = false)]
+        [JsonConverter(typeof(OpenAPIDateConverter))]
+        public DateTime DateOnlyProperty { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class DateOnlyClass {\n");
+            sb.Append("  DateOnlyProperty: ").Append(DateOnlyProperty).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as DateOnlyClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if DateOnlyClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of DateOnlyClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(DateOnlyClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.DateOnlyProperty != null)
+                {
+                    hashCode = (hashCode * 59) + this.DateOnlyProperty.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DeprecatedObject.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DeprecatedObject.cs
new file mode 100644
index 00000000000..1a6841a713c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/DeprecatedObject.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// DeprecatedObject
+    /// </summary>
+    [DataContract(Name = "DeprecatedObject")]
+    public partial class DeprecatedObject : IEquatable<DeprecatedObject>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DeprecatedObject" /> class.
+        /// </summary>
+        /// <param name="name">name.</param>
+        public DeprecatedObject(string name = default(string))
+        {
+            this.Name = name;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", EmitDefaultValue = false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class DeprecatedObject {\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as DeprecatedObject).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if DeprecatedObject instances are equal
+        /// </summary>
+        /// <param name="input">Instance of DeprecatedObject to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(DeprecatedObject input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Name != null)
+                {
+                    hashCode = (hashCode * 59) + this.Name.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Dog.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Dog.cs
new file mode 100644
index 00000000000..32f2bbd7fa7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Dog.cs
@@ -0,0 +1,159 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Dog
+    /// </summary>
+    [DataContract(Name = "Dog")]
+    [JsonConverter(typeof(JsonSubtypes), "ClassName")]
+    public partial class Dog : Animal, IEquatable<Dog>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Dog" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Dog()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Dog" /> class.
+        /// </summary>
+        /// <param name="breed">breed.</param>
+        /// <param name="className">className (required) (default to &quot;Dog&quot;).</param>
+        /// <param name="color">color (default to &quot;red&quot;).</param>
+        public Dog(string breed = default(string), string className = @"Dog", string color = @"red") : base(className, color)
+        {
+            this.Breed = breed;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Breed
+        /// </summary>
+        [DataMember(Name = "breed", EmitDefaultValue = false)]
+        public string Breed { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Dog {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  Breed: ").Append(Breed).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Dog).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Dog instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Dog to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Dog input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                if (this.Breed != null)
+                {
+                    hashCode = (hashCode * 59) + this.Breed.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            foreach (var x in base.BaseValidate(validationContext))
+            {
+                yield return x;
+            }
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Drawing.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Drawing.cs
new file mode 100644
index 00000000000..d5d633ed3b3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Drawing.cs
@@ -0,0 +1,182 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Drawing
+    /// </summary>
+    [DataContract(Name = "Drawing")]
+    public partial class Drawing : Dictionary<String, Fruit>, IEquatable<Drawing>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Drawing" /> class.
+        /// </summary>
+        /// <param name="mainShape">mainShape.</param>
+        /// <param name="shapeOrNull">shapeOrNull.</param>
+        /// <param name="nullableShape">nullableShape.</param>
+        /// <param name="shapes">shapes.</param>
+        public Drawing(Shape mainShape = default(Shape), ShapeOrNull shapeOrNull = default(ShapeOrNull), NullableShape nullableShape = default(NullableShape), List<Shape> shapes = default(List<Shape>)) : base()
+        {
+            this.MainShape = mainShape;
+            this.ShapeOrNull = shapeOrNull;
+            this.NullableShape = nullableShape;
+            this.Shapes = shapes;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets MainShape
+        /// </summary>
+        [DataMember(Name = "mainShape", EmitDefaultValue = false)]
+        public Shape MainShape { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ShapeOrNull
+        /// </summary>
+        [DataMember(Name = "shapeOrNull", EmitDefaultValue = true)]
+        public ShapeOrNull ShapeOrNull { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NullableShape
+        /// </summary>
+        [DataMember(Name = "nullableShape", EmitDefaultValue = true)]
+        public NullableShape NullableShape { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Shapes
+        /// </summary>
+        [DataMember(Name = "shapes", EmitDefaultValue = false)]
+        public List<Shape> Shapes { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Drawing {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  MainShape: ").Append(MainShape).Append("\n");
+            sb.Append("  ShapeOrNull: ").Append(ShapeOrNull).Append("\n");
+            sb.Append("  NullableShape: ").Append(NullableShape).Append("\n");
+            sb.Append("  Shapes: ").Append(Shapes).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Drawing).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Drawing instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Drawing to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Drawing input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                if (this.MainShape != null)
+                {
+                    hashCode = (hashCode * 59) + this.MainShape.GetHashCode();
+                }
+                if (this.ShapeOrNull != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShapeOrNull.GetHashCode();
+                }
+                if (this.NullableShape != null)
+                {
+                    hashCode = (hashCode * 59) + this.NullableShape.GetHashCode();
+                }
+                if (this.Shapes != null)
+                {
+                    hashCode = (hashCode * 59) + this.Shapes.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumArrays.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumArrays.cs
new file mode 100644
index 00000000000..61591e9174d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumArrays.cs
@@ -0,0 +1,180 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// EnumArrays
+    /// </summary>
+    [DataContract(Name = "EnumArrays")]
+    public partial class EnumArrays : IEquatable<EnumArrays>, IValidatableObject
+    {
+        /// <summary>
+        /// Defines JustSymbol
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum JustSymbolEnum
+        {
+            /// <summary>
+            /// Enum GreaterThanOrEqualTo for value: &gt;&#x3D;
+            /// </summary>
+            [EnumMember(Value = ">=")]
+            GreaterThanOrEqualTo = 1,
+
+            /// <summary>
+            /// Enum Dollar for value: $
+            /// </summary>
+            [EnumMember(Value = "$")]
+            Dollar = 2
+        }
+
+
+        /// <summary>
+        /// Gets or Sets JustSymbol
+        /// </summary>
+        [DataMember(Name = "just_symbol", EmitDefaultValue = false)]
+        public JustSymbolEnum? JustSymbol { get; set; }
+        /// <summary>
+        /// Defines ArrayEnum
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum ArrayEnumEnum
+        {
+            /// <summary>
+            /// Enum Fish for value: fish
+            /// </summary>
+            [EnumMember(Value = "fish")]
+            Fish = 1,
+
+            /// <summary>
+            /// Enum Crab for value: crab
+            /// </summary>
+            [EnumMember(Value = "crab")]
+            Crab = 2
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EnumArrays" /> class.
+        /// </summary>
+        /// <param name="justSymbol">justSymbol.</param>
+        /// <param name="arrayEnum">arrayEnum.</param>
+        public EnumArrays(JustSymbolEnum? justSymbol = default(JustSymbolEnum?), List<ArrayEnumEnum> arrayEnum = default(List<ArrayEnumEnum>))
+        {
+            this.JustSymbol = justSymbol;
+            this.ArrayEnum = arrayEnum;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ArrayEnum
+        /// </summary>
+        [DataMember(Name = "array_enum", EmitDefaultValue = false)]
+        public List<EnumArrays.ArrayEnumEnum> ArrayEnum { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class EnumArrays {\n");
+            sb.Append("  JustSymbol: ").Append(JustSymbol).Append("\n");
+            sb.Append("  ArrayEnum: ").Append(ArrayEnum).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as EnumArrays).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if EnumArrays instances are equal
+        /// </summary>
+        /// <param name="input">Instance of EnumArrays to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(EnumArrays input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.JustSymbol.GetHashCode();
+                if (this.ArrayEnum != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayEnum.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumClass.cs
new file mode 100644
index 00000000000..c47540b557a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumClass.cs
@@ -0,0 +1,54 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Defines EnumClass
+    /// </summary>
+    [JsonConverter(typeof(StringEnumConverter))]
+    public enum EnumClass
+    {
+        /// <summary>
+        /// Enum Abc for value: _abc
+        /// </summary>
+        [EnumMember(Value = "_abc")]
+        Abc = 1,
+
+        /// <summary>
+        /// Enum Efg for value: -efg
+        /// </summary>
+        [EnumMember(Value = "-efg")]
+        Efg = 2,
+
+        /// <summary>
+        /// Enum Xyz for value: (xyz)
+        /// </summary>
+        [EnumMember(Value = "(xyz)")]
+        Xyz = 3
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumTest.cs
new file mode 100644
index 00000000000..de9905a5d94
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EnumTest.cs
@@ -0,0 +1,378 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// EnumTest
+    /// </summary>
+    [DataContract(Name = "Enum_Test")]
+    public partial class EnumTest : IEquatable<EnumTest>, IValidatableObject
+    {
+        /// <summary>
+        /// Defines EnumString
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum EnumStringEnum
+        {
+            /// <summary>
+            /// Enum UPPER for value: UPPER
+            /// </summary>
+            [EnumMember(Value = "UPPER")]
+            UPPER = 1,
+
+            /// <summary>
+            /// Enum Lower for value: lower
+            /// </summary>
+            [EnumMember(Value = "lower")]
+            Lower = 2,
+
+            /// <summary>
+            /// Enum Empty for value: 
+            /// </summary>
+            [EnumMember(Value = "")]
+            Empty = 3,
+
+            /// <summary>
+            /// Enum ValuewithTab for value: Value\twith tab
+            /// </summary>
+            [EnumMember(Value = "Value\twith tab")]
+            ValuewithTab = 4,
+
+            /// <summary>
+            /// Enum ValueWithQuote for value: Value with \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with \" quote")]
+            ValueWithQuote = 5,
+
+            /// <summary>
+            /// Enum ValueWithEscapedQuote for value: Value with escaped \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with escaped \" quote")]
+            ValueWithEscapedQuote = 6,
+
+            /// <summary>
+            /// Enum Duplicatevalue for value: Duplicate\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\nvalue")]
+            Duplicatevalue = 7,
+
+            /// <summary>
+            /// Enum Duplicatevalue2 for value: Duplicate\r\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\r\nvalue")]
+            Duplicatevalue2 = 8
+        }
+
+
+        /// <summary>
+        /// Gets or Sets EnumString
+        /// </summary>
+        [DataMember(Name = "enum_string", EmitDefaultValue = false)]
+        public EnumStringEnum? EnumString { get; set; }
+        /// <summary>
+        /// Defines EnumStringRequired
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum EnumStringRequiredEnum
+        {
+            /// <summary>
+            /// Enum UPPER for value: UPPER
+            /// </summary>
+            [EnumMember(Value = "UPPER")]
+            UPPER = 1,
+
+            /// <summary>
+            /// Enum Lower for value: lower
+            /// </summary>
+            [EnumMember(Value = "lower")]
+            Lower = 2,
+
+            /// <summary>
+            /// Enum Empty for value: 
+            /// </summary>
+            [EnumMember(Value = "")]
+            Empty = 3,
+
+            /// <summary>
+            /// Enum ValuewithTab for value: Value\twith tab
+            /// </summary>
+            [EnumMember(Value = "Value\twith tab")]
+            ValuewithTab = 4,
+
+            /// <summary>
+            /// Enum ValueWithQuote for value: Value with \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with \" quote")]
+            ValueWithQuote = 5,
+
+            /// <summary>
+            /// Enum ValueWithEscapedQuote for value: Value with escaped \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with escaped \" quote")]
+            ValueWithEscapedQuote = 6,
+
+            /// <summary>
+            /// Enum Duplicatevalue for value: Duplicate\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\nvalue")]
+            Duplicatevalue = 7,
+
+            /// <summary>
+            /// Enum Duplicatevalue2 for value: Duplicate\r\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\r\nvalue")]
+            Duplicatevalue2 = 8
+        }
+
+
+        /// <summary>
+        /// Gets or Sets EnumStringRequired
+        /// </summary>
+        [DataMember(Name = "enum_string_required", IsRequired = true, EmitDefaultValue = true)]
+        public EnumStringRequiredEnum EnumStringRequired { get; set; }
+        /// <summary>
+        /// Defines EnumInteger
+        /// </summary>
+        public enum EnumIntegerEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_1 for value: 1
+            /// </summary>
+            NUMBER_1 = 1,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_1 for value: -1
+            /// </summary>
+            NUMBER_MINUS_1 = -1
+        }
+
+
+        /// <summary>
+        /// Gets or Sets EnumInteger
+        /// </summary>
+        [DataMember(Name = "enum_integer", EmitDefaultValue = false)]
+        public EnumIntegerEnum? EnumInteger { get; set; }
+        /// <summary>
+        /// Defines EnumIntegerOnly
+        /// </summary>
+        public enum EnumIntegerOnlyEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_2 for value: 2
+            /// </summary>
+            NUMBER_2 = 2,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_2 for value: -2
+            /// </summary>
+            NUMBER_MINUS_2 = -2
+        }
+
+
+        /// <summary>
+        /// Gets or Sets EnumIntegerOnly
+        /// </summary>
+        [DataMember(Name = "enum_integer_only", EmitDefaultValue = false)]
+        public EnumIntegerOnlyEnum? EnumIntegerOnly { get; set; }
+        /// <summary>
+        /// Defines EnumNumber
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum EnumNumberEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_1_DOT_1 for value: 1.1
+            /// </summary>
+            [EnumMember(Value = "1.1")]
+            NUMBER_1_DOT_1 = 1,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_1_DOT_2 for value: -1.2
+            /// </summary>
+            [EnumMember(Value = "-1.2")]
+            NUMBER_MINUS_1_DOT_2 = 2
+        }
+
+
+        /// <summary>
+        /// Gets or Sets EnumNumber
+        /// </summary>
+        [DataMember(Name = "enum_number", EmitDefaultValue = false)]
+        public EnumNumberEnum? EnumNumber { get; set; }
+
+        /// <summary>
+        /// Gets or Sets OuterEnum
+        /// </summary>
+        [DataMember(Name = "outerEnum", EmitDefaultValue = true)]
+        public OuterEnum? OuterEnum { get; set; }
+
+        /// <summary>
+        /// Gets or Sets OuterEnumInteger
+        /// </summary>
+        [DataMember(Name = "outerEnumInteger", EmitDefaultValue = false)]
+        public OuterEnumInteger? OuterEnumInteger { get; set; }
+
+        /// <summary>
+        /// Gets or Sets OuterEnumDefaultValue
+        /// </summary>
+        [DataMember(Name = "outerEnumDefaultValue", EmitDefaultValue = false)]
+        public OuterEnumDefaultValue? OuterEnumDefaultValue { get; set; }
+
+        /// <summary>
+        /// Gets or Sets OuterEnumIntegerDefaultValue
+        /// </summary>
+        [DataMember(Name = "outerEnumIntegerDefaultValue", EmitDefaultValue = false)]
+        public OuterEnumIntegerDefaultValue? OuterEnumIntegerDefaultValue { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EnumTest" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected EnumTest()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EnumTest" /> class.
+        /// </summary>
+        /// <param name="enumString">enumString.</param>
+        /// <param name="enumStringRequired">enumStringRequired (required).</param>
+        /// <param name="enumInteger">enumInteger.</param>
+        /// <param name="enumIntegerOnly">enumIntegerOnly.</param>
+        /// <param name="enumNumber">enumNumber.</param>
+        /// <param name="outerEnum">outerEnum.</param>
+        /// <param name="outerEnumInteger">outerEnumInteger.</param>
+        /// <param name="outerEnumDefaultValue">outerEnumDefaultValue.</param>
+        /// <param name="outerEnumIntegerDefaultValue">outerEnumIntegerDefaultValue.</param>
+        public EnumTest(EnumStringEnum? enumString = default(EnumStringEnum?), EnumStringRequiredEnum enumStringRequired = default(EnumStringRequiredEnum), EnumIntegerEnum? enumInteger = default(EnumIntegerEnum?), EnumIntegerOnlyEnum? enumIntegerOnly = default(EnumIntegerOnlyEnum?), EnumNumberEnum? enumNumber = default(EnumNumberEnum?), OuterEnum? outerEnum = default(OuterEnum?), OuterEnumInteger? outerEnumInteger = default(OuterEnumInteger?), OuterEnumDefaultValue? outerEnumDefaultValue = default(OuterEnumDefaultValue?), OuterEnumIntegerDefaultValue? outerEnumIntegerDefaultValue = default(OuterEnumIntegerDefaultValue?))
+        {
+            this.EnumStringRequired = enumStringRequired;
+            this.EnumString = enumString;
+            this.EnumInteger = enumInteger;
+            this.EnumIntegerOnly = enumIntegerOnly;
+            this.EnumNumber = enumNumber;
+            this.OuterEnum = outerEnum;
+            this.OuterEnumInteger = outerEnumInteger;
+            this.OuterEnumDefaultValue = outerEnumDefaultValue;
+            this.OuterEnumIntegerDefaultValue = outerEnumIntegerDefaultValue;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class EnumTest {\n");
+            sb.Append("  EnumString: ").Append(EnumString).Append("\n");
+            sb.Append("  EnumStringRequired: ").Append(EnumStringRequired).Append("\n");
+            sb.Append("  EnumInteger: ").Append(EnumInteger).Append("\n");
+            sb.Append("  EnumIntegerOnly: ").Append(EnumIntegerOnly).Append("\n");
+            sb.Append("  EnumNumber: ").Append(EnumNumber).Append("\n");
+            sb.Append("  OuterEnum: ").Append(OuterEnum).Append("\n");
+            sb.Append("  OuterEnumInteger: ").Append(OuterEnumInteger).Append("\n");
+            sb.Append("  OuterEnumDefaultValue: ").Append(OuterEnumDefaultValue).Append("\n");
+            sb.Append("  OuterEnumIntegerDefaultValue: ").Append(OuterEnumIntegerDefaultValue).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as EnumTest).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if EnumTest instances are equal
+        /// </summary>
+        /// <param name="input">Instance of EnumTest to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(EnumTest input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.EnumString.GetHashCode();
+                hashCode = (hashCode * 59) + this.EnumStringRequired.GetHashCode();
+                hashCode = (hashCode * 59) + this.EnumInteger.GetHashCode();
+                hashCode = (hashCode * 59) + this.EnumIntegerOnly.GetHashCode();
+                hashCode = (hashCode * 59) + this.EnumNumber.GetHashCode();
+                hashCode = (hashCode * 59) + this.OuterEnum.GetHashCode();
+                hashCode = (hashCode * 59) + this.OuterEnumInteger.GetHashCode();
+                hashCode = (hashCode * 59) + this.OuterEnumDefaultValue.GetHashCode();
+                hashCode = (hashCode * 59) + this.OuterEnumIntegerDefaultValue.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EquilateralTriangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
new file mode 100644
index 00000000000..ab16133fe4b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
@@ -0,0 +1,163 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// EquilateralTriangle
+    /// </summary>
+    [DataContract(Name = "EquilateralTriangle")]
+    public partial class EquilateralTriangle : IEquatable<EquilateralTriangle>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EquilateralTriangle" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected EquilateralTriangle()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="EquilateralTriangle" /> class.
+        /// </summary>
+        /// <param name="shapeType">shapeType (required).</param>
+        /// <param name="triangleType">triangleType (required).</param>
+        public EquilateralTriangle(string shapeType = default(string), string triangleType = default(string))
+        {
+            // to ensure "shapeType" is required (not null)
+            if (shapeType == null)
+            {
+                throw new ArgumentNullException("shapeType is a required property for EquilateralTriangle and cannot be null");
+            }
+            this.ShapeType = shapeType;
+            // to ensure "triangleType" is required (not null)
+            if (triangleType == null)
+            {
+                throw new ArgumentNullException("triangleType is a required property for EquilateralTriangle and cannot be null");
+            }
+            this.TriangleType = triangleType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ShapeType
+        /// </summary>
+        [DataMember(Name = "shapeType", IsRequired = true, EmitDefaultValue = true)]
+        public string ShapeType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets TriangleType
+        /// </summary>
+        [DataMember(Name = "triangleType", IsRequired = true, EmitDefaultValue = true)]
+        public string TriangleType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class EquilateralTriangle {\n");
+            sb.Append("  ShapeType: ").Append(ShapeType).Append("\n");
+            sb.Append("  TriangleType: ").Append(TriangleType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as EquilateralTriangle).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if EquilateralTriangle instances are equal
+        /// </summary>
+        /// <param name="input">Instance of EquilateralTriangle to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(EquilateralTriangle input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ShapeType != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShapeType.GetHashCode();
+                }
+                if (this.TriangleType != null)
+                {
+                    hashCode = (hashCode * 59) + this.TriangleType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/File.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/File.cs
new file mode 100644
index 00000000000..cf3b18a81c8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/File.cs
@@ -0,0 +1,133 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Must be named &#x60;File&#x60; for test.
+    /// </summary>
+    [DataContract(Name = "File")]
+    public partial class File : IEquatable<File>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="File" /> class.
+        /// </summary>
+        /// <param name="sourceURI">Test capitalization.</param>
+        public File(string sourceURI = default(string))
+        {
+            this.SourceURI = sourceURI;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Test capitalization
+        /// </summary>
+        /// <value>Test capitalization</value>
+        [DataMember(Name = "sourceURI", EmitDefaultValue = false)]
+        public string SourceURI { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class File {\n");
+            sb.Append("  SourceURI: ").Append(SourceURI).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as File).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if File instances are equal
+        /// </summary>
+        /// <param name="input">Instance of File to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(File input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.SourceURI != null)
+                {
+                    hashCode = (hashCode * 59) + this.SourceURI.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
new file mode 100644
index 00000000000..ae9d8e1c05a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// FileSchemaTestClass
+    /// </summary>
+    [DataContract(Name = "FileSchemaTestClass")]
+    public partial class FileSchemaTestClass : IEquatable<FileSchemaTestClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FileSchemaTestClass" /> class.
+        /// </summary>
+        /// <param name="file">file.</param>
+        /// <param name="files">files.</param>
+        public FileSchemaTestClass(File file = default(File), List<File> files = default(List<File>))
+        {
+            this.File = file;
+            this.Files = files;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets File
+        /// </summary>
+        [DataMember(Name = "file", EmitDefaultValue = false)]
+        public File File { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Files
+        /// </summary>
+        [DataMember(Name = "files", EmitDefaultValue = false)]
+        public List<File> Files { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class FileSchemaTestClass {\n");
+            sb.Append("  File: ").Append(File).Append("\n");
+            sb.Append("  Files: ").Append(Files).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as FileSchemaTestClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if FileSchemaTestClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of FileSchemaTestClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(FileSchemaTestClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.File != null)
+                {
+                    hashCode = (hashCode * 59) + this.File.GetHashCode();
+                }
+                if (this.Files != null)
+                {
+                    hashCode = (hashCode * 59) + this.Files.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Foo.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Foo.cs
new file mode 100644
index 00000000000..570e3de7f65
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Foo.cs
@@ -0,0 +1,133 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Foo
+    /// </summary>
+    [DataContract(Name = "Foo")]
+    public partial class Foo : IEquatable<Foo>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Foo" /> class.
+        /// </summary>
+        /// <param name="bar">bar (default to &quot;bar&quot;).</param>
+        public Foo(string bar = @"bar")
+        {
+            // use default value if no "bar" provided
+            this.Bar = bar ?? @"bar";
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Bar
+        /// </summary>
+        [DataMember(Name = "bar", EmitDefaultValue = false)]
+        public string Bar { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Foo {\n");
+            sb.Append("  Bar: ").Append(Bar).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Foo).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Foo instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Foo to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Foo input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Bar != null)
+                {
+                    hashCode = (hashCode * 59) + this.Bar.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs
new file mode 100644
index 00000000000..55cd8eb7482
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FooGetDefaultResponse.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// FooGetDefaultResponse
+    /// </summary>
+    [DataContract(Name = "_foo_get_default_response")]
+    public partial class FooGetDefaultResponse : IEquatable<FooGetDefaultResponse>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FooGetDefaultResponse" /> class.
+        /// </summary>
+        /// <param name="varString">varString.</param>
+        public FooGetDefaultResponse(Foo varString = default(Foo))
+        {
+            this.VarString = varString;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets VarString
+        /// </summary>
+        [DataMember(Name = "string", EmitDefaultValue = false)]
+        public Foo VarString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class FooGetDefaultResponse {\n");
+            sb.Append("  VarString: ").Append(VarString).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as FooGetDefaultResponse).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if FooGetDefaultResponse instances are equal
+        /// </summary>
+        /// <param name="input">Instance of FooGetDefaultResponse to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(FooGetDefaultResponse input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.VarString != null)
+                {
+                    hashCode = (hashCode * 59) + this.VarString.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FormatTest.cs
new file mode 100644
index 00000000000..8a1f7d62fa2
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FormatTest.cs
@@ -0,0 +1,484 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// FormatTest
+    /// </summary>
+    [DataContract(Name = "format_test")]
+    public partial class FormatTest : IEquatable<FormatTest>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FormatTest" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected FormatTest()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FormatTest" /> class.
+        /// </summary>
+        /// <param name="integer">integer.</param>
+        /// <param name="int32">int32.</param>
+        /// <param name="unsignedInteger">unsignedInteger.</param>
+        /// <param name="int64">int64.</param>
+        /// <param name="unsignedLong">unsignedLong.</param>
+        /// <param name="number">number (required).</param>
+        /// <param name="varFloat">varFloat.</param>
+        /// <param name="varDouble">varDouble.</param>
+        /// <param name="varDecimal">varDecimal.</param>
+        /// <param name="varString">varString.</param>
+        /// <param name="varByte">varByte (required).</param>
+        /// <param name="binary">binary.</param>
+        /// <param name="date">date (required).</param>
+        /// <param name="dateTime">dateTime.</param>
+        /// <param name="uuid">uuid.</param>
+        /// <param name="password">password (required).</param>
+        /// <param name="patternWithDigits">A string that is a 10 digit number. Can have leading zeros..</param>
+        /// <param name="patternWithDigitsAndDelimiter">A string starting with &#39;image_&#39; (case insensitive) and one to three digits following i.e. Image_01..</param>
+        /// <param name="patternWithBackslash">None.</param>
+        public FormatTest(int integer = default(int), int int32 = default(int), uint unsignedInteger = default(uint), long int64 = default(long), ulong unsignedLong = default(ulong), decimal number = default(decimal), float varFloat = default(float), double varDouble = default(double), decimal varDecimal = default(decimal), string varString = default(string), byte[] varByte = default(byte[]), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), Guid uuid = default(Guid), string password = default(string), string patternWithDigits = default(string), string patternWithDigitsAndDelimiter = default(string), string patternWithBackslash = default(string))
+        {
+            this.Number = number;
+            // to ensure "varByte" is required (not null)
+            if (varByte == null)
+            {
+                throw new ArgumentNullException("varByte is a required property for FormatTest and cannot be null");
+            }
+            this.VarByte = varByte;
+            this.Date = date;
+            // to ensure "password" is required (not null)
+            if (password == null)
+            {
+                throw new ArgumentNullException("password is a required property for FormatTest and cannot be null");
+            }
+            this.Password = password;
+            this.Integer = integer;
+            this.Int32 = int32;
+            this.UnsignedInteger = unsignedInteger;
+            this.Int64 = int64;
+            this.UnsignedLong = unsignedLong;
+            this.VarFloat = varFloat;
+            this.VarDouble = varDouble;
+            this.VarDecimal = varDecimal;
+            this.VarString = varString;
+            this.Binary = binary;
+            this.DateTime = dateTime;
+            this.Uuid = uuid;
+            this.PatternWithDigits = patternWithDigits;
+            this.PatternWithDigitsAndDelimiter = patternWithDigitsAndDelimiter;
+            this.PatternWithBackslash = patternWithBackslash;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Integer
+        /// </summary>
+        [DataMember(Name = "integer", EmitDefaultValue = false)]
+        public int Integer { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Int32
+        /// </summary>
+        [DataMember(Name = "int32", EmitDefaultValue = false)]
+        public int Int32 { get; set; }
+
+        /// <summary>
+        /// Gets or Sets UnsignedInteger
+        /// </summary>
+        [DataMember(Name = "unsigned_integer", EmitDefaultValue = false)]
+        public uint UnsignedInteger { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Int64
+        /// </summary>
+        [DataMember(Name = "int64", EmitDefaultValue = false)]
+        public long Int64 { get; set; }
+
+        /// <summary>
+        /// Gets or Sets UnsignedLong
+        /// </summary>
+        [DataMember(Name = "unsigned_long", EmitDefaultValue = false)]
+        public ulong UnsignedLong { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Number
+        /// </summary>
+        [DataMember(Name = "number", IsRequired = true, EmitDefaultValue = true)]
+        public decimal Number { get; set; }
+
+        /// <summary>
+        /// Gets or Sets VarFloat
+        /// </summary>
+        [DataMember(Name = "float", EmitDefaultValue = false)]
+        public float VarFloat { get; set; }
+
+        /// <summary>
+        /// Gets or Sets VarDouble
+        /// </summary>
+        [DataMember(Name = "double", EmitDefaultValue = false)]
+        public double VarDouble { get; set; }
+
+        /// <summary>
+        /// Gets or Sets VarDecimal
+        /// </summary>
+        [DataMember(Name = "decimal", EmitDefaultValue = false)]
+        public decimal VarDecimal { get; set; }
+
+        /// <summary>
+        /// Gets or Sets VarString
+        /// </summary>
+        [DataMember(Name = "string", EmitDefaultValue = false)]
+        public string VarString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets VarByte
+        /// </summary>
+        [DataMember(Name = "byte", IsRequired = true, EmitDefaultValue = true)]
+        public byte[] VarByte { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Binary
+        /// </summary>
+        [DataMember(Name = "binary", EmitDefaultValue = false)]
+        public System.IO.Stream Binary { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Date
+        /// </summary>
+        /// <example>Sun Feb 02 00:00:00 UTC 2020</example>
+        [DataMember(Name = "date", IsRequired = true, EmitDefaultValue = true)]
+        [JsonConverter(typeof(OpenAPIDateConverter))]
+        public DateTime Date { get; set; }
+
+        /// <summary>
+        /// Gets or Sets DateTime
+        /// </summary>
+        /// <example>2007-12-03T10:15:30+01:00</example>
+        [DataMember(Name = "dateTime", EmitDefaultValue = false)]
+        public DateTime DateTime { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Uuid
+        /// </summary>
+        /// <example>72f98069-206d-4f12-9f12-3d1e525a8e84</example>
+        [DataMember(Name = "uuid", EmitDefaultValue = false)]
+        public Guid Uuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Password
+        /// </summary>
+        [DataMember(Name = "password", IsRequired = true, EmitDefaultValue = true)]
+        public string Password { get; set; }
+
+        /// <summary>
+        /// A string that is a 10 digit number. Can have leading zeros.
+        /// </summary>
+        /// <value>A string that is a 10 digit number. Can have leading zeros.</value>
+        [DataMember(Name = "pattern_with_digits", EmitDefaultValue = false)]
+        public string PatternWithDigits { get; set; }
+
+        /// <summary>
+        /// A string starting with &#39;image_&#39; (case insensitive) and one to three digits following i.e. Image_01.
+        /// </summary>
+        /// <value>A string starting with &#39;image_&#39; (case insensitive) and one to three digits following i.e. Image_01.</value>
+        [DataMember(Name = "pattern_with_digits_and_delimiter", EmitDefaultValue = false)]
+        public string PatternWithDigitsAndDelimiter { get; set; }
+
+        /// <summary>
+        /// None
+        /// </summary>
+        /// <value>None</value>
+        [DataMember(Name = "pattern_with_backslash", EmitDefaultValue = false)]
+        public string PatternWithBackslash { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class FormatTest {\n");
+            sb.Append("  Integer: ").Append(Integer).Append("\n");
+            sb.Append("  Int32: ").Append(Int32).Append("\n");
+            sb.Append("  UnsignedInteger: ").Append(UnsignedInteger).Append("\n");
+            sb.Append("  Int64: ").Append(Int64).Append("\n");
+            sb.Append("  UnsignedLong: ").Append(UnsignedLong).Append("\n");
+            sb.Append("  Number: ").Append(Number).Append("\n");
+            sb.Append("  VarFloat: ").Append(VarFloat).Append("\n");
+            sb.Append("  VarDouble: ").Append(VarDouble).Append("\n");
+            sb.Append("  VarDecimal: ").Append(VarDecimal).Append("\n");
+            sb.Append("  VarString: ").Append(VarString).Append("\n");
+            sb.Append("  VarByte: ").Append(VarByte).Append("\n");
+            sb.Append("  Binary: ").Append(Binary).Append("\n");
+            sb.Append("  Date: ").Append(Date).Append("\n");
+            sb.Append("  DateTime: ").Append(DateTime).Append("\n");
+            sb.Append("  Uuid: ").Append(Uuid).Append("\n");
+            sb.Append("  Password: ").Append(Password).Append("\n");
+            sb.Append("  PatternWithDigits: ").Append(PatternWithDigits).Append("\n");
+            sb.Append("  PatternWithDigitsAndDelimiter: ").Append(PatternWithDigitsAndDelimiter).Append("\n");
+            sb.Append("  PatternWithBackslash: ").Append(PatternWithBackslash).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as FormatTest).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if FormatTest instances are equal
+        /// </summary>
+        /// <param name="input">Instance of FormatTest to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(FormatTest input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Integer.GetHashCode();
+                hashCode = (hashCode * 59) + this.Int32.GetHashCode();
+                hashCode = (hashCode * 59) + this.UnsignedInteger.GetHashCode();
+                hashCode = (hashCode * 59) + this.Int64.GetHashCode();
+                hashCode = (hashCode * 59) + this.UnsignedLong.GetHashCode();
+                hashCode = (hashCode * 59) + this.Number.GetHashCode();
+                hashCode = (hashCode * 59) + this.VarFloat.GetHashCode();
+                hashCode = (hashCode * 59) + this.VarDouble.GetHashCode();
+                hashCode = (hashCode * 59) + this.VarDecimal.GetHashCode();
+                if (this.VarString != null)
+                {
+                    hashCode = (hashCode * 59) + this.VarString.GetHashCode();
+                }
+                if (this.VarByte != null)
+                {
+                    hashCode = (hashCode * 59) + this.VarByte.GetHashCode();
+                }
+                if (this.Binary != null)
+                {
+                    hashCode = (hashCode * 59) + this.Binary.GetHashCode();
+                }
+                if (this.Date != null)
+                {
+                    hashCode = (hashCode * 59) + this.Date.GetHashCode();
+                }
+                if (this.DateTime != null)
+                {
+                    hashCode = (hashCode * 59) + this.DateTime.GetHashCode();
+                }
+                if (this.Uuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.Uuid.GetHashCode();
+                }
+                if (this.Password != null)
+                {
+                    hashCode = (hashCode * 59) + this.Password.GetHashCode();
+                }
+                if (this.PatternWithDigits != null)
+                {
+                    hashCode = (hashCode * 59) + this.PatternWithDigits.GetHashCode();
+                }
+                if (this.PatternWithDigitsAndDelimiter != null)
+                {
+                    hashCode = (hashCode * 59) + this.PatternWithDigitsAndDelimiter.GetHashCode();
+                }
+                if (this.PatternWithBackslash != null)
+                {
+                    hashCode = (hashCode * 59) + this.PatternWithBackslash.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            // Integer (int) maximum
+            if (this.Integer > (int)100)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Integer, must be a value less than or equal to 100.", new [] { "Integer" });
+            }
+
+            // Integer (int) minimum
+            if (this.Integer < (int)10)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Integer, must be a value greater than or equal to 10.", new [] { "Integer" });
+            }
+
+            // Int32 (int) maximum
+            if (this.Int32 > (int)200)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Int32, must be a value less than or equal to 200.", new [] { "Int32" });
+            }
+
+            // Int32 (int) minimum
+            if (this.Int32 < (int)20)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Int32, must be a value greater than or equal to 20.", new [] { "Int32" });
+            }
+
+            // UnsignedInteger (uint) maximum
+            if (this.UnsignedInteger > (uint)200)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for UnsignedInteger, must be a value less than or equal to 200.", new [] { "UnsignedInteger" });
+            }
+
+            // UnsignedInteger (uint) minimum
+            if (this.UnsignedInteger < (uint)20)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for UnsignedInteger, must be a value greater than or equal to 20.", new [] { "UnsignedInteger" });
+            }
+
+            // Number (decimal) maximum
+            if (this.Number > (decimal)543.2)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Number, must be a value less than or equal to 543.2.", new [] { "Number" });
+            }
+
+            // Number (decimal) minimum
+            if (this.Number < (decimal)32.1)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Number, must be a value greater than or equal to 32.1.", new [] { "Number" });
+            }
+
+            // VarFloat (float) maximum
+            if (this.VarFloat > (float)987.6)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for VarFloat, must be a value less than or equal to 987.6.", new [] { "VarFloat" });
+            }
+
+            // VarFloat (float) minimum
+            if (this.VarFloat < (float)54.3)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for VarFloat, must be a value greater than or equal to 54.3.", new [] { "VarFloat" });
+            }
+
+            // VarDouble (double) maximum
+            if (this.VarDouble > (double)123.4)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for VarDouble, must be a value less than or equal to 123.4.", new [] { "VarDouble" });
+            }
+
+            // VarDouble (double) minimum
+            if (this.VarDouble < (double)67.8)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for VarDouble, must be a value greater than or equal to 67.8.", new [] { "VarDouble" });
+            }
+
+            if (this.VarString != null) {
+                // VarString (string) pattern
+                Regex regexVarString = new Regex(@"[a-z]", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
+                if (!regexVarString.Match(this.VarString).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for VarString, must match a pattern of " + regexVarString, new [] { "VarString" });
+                }
+            }
+
+            // Password (string) maxLength
+            if (this.Password != null && this.Password.Length > 64)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Password, length must be less than 64.", new [] { "Password" });
+            }
+
+            // Password (string) minLength
+            if (this.Password != null && this.Password.Length < 10)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Password, length must be greater than 10.", new [] { "Password" });
+            }
+
+            if (this.PatternWithDigits != null) {
+                // PatternWithDigits (string) pattern
+                Regex regexPatternWithDigits = new Regex(@"^\d{10}$", RegexOptions.CultureInvariant);
+                if (!regexPatternWithDigits.Match(this.PatternWithDigits).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for PatternWithDigits, must match a pattern of " + regexPatternWithDigits, new [] { "PatternWithDigits" });
+                }
+            }
+
+            if (this.PatternWithDigitsAndDelimiter != null) {
+                // PatternWithDigitsAndDelimiter (string) pattern
+                Regex regexPatternWithDigitsAndDelimiter = new Regex(@"^image_\d{1,3}$", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
+                if (!regexPatternWithDigitsAndDelimiter.Match(this.PatternWithDigitsAndDelimiter).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for PatternWithDigitsAndDelimiter, must match a pattern of " + regexPatternWithDigitsAndDelimiter, new [] { "PatternWithDigitsAndDelimiter" });
+                }
+            }
+
+            if (this.PatternWithBackslash != null) {
+                // PatternWithBackslash (string) pattern
+                Regex regexPatternWithBackslash = new Regex(@"^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\/([0-9]|[1-2][0-9]|3[0-2]))$", RegexOptions.CultureInvariant);
+                if (!regexPatternWithBackslash.Match(this.PatternWithBackslash).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for PatternWithBackslash, must match a pattern of " + regexPatternWithBackslash, new [] { "PatternWithBackslash" });
+                }
+            }
+
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Fruit.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Fruit.cs
new file mode 100644
index 00000000000..bdd22a90f80
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Fruit.cs
@@ -0,0 +1,291 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Fruit
+    /// </summary>
+    [JsonConverter(typeof(FruitJsonConverter))]
+    [DataContract(Name = "fruit")]
+    public partial class Fruit : AbstractOpenAPISchema, IEquatable<Fruit>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Fruit" /> class
+        /// with the <see cref="Apple" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Apple.</param>
+        public Fruit(Apple actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Fruit" /> class
+        /// with the <see cref="Banana" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Banana.</param>
+        public Fruit(Banana actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(Apple))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Banana))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: Apple, Banana");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Apple`. If the actual instance is not `Apple`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Apple</returns>
+        public Apple GetApple()
+        {
+            return (Apple)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Banana`. If the actual instance is not `Banana`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Banana</returns>
+        public Banana GetBanana()
+        {
+            return (Banana)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Fruit {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, Fruit.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of Fruit
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of Fruit</returns>
+        public static Fruit FromJson(string jsonString)
+        {
+            Fruit newFruit = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newFruit;
+            }
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Apple).GetProperty("AdditionalProperties") == null)
+                {
+                    newFruit = new Fruit(JsonConvert.DeserializeObject<Apple>(jsonString, Fruit.SerializerSettings));
+                }
+                else
+                {
+                    newFruit = new Fruit(JsonConvert.DeserializeObject<Apple>(jsonString, Fruit.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Apple");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Apple: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Banana).GetProperty("AdditionalProperties") == null)
+                {
+                    newFruit = new Fruit(JsonConvert.DeserializeObject<Banana>(jsonString, Fruit.SerializerSettings));
+                }
+                else
+                {
+                    newFruit = new Fruit(JsonConvert.DeserializeObject<Banana>(jsonString, Fruit.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Banana");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Banana: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newFruit;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Fruit).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Fruit instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Fruit to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Fruit input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for Fruit
+    /// </summary>
+    public class FruitJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(Fruit).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return Fruit.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FruitReq.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FruitReq.cs
new file mode 100644
index 00000000000..7d64b10bf22
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/FruitReq.cs
@@ -0,0 +1,300 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// FruitReq
+    /// </summary>
+    [JsonConverter(typeof(FruitReqJsonConverter))]
+    [DataContract(Name = "fruitReq")]
+    public partial class FruitReq : AbstractOpenAPISchema, IEquatable<FruitReq>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FruitReq" /> class.
+        /// </summary>
+        public FruitReq()
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FruitReq" /> class
+        /// with the <see cref="AppleReq" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of AppleReq.</param>
+        public FruitReq(AppleReq actualInstance)
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FruitReq" /> class
+        /// with the <see cref="BananaReq" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of BananaReq.</param>
+        public FruitReq(BananaReq actualInstance)
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance;
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(AppleReq))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(BananaReq))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: AppleReq, BananaReq");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `AppleReq`. If the actual instance is not `AppleReq`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of AppleReq</returns>
+        public AppleReq GetAppleReq()
+        {
+            return (AppleReq)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `BananaReq`. If the actual instance is not `BananaReq`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of BananaReq</returns>
+        public BananaReq GetBananaReq()
+        {
+            return (BananaReq)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class FruitReq {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, FruitReq.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of FruitReq
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of FruitReq</returns>
+        public static FruitReq FromJson(string jsonString)
+        {
+            FruitReq newFruitReq = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newFruitReq;
+            }
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(AppleReq).GetProperty("AdditionalProperties") == null)
+                {
+                    newFruitReq = new FruitReq(JsonConvert.DeserializeObject<AppleReq>(jsonString, FruitReq.SerializerSettings));
+                }
+                else
+                {
+                    newFruitReq = new FruitReq(JsonConvert.DeserializeObject<AppleReq>(jsonString, FruitReq.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("AppleReq");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into AppleReq: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(BananaReq).GetProperty("AdditionalProperties") == null)
+                {
+                    newFruitReq = new FruitReq(JsonConvert.DeserializeObject<BananaReq>(jsonString, FruitReq.SerializerSettings));
+                }
+                else
+                {
+                    newFruitReq = new FruitReq(JsonConvert.DeserializeObject<BananaReq>(jsonString, FruitReq.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("BananaReq");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into BananaReq: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newFruitReq;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as FruitReq).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if FruitReq instances are equal
+        /// </summary>
+        /// <param name="input">Instance of FruitReq to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(FruitReq input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for FruitReq
+    /// </summary>
+    public class FruitReqJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(FruitReq).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return FruitReq.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/GmFruit.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/GmFruit.cs
new file mode 100644
index 00000000000..9d97bc6177f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/GmFruit.cs
@@ -0,0 +1,264 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// GmFruit
+    /// </summary>
+    [JsonConverter(typeof(GmFruitJsonConverter))]
+    [DataContract(Name = "gmFruit")]
+    public partial class GmFruit : AbstractOpenAPISchema, IEquatable<GmFruit>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="GmFruit" /> class
+        /// with the <see cref="Apple" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Apple.</param>
+        public GmFruit(Apple actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "anyOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="GmFruit" /> class
+        /// with the <see cref="Banana" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Banana.</param>
+        public GmFruit(Banana actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "anyOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(Apple))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Banana))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: Apple, Banana");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Apple`. If the actual instance is not `Apple`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Apple</returns>
+        public Apple GetApple()
+        {
+            return (Apple)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Banana`. If the actual instance is not `Banana`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Banana</returns>
+        public Banana GetBanana()
+        {
+            return (Banana)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class GmFruit {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, GmFruit.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of GmFruit
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of GmFruit</returns>
+        public static GmFruit FromJson(string jsonString)
+        {
+            GmFruit newGmFruit = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newGmFruit;
+            }
+
+            try
+            {
+                newGmFruit = new GmFruit(JsonConvert.DeserializeObject<Apple>(jsonString, GmFruit.SerializerSettings));
+                // deserialization is considered successful at this point if no exception has been thrown.
+                return newGmFruit;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Apple: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                newGmFruit = new GmFruit(JsonConvert.DeserializeObject<Banana>(jsonString, GmFruit.SerializerSettings));
+                // deserialization is considered successful at this point if no exception has been thrown.
+                return newGmFruit;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Banana: {1}", jsonString, exception.ToString()));
+            }
+
+            // no match found, throw an exception
+            throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as GmFruit).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if GmFruit instances are equal
+        /// </summary>
+        /// <param name="input">Instance of GmFruit to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(GmFruit input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for GmFruit
+    /// </summary>
+    public class GmFruitJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(GmFruit).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return GmFruit.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/GrandparentAnimal.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
new file mode 100644
index 00000000000..8ca8d20eb0e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
@@ -0,0 +1,159 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// GrandparentAnimal
+    /// </summary>
+    [DataContract(Name = "GrandparentAnimal")]
+    [JsonConverter(typeof(JsonSubtypes), "PetType")]
+    [JsonSubtypes.KnownSubType(typeof(ChildCat), "ChildCat")]
+    [JsonSubtypes.KnownSubType(typeof(ParentPet), "ParentPet")]
+    public partial class GrandparentAnimal : IEquatable<GrandparentAnimal>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="GrandparentAnimal" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected GrandparentAnimal()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="GrandparentAnimal" /> class.
+        /// </summary>
+        /// <param name="petType">petType (required).</param>
+        public GrandparentAnimal(string petType = default(string))
+        {
+            // to ensure "petType" is required (not null)
+            if (petType == null)
+            {
+                throw new ArgumentNullException("petType is a required property for GrandparentAnimal and cannot be null");
+            }
+            this.PetType = petType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets PetType
+        /// </summary>
+        [DataMember(Name = "pet_type", IsRequired = true, EmitDefaultValue = true)]
+        public string PetType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class GrandparentAnimal {\n");
+            sb.Append("  PetType: ").Append(PetType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as GrandparentAnimal).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if GrandparentAnimal instances are equal
+        /// </summary>
+        /// <param name="input">Instance of GrandparentAnimal to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(GrandparentAnimal input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.PetType != null)
+                {
+                    hashCode = (hashCode * 59) + this.PetType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
new file mode 100644
index 00000000000..2d4a1cd404f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
@@ -0,0 +1,158 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// HasOnlyReadOnly
+    /// </summary>
+    [DataContract(Name = "hasOnlyReadOnly")]
+    public partial class HasOnlyReadOnly : IEquatable<HasOnlyReadOnly>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="HasOnlyReadOnly" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        public HasOnlyReadOnly()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Bar
+        /// </summary>
+        [DataMember(Name = "bar", EmitDefaultValue = false)]
+        public string Bar { get; private set; }
+
+        /// <summary>
+        /// Returns false as Bar should not be serialized given that it's read-only.
+        /// </summary>
+        /// <returns>false (boolean)</returns>
+        public bool ShouldSerializeBar()
+        {
+            return false;
+        }
+        /// <summary>
+        /// Gets or Sets Foo
+        /// </summary>
+        [DataMember(Name = "foo", EmitDefaultValue = false)]
+        public string Foo { get; private set; }
+
+        /// <summary>
+        /// Returns false as Foo should not be serialized given that it's read-only.
+        /// </summary>
+        /// <returns>false (boolean)</returns>
+        public bool ShouldSerializeFoo()
+        {
+            return false;
+        }
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class HasOnlyReadOnly {\n");
+            sb.Append("  Bar: ").Append(Bar).Append("\n");
+            sb.Append("  Foo: ").Append(Foo).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as HasOnlyReadOnly).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if HasOnlyReadOnly instances are equal
+        /// </summary>
+        /// <param name="input">Instance of HasOnlyReadOnly to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(HasOnlyReadOnly input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Bar != null)
+                {
+                    hashCode = (hashCode * 59) + this.Bar.GetHashCode();
+                }
+                if (this.Foo != null)
+                {
+                    hashCode = (hashCode * 59) + this.Foo.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/HealthCheckResult.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/HealthCheckResult.cs
new file mode 100644
index 00000000000..77ad8860aec
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/HealthCheckResult.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Just a string to inform instance is up and running. Make it nullable in hope to get it as pointer in generated model.
+    /// </summary>
+    [DataContract(Name = "HealthCheckResult")]
+    public partial class HealthCheckResult : IEquatable<HealthCheckResult>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="HealthCheckResult" /> class.
+        /// </summary>
+        /// <param name="nullableMessage">nullableMessage.</param>
+        public HealthCheckResult(string nullableMessage = default(string))
+        {
+            this.NullableMessage = nullableMessage;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets NullableMessage
+        /// </summary>
+        [DataMember(Name = "NullableMessage", EmitDefaultValue = true)]
+        public string NullableMessage { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class HealthCheckResult {\n");
+            sb.Append("  NullableMessage: ").Append(NullableMessage).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as HealthCheckResult).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if HealthCheckResult instances are equal
+        /// </summary>
+        /// <param name="input">Instance of HealthCheckResult to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(HealthCheckResult input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.NullableMessage != null)
+                {
+                    hashCode = (hashCode * 59) + this.NullableMessage.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
new file mode 100644
index 00000000000..3d5a1ff7ad8
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
@@ -0,0 +1,148 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// IsoscelesTriangle
+    /// </summary>
+    [DataContract(Name = "IsoscelesTriangle")]
+    public partial class IsoscelesTriangle : IEquatable<IsoscelesTriangle>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="IsoscelesTriangle" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected IsoscelesTriangle() { }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="IsoscelesTriangle" /> class.
+        /// </summary>
+        /// <param name="shapeType">shapeType (required).</param>
+        /// <param name="triangleType">triangleType (required).</param>
+        public IsoscelesTriangle(string shapeType = default(string), string triangleType = default(string))
+        {
+            // to ensure "shapeType" is required (not null)
+            if (shapeType == null)
+            {
+                throw new ArgumentNullException("shapeType is a required property for IsoscelesTriangle and cannot be null");
+            }
+            this.ShapeType = shapeType;
+            // to ensure "triangleType" is required (not null)
+            if (triangleType == null)
+            {
+                throw new ArgumentNullException("triangleType is a required property for IsoscelesTriangle and cannot be null");
+            }
+            this.TriangleType = triangleType;
+        }
+
+        /// <summary>
+        /// Gets or Sets ShapeType
+        /// </summary>
+        [DataMember(Name = "shapeType", IsRequired = true, EmitDefaultValue = true)]
+        public string ShapeType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets TriangleType
+        /// </summary>
+        [DataMember(Name = "triangleType", IsRequired = true, EmitDefaultValue = true)]
+        public string TriangleType { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class IsoscelesTriangle {\n");
+            sb.Append("  ShapeType: ").Append(ShapeType).Append("\n");
+            sb.Append("  TriangleType: ").Append(TriangleType).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as IsoscelesTriangle).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if IsoscelesTriangle instances are equal
+        /// </summary>
+        /// <param name="input">Instance of IsoscelesTriangle to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(IsoscelesTriangle input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ShapeType != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShapeType.GetHashCode();
+                }
+                if (this.TriangleType != null)
+                {
+                    hashCode = (hashCode * 59) + this.TriangleType.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/List.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/List.cs
new file mode 100644
index 00000000000..f02af3b0449
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/List.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// List
+    /// </summary>
+    [DataContract(Name = "List")]
+    public partial class List : IEquatable<List>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="List" /> class.
+        /// </summary>
+        /// <param name="var123List">var123List.</param>
+        public List(string var123List = default(string))
+        {
+            this.Var123List = var123List;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Var123List
+        /// </summary>
+        [DataMember(Name = "123-list", EmitDefaultValue = false)]
+        public string Var123List { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class List {\n");
+            sb.Append("  Var123List: ").Append(Var123List).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as List).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if List instances are equal
+        /// </summary>
+        /// <param name="input">Instance of List to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(List input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Var123List != null)
+                {
+                    hashCode = (hashCode * 59) + this.Var123List.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/LiteralStringClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/LiteralStringClass.cs
new file mode 100644
index 00000000000..3efdf123845
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/LiteralStringClass.cs
@@ -0,0 +1,147 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// LiteralStringClass
+    /// </summary>
+    [DataContract(Name = "LiteralStringClass")]
+    public partial class LiteralStringClass : IEquatable<LiteralStringClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LiteralStringClass" /> class.
+        /// </summary>
+        /// <param name="escapedLiteralString">escapedLiteralString (default to &quot;C:\\Users\\username&quot;).</param>
+        /// <param name="unescapedLiteralString">unescapedLiteralString (default to &quot;C:\Users\username&quot;).</param>
+        public LiteralStringClass(string escapedLiteralString = @"C:\\Users\\username", string unescapedLiteralString = @"C:\Users\username")
+        {
+            // use default value if no "escapedLiteralString" provided
+            this.EscapedLiteralString = escapedLiteralString ?? @"C:\\Users\\username";
+            // use default value if no "unescapedLiteralString" provided
+            this.UnescapedLiteralString = unescapedLiteralString ?? @"C:\Users\username";
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets EscapedLiteralString
+        /// </summary>
+        [DataMember(Name = "escapedLiteralString", EmitDefaultValue = false)]
+        public string EscapedLiteralString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets UnescapedLiteralString
+        /// </summary>
+        [DataMember(Name = "unescapedLiteralString", EmitDefaultValue = false)]
+        public string UnescapedLiteralString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class LiteralStringClass {\n");
+            sb.Append("  EscapedLiteralString: ").Append(EscapedLiteralString).Append("\n");
+            sb.Append("  UnescapedLiteralString: ").Append(UnescapedLiteralString).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as LiteralStringClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if LiteralStringClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of LiteralStringClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(LiteralStringClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.EscapedLiteralString != null)
+                {
+                    hashCode = (hashCode * 59) + this.EscapedLiteralString.GetHashCode();
+                }
+                if (this.UnescapedLiteralString != null)
+                {
+                    hashCode = (hashCode * 59) + this.UnescapedLiteralString.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Mammal.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Mammal.cs
new file mode 100644
index 00000000000..39a999e581c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Mammal.cs
@@ -0,0 +1,364 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Mammal
+    /// </summary>
+    [JsonConverter(typeof(MammalJsonConverter))]
+    [DataContract(Name = "mammal")]
+    public partial class Mammal : AbstractOpenAPISchema, IEquatable<Mammal>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Mammal" /> class
+        /// with the <see cref="Whale" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Whale.</param>
+        public Mammal(Whale actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Mammal" /> class
+        /// with the <see cref="Zebra" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Zebra.</param>
+        public Mammal(Zebra actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Mammal" /> class
+        /// with the <see cref="Pig" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Pig.</param>
+        public Mammal(Pig actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(Pig))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Whale))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Zebra))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: Pig, Whale, Zebra");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Whale`. If the actual instance is not `Whale`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Whale</returns>
+        public Whale GetWhale()
+        {
+            return (Whale)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Zebra`. If the actual instance is not `Zebra`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Zebra</returns>
+        public Zebra GetZebra()
+        {
+            return (Zebra)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Pig`. If the actual instance is not `Pig`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Pig</returns>
+        public Pig GetPig()
+        {
+            return (Pig)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Mammal {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, Mammal.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of Mammal
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of Mammal</returns>
+        public static Mammal FromJson(string jsonString)
+        {
+            Mammal newMammal = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newMammal;
+            }
+
+            try
+            {
+                var discriminatorObj = JObject.Parse(jsonString)["className"];
+                string discriminatorValue =  discriminatorObj == null ?string.Empty :discriminatorObj.ToString();
+                switch (discriminatorValue)
+                {
+                    case "Pig":
+                        newMammal = new Mammal(JsonConvert.DeserializeObject<Pig>(jsonString, Mammal.AdditionalPropertiesSerializerSettings));
+                        return newMammal;
+                    case "whale":
+                        newMammal = new Mammal(JsonConvert.DeserializeObject<Whale>(jsonString, Mammal.AdditionalPropertiesSerializerSettings));
+                        return newMammal;
+                    case "zebra":
+                        newMammal = new Mammal(JsonConvert.DeserializeObject<Zebra>(jsonString, Mammal.AdditionalPropertiesSerializerSettings));
+                        return newMammal;
+                    default:
+                        System.Diagnostics.Debug.WriteLine(string.Format("Failed to lookup discriminator value `{0}` for Mammal. Possible values: Pig whale zebra", discriminatorValue));
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to parse the json data : `{0}` {1}", jsonString, ex.ToString()));
+            }
+
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Pig).GetProperty("AdditionalProperties") == null)
+                {
+                    newMammal = new Mammal(JsonConvert.DeserializeObject<Pig>(jsonString, Mammal.SerializerSettings));
+                }
+                else
+                {
+                    newMammal = new Mammal(JsonConvert.DeserializeObject<Pig>(jsonString, Mammal.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Pig");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Pig: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Whale).GetProperty("AdditionalProperties") == null)
+                {
+                    newMammal = new Mammal(JsonConvert.DeserializeObject<Whale>(jsonString, Mammal.SerializerSettings));
+                }
+                else
+                {
+                    newMammal = new Mammal(JsonConvert.DeserializeObject<Whale>(jsonString, Mammal.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Whale");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Whale: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Zebra).GetProperty("AdditionalProperties") == null)
+                {
+                    newMammal = new Mammal(JsonConvert.DeserializeObject<Zebra>(jsonString, Mammal.SerializerSettings));
+                }
+                else
+                {
+                    newMammal = new Mammal(JsonConvert.DeserializeObject<Zebra>(jsonString, Mammal.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Zebra");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Zebra: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newMammal;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Mammal).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Mammal instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Mammal to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Mammal input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for Mammal
+    /// </summary>
+    public class MammalJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(Mammal).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return Mammal.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/MapTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/MapTest.cs
new file mode 100644
index 00000000000..3c36c57d1c9
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/MapTest.cs
@@ -0,0 +1,190 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// MapTest
+    /// </summary>
+    [DataContract(Name = "MapTest")]
+    public partial class MapTest : IEquatable<MapTest>, IValidatableObject
+    {
+        /// <summary>
+        /// Defines Inner
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum InnerEnum
+        {
+            /// <summary>
+            /// Enum UPPER for value: UPPER
+            /// </summary>
+            [EnumMember(Value = "UPPER")]
+            UPPER = 1,
+
+            /// <summary>
+            /// Enum Lower for value: lower
+            /// </summary>
+            [EnumMember(Value = "lower")]
+            Lower = 2
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MapTest" /> class.
+        /// </summary>
+        /// <param name="mapMapOfString">mapMapOfString.</param>
+        /// <param name="mapOfEnumString">mapOfEnumString.</param>
+        /// <param name="directMap">directMap.</param>
+        /// <param name="indirectMap">indirectMap.</param>
+        public MapTest(Dictionary<string, Dictionary<string, string>> mapMapOfString = default(Dictionary<string, Dictionary<string, string>>), Dictionary<string, InnerEnum> mapOfEnumString = default(Dictionary<string, InnerEnum>), Dictionary<string, bool> directMap = default(Dictionary<string, bool>), Dictionary<string, bool> indirectMap = default(Dictionary<string, bool>))
+        {
+            this.MapMapOfString = mapMapOfString;
+            this.MapOfEnumString = mapOfEnumString;
+            this.DirectMap = directMap;
+            this.IndirectMap = indirectMap;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets MapMapOfString
+        /// </summary>
+        [DataMember(Name = "map_map_of_string", EmitDefaultValue = false)]
+        public Dictionary<string, Dictionary<string, string>> MapMapOfString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MapOfEnumString
+        /// </summary>
+        [DataMember(Name = "map_of_enum_string", EmitDefaultValue = false)]
+        public Dictionary<string, MapTest.InnerEnum> MapOfEnumString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets DirectMap
+        /// </summary>
+        [DataMember(Name = "direct_map", EmitDefaultValue = false)]
+        public Dictionary<string, bool> DirectMap { get; set; }
+
+        /// <summary>
+        /// Gets or Sets IndirectMap
+        /// </summary>
+        [DataMember(Name = "indirect_map", EmitDefaultValue = false)]
+        public Dictionary<string, bool> IndirectMap { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class MapTest {\n");
+            sb.Append("  MapMapOfString: ").Append(MapMapOfString).Append("\n");
+            sb.Append("  MapOfEnumString: ").Append(MapOfEnumString).Append("\n");
+            sb.Append("  DirectMap: ").Append(DirectMap).Append("\n");
+            sb.Append("  IndirectMap: ").Append(IndirectMap).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as MapTest).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if MapTest instances are equal
+        /// </summary>
+        /// <param name="input">Instance of MapTest to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(MapTest input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.MapMapOfString != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapMapOfString.GetHashCode();
+                }
+                if (this.MapOfEnumString != null)
+                {
+                    hashCode = (hashCode * 59) + this.MapOfEnumString.GetHashCode();
+                }
+                if (this.DirectMap != null)
+                {
+                    hashCode = (hashCode * 59) + this.DirectMap.GetHashCode();
+                }
+                if (this.IndirectMap != null)
+                {
+                    hashCode = (hashCode * 59) + this.IndirectMap.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
new file mode 100644
index 00000000000..ec3e8e7b68c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
@@ -0,0 +1,180 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// MixedPropertiesAndAdditionalPropertiesClass
+    /// </summary>
+    [DataContract(Name = "MixedPropertiesAndAdditionalPropertiesClass")]
+    public partial class MixedPropertiesAndAdditionalPropertiesClass : IEquatable<MixedPropertiesAndAdditionalPropertiesClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MixedPropertiesAndAdditionalPropertiesClass" /> class.
+        /// </summary>
+        /// <param name="uuidWithPattern">uuidWithPattern.</param>
+        /// <param name="uuid">uuid.</param>
+        /// <param name="dateTime">dateTime.</param>
+        /// <param name="map">map.</param>
+        public MixedPropertiesAndAdditionalPropertiesClass(Guid uuidWithPattern = default(Guid), Guid uuid = default(Guid), DateTime dateTime = default(DateTime), Dictionary<string, Animal> map = default(Dictionary<string, Animal>))
+        {
+            this.UuidWithPattern = uuidWithPattern;
+            this.Uuid = uuid;
+            this.DateTime = dateTime;
+            this.Map = map;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets UuidWithPattern
+        /// </summary>
+        [DataMember(Name = "uuid_with_pattern", EmitDefaultValue = false)]
+        public Guid UuidWithPattern { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Uuid
+        /// </summary>
+        [DataMember(Name = "uuid", EmitDefaultValue = false)]
+        public Guid Uuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets DateTime
+        /// </summary>
+        [DataMember(Name = "dateTime", EmitDefaultValue = false)]
+        public DateTime DateTime { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Map
+        /// </summary>
+        [DataMember(Name = "map", EmitDefaultValue = false)]
+        public Dictionary<string, Animal> Map { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class MixedPropertiesAndAdditionalPropertiesClass {\n");
+            sb.Append("  UuidWithPattern: ").Append(UuidWithPattern).Append("\n");
+            sb.Append("  Uuid: ").Append(Uuid).Append("\n");
+            sb.Append("  DateTime: ").Append(DateTime).Append("\n");
+            sb.Append("  Map: ").Append(Map).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as MixedPropertiesAndAdditionalPropertiesClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if MixedPropertiesAndAdditionalPropertiesClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of MixedPropertiesAndAdditionalPropertiesClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(MixedPropertiesAndAdditionalPropertiesClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.UuidWithPattern != null)
+                {
+                    hashCode = (hashCode * 59) + this.UuidWithPattern.GetHashCode();
+                }
+                if (this.Uuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.Uuid.GetHashCode();
+                }
+                if (this.DateTime != null)
+                {
+                    hashCode = (hashCode * 59) + this.DateTime.GetHashCode();
+                }
+                if (this.Map != null)
+                {
+                    hashCode = (hashCode * 59) + this.Map.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            if (this.UuidWithPattern != null) {
+                // UuidWithPattern (Guid) pattern
+                Regex regexUuidWithPattern = new Regex(@"[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}", RegexOptions.CultureInvariant);
+                if (!regexUuidWithPattern.Match(this.UuidWithPattern.ToString()).Success)
+                {
+                    yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for UuidWithPattern, must match a pattern of " + regexUuidWithPattern, new [] { "UuidWithPattern" });
+                }
+            }
+
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Model200Response.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Model200Response.cs
new file mode 100644
index 00000000000..6e5acdf9e69
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Model200Response.cs
@@ -0,0 +1,142 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Model for testing model name starting with number
+    /// </summary>
+    [DataContract(Name = "200_response")]
+    public partial class Model200Response : IEquatable<Model200Response>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Model200Response" /> class.
+        /// </summary>
+        /// <param name="name">name.</param>
+        /// <param name="varClass">varClass.</param>
+        public Model200Response(int name = default(int), string varClass = default(string))
+        {
+            this.Name = name;
+            this.VarClass = varClass;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", EmitDefaultValue = false)]
+        public int Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets VarClass
+        /// </summary>
+        [DataMember(Name = "class", EmitDefaultValue = false)]
+        public string VarClass { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Model200Response {\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  VarClass: ").Append(VarClass).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Model200Response).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Model200Response instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Model200Response to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Model200Response input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Name.GetHashCode();
+                if (this.VarClass != null)
+                {
+                    hashCode = (hashCode * 59) + this.VarClass.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ModelClient.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ModelClient.cs
new file mode 100644
index 00000000000..59c8be24d66
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ModelClient.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ModelClient
+    /// </summary>
+    [DataContract(Name = "varClient")]
+    public partial class ModelClient : IEquatable<ModelClient>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ModelClient" /> class.
+        /// </summary>
+        /// <param name="varClient">varClient.</param>
+        public ModelClient(string varClient = default(string))
+        {
+            this.VarClient = varClient;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets VarClient
+        /// </summary>
+        [DataMember(Name = "client", EmitDefaultValue = false)]
+        public string VarClient { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ModelClient {\n");
+            sb.Append("  VarClient: ").Append(VarClient).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ModelClient).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ModelClient instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ModelClient to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ModelClient input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.VarClient != null)
+                {
+                    hashCode = (hashCode * 59) + this.VarClient.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Name.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Name.cs
new file mode 100644
index 00000000000..e741caa493d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Name.cs
@@ -0,0 +1,182 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Model for testing model name same as property name
+    /// </summary>
+    [DataContract(Name = "Name")]
+    public partial class Name : IEquatable<Name>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Name" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Name()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Name" /> class.
+        /// </summary>
+        /// <param name="varName">varName (required).</param>
+        /// <param name="property">property.</param>
+        public Name(int varName = default(int), string property = default(string))
+        {
+            this.VarName = varName;
+            this.Property = property;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets VarName
+        /// </summary>
+        [DataMember(Name = "name", IsRequired = true, EmitDefaultValue = true)]
+        public int VarName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets SnakeCase
+        /// </summary>
+        [DataMember(Name = "snake_case", EmitDefaultValue = false)]
+        public int SnakeCase { get; private set; }
+
+        /// <summary>
+        /// Returns false as SnakeCase should not be serialized given that it's read-only.
+        /// </summary>
+        /// <returns>false (boolean)</returns>
+        public bool ShouldSerializeSnakeCase()
+        {
+            return false;
+        }
+        /// <summary>
+        /// Gets or Sets Property
+        /// </summary>
+        [DataMember(Name = "property", EmitDefaultValue = false)]
+        public string Property { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Var123Number
+        /// </summary>
+        [DataMember(Name = "123Number", EmitDefaultValue = false)]
+        public int Var123Number { get; private set; }
+
+        /// <summary>
+        /// Returns false as Var123Number should not be serialized given that it's read-only.
+        /// </summary>
+        /// <returns>false (boolean)</returns>
+        public bool ShouldSerializeVar123Number()
+        {
+            return false;
+        }
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Name {\n");
+            sb.Append("  VarName: ").Append(VarName).Append("\n");
+            sb.Append("  SnakeCase: ").Append(SnakeCase).Append("\n");
+            sb.Append("  Property: ").Append(Property).Append("\n");
+            sb.Append("  Var123Number: ").Append(Var123Number).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Name).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Name instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Name to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Name input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.VarName.GetHashCode();
+                hashCode = (hashCode * 59) + this.SnakeCase.GetHashCode();
+                if (this.Property != null)
+                {
+                    hashCode = (hashCode * 59) + this.Property.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.Var123Number.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs
new file mode 100644
index 00000000000..b2573f9bb53
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NotificationtestGetElementsV1ResponseMPayload.cs
@@ -0,0 +1,155 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// NotificationtestGetElementsV1ResponseMPayload
+    /// </summary>
+    [DataContract(Name = "notificationtest-getElements-v1-Response-mPayload")]
+    public partial class NotificationtestGetElementsV1ResponseMPayload : IEquatable<NotificationtestGetElementsV1ResponseMPayload>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NotificationtestGetElementsV1ResponseMPayload" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected NotificationtestGetElementsV1ResponseMPayload()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NotificationtestGetElementsV1ResponseMPayload" /> class.
+        /// </summary>
+        /// <param name="pkiNotificationtestID">pkiNotificationtestID (required).</param>
+        /// <param name="aObjVariableobject">aObjVariableobject (required).</param>
+        public NotificationtestGetElementsV1ResponseMPayload(int pkiNotificationtestID = default(int), List<Dictionary<string, Object>> aObjVariableobject = default(List<Dictionary<string, Object>>))
+        {
+            this.PkiNotificationtestID = pkiNotificationtestID;
+            // to ensure "aObjVariableobject" is required (not null)
+            if (aObjVariableobject == null)
+            {
+                throw new ArgumentNullException("aObjVariableobject is a required property for NotificationtestGetElementsV1ResponseMPayload and cannot be null");
+            }
+            this.AObjVariableobject = aObjVariableobject;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets PkiNotificationtestID
+        /// </summary>
+        [DataMember(Name = "pkiNotificationtestID", IsRequired = true, EmitDefaultValue = true)]
+        public int PkiNotificationtestID { get; set; }
+
+        /// <summary>
+        /// Gets or Sets AObjVariableobject
+        /// </summary>
+        [DataMember(Name = "a_objVariableobject", IsRequired = true, EmitDefaultValue = true)]
+        public List<Dictionary<string, Object>> AObjVariableobject { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class NotificationtestGetElementsV1ResponseMPayload {\n");
+            sb.Append("  PkiNotificationtestID: ").Append(PkiNotificationtestID).Append("\n");
+            sb.Append("  AObjVariableobject: ").Append(AObjVariableobject).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as NotificationtestGetElementsV1ResponseMPayload).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if NotificationtestGetElementsV1ResponseMPayload instances are equal
+        /// </summary>
+        /// <param name="input">Instance of NotificationtestGetElementsV1ResponseMPayload to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(NotificationtestGetElementsV1ResponseMPayload input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.PkiNotificationtestID.GetHashCode();
+                if (this.AObjVariableobject != null)
+                {
+                    hashCode = (hashCode * 59) + this.AObjVariableobject.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableClass.cs
new file mode 100644
index 00000000000..919ed331163
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableClass.cs
@@ -0,0 +1,287 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// NullableClass
+    /// </summary>
+    [DataContract(Name = "NullableClass")]
+    public partial class NullableClass : Dictionary<String, Object>, IEquatable<NullableClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NullableClass" /> class.
+        /// </summary>
+        /// <param name="integerProp">integerProp.</param>
+        /// <param name="numberProp">numberProp.</param>
+        /// <param name="booleanProp">booleanProp.</param>
+        /// <param name="stringProp">stringProp.</param>
+        /// <param name="dateProp">dateProp.</param>
+        /// <param name="datetimeProp">datetimeProp.</param>
+        /// <param name="arrayNullableProp">arrayNullableProp.</param>
+        /// <param name="arrayAndItemsNullableProp">arrayAndItemsNullableProp.</param>
+        /// <param name="arrayItemsNullable">arrayItemsNullable.</param>
+        /// <param name="objectNullableProp">objectNullableProp.</param>
+        /// <param name="objectAndItemsNullableProp">objectAndItemsNullableProp.</param>
+        /// <param name="objectItemsNullable">objectItemsNullable.</param>
+        public NullableClass(int? integerProp = default(int?), decimal? numberProp = default(decimal?), bool? booleanProp = default(bool?), string stringProp = default(string), DateTime? dateProp = default(DateTime?), DateTime? datetimeProp = default(DateTime?), List<Object> arrayNullableProp = default(List<Object>), List<Object> arrayAndItemsNullableProp = default(List<Object>), List<Object> arrayItemsNullable = default(List<Object>), Dictionary<string, Object> objectNullableProp = default(Dictionary<string, Object>), Dictionary<string, Object> objectAndItemsNullableProp = default(Dictionary<string, Object>), Dictionary<string, Object> objectItemsNullable = default(Dictionary<string, Object>)) : base()
+        {
+            this.IntegerProp = integerProp;
+            this.NumberProp = numberProp;
+            this.BooleanProp = booleanProp;
+            this.StringProp = stringProp;
+            this.DateProp = dateProp;
+            this.DatetimeProp = datetimeProp;
+            this.ArrayNullableProp = arrayNullableProp;
+            this.ArrayAndItemsNullableProp = arrayAndItemsNullableProp;
+            this.ArrayItemsNullable = arrayItemsNullable;
+            this.ObjectNullableProp = objectNullableProp;
+            this.ObjectAndItemsNullableProp = objectAndItemsNullableProp;
+            this.ObjectItemsNullable = objectItemsNullable;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets IntegerProp
+        /// </summary>
+        [DataMember(Name = "integer_prop", EmitDefaultValue = true)]
+        public int? IntegerProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NumberProp
+        /// </summary>
+        [DataMember(Name = "number_prop", EmitDefaultValue = true)]
+        public decimal? NumberProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets BooleanProp
+        /// </summary>
+        [DataMember(Name = "boolean_prop", EmitDefaultValue = true)]
+        public bool? BooleanProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets StringProp
+        /// </summary>
+        [DataMember(Name = "string_prop", EmitDefaultValue = true)]
+        public string StringProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets DateProp
+        /// </summary>
+        [DataMember(Name = "date_prop", EmitDefaultValue = true)]
+        [JsonConverter(typeof(OpenAPIDateConverter))]
+        public DateTime? DateProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets DatetimeProp
+        /// </summary>
+        [DataMember(Name = "datetime_prop", EmitDefaultValue = true)]
+        public DateTime? DatetimeProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ArrayNullableProp
+        /// </summary>
+        [DataMember(Name = "array_nullable_prop", EmitDefaultValue = true)]
+        public List<Object> ArrayNullableProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ArrayAndItemsNullableProp
+        /// </summary>
+        [DataMember(Name = "array_and_items_nullable_prop", EmitDefaultValue = true)]
+        public List<Object> ArrayAndItemsNullableProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ArrayItemsNullable
+        /// </summary>
+        [DataMember(Name = "array_items_nullable", EmitDefaultValue = false)]
+        public List<Object> ArrayItemsNullable { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ObjectNullableProp
+        /// </summary>
+        [DataMember(Name = "object_nullable_prop", EmitDefaultValue = true)]
+        public Dictionary<string, Object> ObjectNullableProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ObjectAndItemsNullableProp
+        /// </summary>
+        [DataMember(Name = "object_and_items_nullable_prop", EmitDefaultValue = true)]
+        public Dictionary<string, Object> ObjectAndItemsNullableProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ObjectItemsNullable
+        /// </summary>
+        [DataMember(Name = "object_items_nullable", EmitDefaultValue = false)]
+        public Dictionary<string, Object> ObjectItemsNullable { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class NullableClass {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  IntegerProp: ").Append(IntegerProp).Append("\n");
+            sb.Append("  NumberProp: ").Append(NumberProp).Append("\n");
+            sb.Append("  BooleanProp: ").Append(BooleanProp).Append("\n");
+            sb.Append("  StringProp: ").Append(StringProp).Append("\n");
+            sb.Append("  DateProp: ").Append(DateProp).Append("\n");
+            sb.Append("  DatetimeProp: ").Append(DatetimeProp).Append("\n");
+            sb.Append("  ArrayNullableProp: ").Append(ArrayNullableProp).Append("\n");
+            sb.Append("  ArrayAndItemsNullableProp: ").Append(ArrayAndItemsNullableProp).Append("\n");
+            sb.Append("  ArrayItemsNullable: ").Append(ArrayItemsNullable).Append("\n");
+            sb.Append("  ObjectNullableProp: ").Append(ObjectNullableProp).Append("\n");
+            sb.Append("  ObjectAndItemsNullableProp: ").Append(ObjectAndItemsNullableProp).Append("\n");
+            sb.Append("  ObjectItemsNullable: ").Append(ObjectItemsNullable).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as NullableClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if NullableClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of NullableClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(NullableClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                if (this.IntegerProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.IntegerProp.GetHashCode();
+                }
+                if (this.NumberProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NumberProp.GetHashCode();
+                }
+                if (this.BooleanProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.BooleanProp.GetHashCode();
+                }
+                if (this.StringProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.StringProp.GetHashCode();
+                }
+                if (this.DateProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.DateProp.GetHashCode();
+                }
+                if (this.DatetimeProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.DatetimeProp.GetHashCode();
+                }
+                if (this.ArrayNullableProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayNullableProp.GetHashCode();
+                }
+                if (this.ArrayAndItemsNullableProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayAndItemsNullableProp.GetHashCode();
+                }
+                if (this.ArrayItemsNullable != null)
+                {
+                    hashCode = (hashCode * 59) + this.ArrayItemsNullable.GetHashCode();
+                }
+                if (this.ObjectNullableProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.ObjectNullableProp.GetHashCode();
+                }
+                if (this.ObjectAndItemsNullableProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.ObjectAndItemsNullableProp.GetHashCode();
+                }
+                if (this.ObjectItemsNullable != null)
+                {
+                    hashCode = (hashCode * 59) + this.ObjectItemsNullable.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableGuidClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableGuidClass.cs
new file mode 100644
index 00000000000..63046e82052
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableGuidClass.cs
@@ -0,0 +1,133 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// NullableGuidClass
+    /// </summary>
+    [DataContract(Name = "NullableGuidClass")]
+    public partial class NullableGuidClass : IEquatable<NullableGuidClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NullableGuidClass" /> class.
+        /// </summary>
+        /// <param name="uuid">uuid.</param>
+        public NullableGuidClass(Guid? uuid = default(Guid?))
+        {
+            this.Uuid = uuid;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Uuid
+        /// </summary>
+        /// <example>72f98069-206d-4f12-9f12-3d1e525a8e84</example>
+        [DataMember(Name = "uuid", EmitDefaultValue = true)]
+        public Guid? Uuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class NullableGuidClass {\n");
+            sb.Append("  Uuid: ").Append(Uuid).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as NullableGuidClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if NullableGuidClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of NullableGuidClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(NullableGuidClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Uuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.Uuid.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableShape.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableShape.cs
new file mode 100644
index 00000000000..8478eec1193
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NullableShape.cs
@@ -0,0 +1,324 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// The value may be a shape or the &#39;null&#39; value. The &#39;nullable&#39; attribute was introduced in OAS schema &gt;&#x3D; 3.0 and has been deprecated in OAS schema &gt;&#x3D; 3.1.
+    /// </summary>
+    [JsonConverter(typeof(NullableShapeJsonConverter))]
+    [DataContract(Name = "NullableShape")]
+    public partial class NullableShape : AbstractOpenAPISchema, IEquatable<NullableShape>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NullableShape" /> class.
+        /// </summary>
+        public NullableShape()
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NullableShape" /> class
+        /// with the <see cref="Triangle" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Triangle.</param>
+        public NullableShape(Triangle actualInstance)
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NullableShape" /> class
+        /// with the <see cref="Quadrilateral" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Quadrilateral.</param>
+        public NullableShape(Quadrilateral actualInstance)
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance;
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(Quadrilateral))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Triangle))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: Quadrilateral, Triangle");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Triangle`. If the actual instance is not `Triangle`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Triangle</returns>
+        public Triangle GetTriangle()
+        {
+            return (Triangle)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Quadrilateral`. If the actual instance is not `Quadrilateral`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Quadrilateral</returns>
+        public Quadrilateral GetQuadrilateral()
+        {
+            return (Quadrilateral)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class NullableShape {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, NullableShape.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of NullableShape
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of NullableShape</returns>
+        public static NullableShape FromJson(string jsonString)
+        {
+            NullableShape newNullableShape = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newNullableShape;
+            }
+
+            try
+            {
+                var discriminatorObj = JObject.Parse(jsonString)["shapeType"];
+                string discriminatorValue =  discriminatorObj == null ?string.Empty :discriminatorObj.ToString();
+                switch (discriminatorValue)
+                {
+                    case "Quadrilateral":
+                        newNullableShape = new NullableShape(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, NullableShape.AdditionalPropertiesSerializerSettings));
+                        return newNullableShape;
+                    case "Triangle":
+                        newNullableShape = new NullableShape(JsonConvert.DeserializeObject<Triangle>(jsonString, NullableShape.AdditionalPropertiesSerializerSettings));
+                        return newNullableShape;
+                    default:
+                        System.Diagnostics.Debug.WriteLine(string.Format("Failed to lookup discriminator value `{0}` for NullableShape. Possible values: Quadrilateral Triangle", discriminatorValue));
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to parse the json data : `{0}` {1}", jsonString, ex.ToString()));
+            }
+
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Quadrilateral).GetProperty("AdditionalProperties") == null)
+                {
+                    newNullableShape = new NullableShape(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, NullableShape.SerializerSettings));
+                }
+                else
+                {
+                    newNullableShape = new NullableShape(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, NullableShape.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Quadrilateral");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Quadrilateral: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Triangle).GetProperty("AdditionalProperties") == null)
+                {
+                    newNullableShape = new NullableShape(JsonConvert.DeserializeObject<Triangle>(jsonString, NullableShape.SerializerSettings));
+                }
+                else
+                {
+                    newNullableShape = new NullableShape(JsonConvert.DeserializeObject<Triangle>(jsonString, NullableShape.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Triangle");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Triangle: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newNullableShape;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as NullableShape).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if NullableShape instances are equal
+        /// </summary>
+        /// <param name="input">Instance of NullableShape to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(NullableShape input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for NullableShape
+    /// </summary>
+    public class NullableShapeJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(NullableShape).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return NullableShape.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NumberOnly.cs
new file mode 100644
index 00000000000..d25f420362e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/NumberOnly.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// NumberOnly
+    /// </summary>
+    [CLSCompliant(true)]
+    [ComVisible(true)]
+    [DataContract(Name = "NumberOnly")]
+    public partial class NumberOnly : IEquatable<NumberOnly>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NumberOnly" /> class.
+        /// </summary>
+        /// <param name="justNumber">justNumber.</param>
+        public NumberOnly(decimal justNumber = default(decimal))
+        {
+            this.JustNumber = justNumber;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets JustNumber
+        /// </summary>
+        [DataMember(Name = "JustNumber", EmitDefaultValue = false)]
+        public decimal JustNumber { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class NumberOnly {\n");
+            sb.Append("  JustNumber: ").Append(JustNumber).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as NumberOnly).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if NumberOnly instances are equal
+        /// </summary>
+        /// <param name="input">Instance of NumberOnly to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(NumberOnly input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.JustNumber.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs
new file mode 100644
index 00000000000..14022ef06ef
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ObjectWithDeprecatedFields.cs
@@ -0,0 +1,171 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ObjectWithDeprecatedFields
+    /// </summary>
+    [DataContract(Name = "ObjectWithDeprecatedFields")]
+    public partial class ObjectWithDeprecatedFields : IEquatable<ObjectWithDeprecatedFields>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ObjectWithDeprecatedFields" /> class.
+        /// </summary>
+        /// <param name="uuid">uuid.</param>
+        /// <param name="id">id.</param>
+        /// <param name="deprecatedRef">deprecatedRef.</param>
+        /// <param name="bars">bars.</param>
+        public ObjectWithDeprecatedFields(string uuid = default(string), decimal id = default(decimal), DeprecatedObject deprecatedRef = default(DeprecatedObject), List<string> bars = default(List<string>))
+        {
+            this.Uuid = uuid;
+            this.Id = id;
+            this.DeprecatedRef = deprecatedRef;
+            this.Bars = bars;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Uuid
+        /// </summary>
+        [DataMember(Name = "uuid", EmitDefaultValue = false)]
+        public string Uuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        [Obsolete]
+        public decimal Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets DeprecatedRef
+        /// </summary>
+        [DataMember(Name = "deprecatedRef", EmitDefaultValue = false)]
+        [Obsolete]
+        public DeprecatedObject DeprecatedRef { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Bars
+        /// </summary>
+        [DataMember(Name = "bars", EmitDefaultValue = false)]
+        [Obsolete]
+        public List<string> Bars { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ObjectWithDeprecatedFields {\n");
+            sb.Append("  Uuid: ").Append(Uuid).Append("\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  DeprecatedRef: ").Append(DeprecatedRef).Append("\n");
+            sb.Append("  Bars: ").Append(Bars).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ObjectWithDeprecatedFields).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ObjectWithDeprecatedFields instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ObjectWithDeprecatedFields to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ObjectWithDeprecatedFields input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Uuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.Uuid.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.Id.GetHashCode();
+                if (this.DeprecatedRef != null)
+                {
+                    hashCode = (hashCode * 59) + this.DeprecatedRef.GetHashCode();
+                }
+                if (this.Bars != null)
+                {
+                    hashCode = (hashCode * 59) + this.Bars.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OneOfString.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OneOfString.cs
new file mode 100644
index 00000000000..d64b1764a33
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OneOfString.cs
@@ -0,0 +1,245 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// OneOfString
+    /// </summary>
+    [JsonConverter(typeof(OneOfStringJsonConverter))]
+    [DataContract(Name = "OneOfString")]
+    public partial class OneOfString : AbstractOpenAPISchema, IEquatable<OneOfString>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="OneOfString" /> class
+        /// with the <see cref="string" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of string.</param>
+        public OneOfString(string actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(string))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: string");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `string`. If the actual instance is not `string`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of string</returns>
+        public string GetString()
+        {
+            return (string)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class OneOfString {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, OneOfString.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of OneOfString
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of OneOfString</returns>
+        public static OneOfString FromJson(string jsonString)
+        {
+            OneOfString newOneOfString = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newOneOfString;
+            }
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(string).GetProperty("AdditionalProperties") == null)
+                {
+                    newOneOfString = new OneOfString(JsonConvert.DeserializeObject<string>(jsonString, OneOfString.SerializerSettings));
+                }
+                else
+                {
+                    newOneOfString = new OneOfString(JsonConvert.DeserializeObject<string>(jsonString, OneOfString.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("string");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into string: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newOneOfString;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as OneOfString).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if OneOfString instances are equal
+        /// </summary>
+        /// <param name="input">Instance of OneOfString to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(OneOfString input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for OneOfString
+    /// </summary>
+    public class OneOfStringJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(OneOfString).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return OneOfString.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Order.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Order.cs
new file mode 100644
index 00000000000..d9507325385
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Order.cs
@@ -0,0 +1,210 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Order
+    /// </summary>
+    [DataContract(Name = "Order")]
+    public partial class Order : IEquatable<Order>, IValidatableObject
+    {
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum StatusEnum
+        {
+            /// <summary>
+            /// Enum Placed for value: placed
+            /// </summary>
+            [EnumMember(Value = "placed")]
+            Placed = 1,
+
+            /// <summary>
+            /// Enum Approved for value: approved
+            /// </summary>
+            [EnumMember(Value = "approved")]
+            Approved = 2,
+
+            /// <summary>
+            /// Enum Delivered for value: delivered
+            /// </summary>
+            [EnumMember(Value = "delivered")]
+            Delivered = 3
+        }
+
+
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        [DataMember(Name = "status", EmitDefaultValue = false)]
+        public StatusEnum? Status { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Order" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="petId">petId.</param>
+        /// <param name="quantity">quantity.</param>
+        /// <param name="shipDate">shipDate.</param>
+        /// <param name="status">Order Status.</param>
+        /// <param name="complete">complete (default to false).</param>
+        public Order(long id = default(long), long petId = default(long), int quantity = default(int), DateTime shipDate = default(DateTime), StatusEnum? status = default(StatusEnum?), bool complete = false)
+        {
+            this.Id = id;
+            this.PetId = petId;
+            this.Quantity = quantity;
+            this.ShipDate = shipDate;
+            this.Status = status;
+            this.Complete = complete;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PetId
+        /// </summary>
+        [DataMember(Name = "petId", EmitDefaultValue = false)]
+        public long PetId { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Quantity
+        /// </summary>
+        [DataMember(Name = "quantity", EmitDefaultValue = false)]
+        public int Quantity { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ShipDate
+        /// </summary>
+        /// <example>2020-02-02T20:20:20.000222Z</example>
+        [DataMember(Name = "shipDate", EmitDefaultValue = false)]
+        public DateTime ShipDate { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Complete
+        /// </summary>
+        [DataMember(Name = "complete", EmitDefaultValue = true)]
+        public bool Complete { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Order {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  PetId: ").Append(PetId).Append("\n");
+            sb.Append("  Quantity: ").Append(Quantity).Append("\n");
+            sb.Append("  ShipDate: ").Append(ShipDate).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("  Complete: ").Append(Complete).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Order).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Order instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Order to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Order input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Id.GetHashCode();
+                hashCode = (hashCode * 59) + this.PetId.GetHashCode();
+                hashCode = (hashCode * 59) + this.Quantity.GetHashCode();
+                if (this.ShipDate != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShipDate.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.Status.GetHashCode();
+                hashCode = (hashCode * 59) + this.Complete.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterComposite.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterComposite.cs
new file mode 100644
index 00000000000..42ddbc5c56f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterComposite.cs
@@ -0,0 +1,152 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// OuterComposite
+    /// </summary>
+    [DataContract(Name = "OuterComposite")]
+    public partial class OuterComposite : IEquatable<OuterComposite>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="OuterComposite" /> class.
+        /// </summary>
+        /// <param name="myNumber">myNumber.</param>
+        /// <param name="myString">myString.</param>
+        /// <param name="myBoolean">myBoolean.</param>
+        public OuterComposite(decimal myNumber = default(decimal), string myString = default(string), bool myBoolean = default(bool))
+        {
+            this.MyNumber = myNumber;
+            this.MyString = myString;
+            this.MyBoolean = myBoolean;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets MyNumber
+        /// </summary>
+        [DataMember(Name = "my_number", EmitDefaultValue = false)]
+        public decimal MyNumber { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MyString
+        /// </summary>
+        [DataMember(Name = "my_string", EmitDefaultValue = false)]
+        public string MyString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets MyBoolean
+        /// </summary>
+        [DataMember(Name = "my_boolean", EmitDefaultValue = true)]
+        public bool MyBoolean { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class OuterComposite {\n");
+            sb.Append("  MyNumber: ").Append(MyNumber).Append("\n");
+            sb.Append("  MyString: ").Append(MyString).Append("\n");
+            sb.Append("  MyBoolean: ").Append(MyBoolean).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as OuterComposite).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if OuterComposite instances are equal
+        /// </summary>
+        /// <param name="input">Instance of OuterComposite to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(OuterComposite input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.MyNumber.GetHashCode();
+                if (this.MyString != null)
+                {
+                    hashCode = (hashCode * 59) + this.MyString.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.MyBoolean.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnum.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnum.cs
new file mode 100644
index 00000000000..59a9f8e3500
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnum.cs
@@ -0,0 +1,54 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Defines OuterEnum
+    /// </summary>
+    [JsonConverter(typeof(StringEnumConverter))]
+    public enum OuterEnum
+    {
+        /// <summary>
+        /// Enum Placed for value: placed
+        /// </summary>
+        [EnumMember(Value = "placed")]
+        Placed = 1,
+
+        /// <summary>
+        /// Enum Approved for value: approved
+        /// </summary>
+        [EnumMember(Value = "approved")]
+        Approved = 2,
+
+        /// <summary>
+        /// Enum Delivered for value: delivered
+        /// </summary>
+        [EnumMember(Value = "delivered")]
+        Delivered = 3
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs
new file mode 100644
index 00000000000..40e276b600e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumDefaultValue.cs
@@ -0,0 +1,54 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Defines OuterEnumDefaultValue
+    /// </summary>
+    [JsonConverter(typeof(StringEnumConverter))]
+    public enum OuterEnumDefaultValue
+    {
+        /// <summary>
+        /// Enum Placed for value: placed
+        /// </summary>
+        [EnumMember(Value = "placed")]
+        Placed = 1,
+
+        /// <summary>
+        /// Enum Approved for value: approved
+        /// </summary>
+        [EnumMember(Value = "approved")]
+        Approved = 2,
+
+        /// <summary>
+        /// Enum Delivered for value: delivered
+        /// </summary>
+        [EnumMember(Value = "delivered")]
+        Delivered = 3
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumInteger.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumInteger.cs
new file mode 100644
index 00000000000..3a70c3716fe
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumInteger.cs
@@ -0,0 +1,50 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Defines OuterEnumInteger
+    /// </summary>
+    public enum OuterEnumInteger
+    {
+        /// <summary>
+        /// Enum NUMBER_0 for value: 0
+        /// </summary>
+        NUMBER_0 = 0,
+
+        /// <summary>
+        /// Enum NUMBER_1 for value: 1
+        /// </summary>
+        NUMBER_1 = 1,
+
+        /// <summary>
+        /// Enum NUMBER_2 for value: 2
+        /// </summary>
+        NUMBER_2 = 2
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs
new file mode 100644
index 00000000000..42b36058c03
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumIntegerDefaultValue.cs
@@ -0,0 +1,50 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Defines OuterEnumIntegerDefaultValue
+    /// </summary>
+    public enum OuterEnumIntegerDefaultValue
+    {
+        /// <summary>
+        /// Enum NUMBER_0 for value: 0
+        /// </summary>
+        NUMBER_0 = 0,
+
+        /// <summary>
+        /// Enum NUMBER_1 for value: 1
+        /// </summary>
+        NUMBER_1 = 1,
+
+        /// <summary>
+        /// Enum NUMBER_2 for value: 2
+        /// </summary>
+        NUMBER_2 = 2
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumTest.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumTest.cs
new file mode 100644
index 00000000000..392e199e137
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/OuterEnumTest.cs
@@ -0,0 +1,84 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Defines Outer_Enum_Test
+    /// </summary>
+    [JsonConverter(typeof(StringEnumConverter))]
+    public enum OuterEnumTest
+    {
+        /// <summary>
+        /// Enum UPPER for value: UPPER
+        /// </summary>
+        [EnumMember(Value = "UPPER")]
+        UPPER = 1,
+
+        /// <summary>
+        /// Enum Lower for value: lower
+        /// </summary>
+        [EnumMember(Value = "lower")]
+        Lower = 2,
+
+        /// <summary>
+        /// Enum Empty for value: 
+        /// </summary>
+        [EnumMember(Value = "")]
+        Empty = 3,
+
+        /// <summary>
+        /// Enum ValuewithTab for value: Value\twith tab
+        /// </summary>
+        [EnumMember(Value = "Value\twith tab")]
+        ValuewithTab = 4,
+
+        /// <summary>
+        /// Enum ValueWithQuote for value: Value with \&quot; quote
+        /// </summary>
+        [EnumMember(Value = "Value with \" quote")]
+        ValueWithQuote = 5,
+
+        /// <summary>
+        /// Enum ValueWithEscapedQuote for value: Value with escaped \&quot; quote
+        /// </summary>
+        [EnumMember(Value = "Value with escaped \" quote")]
+        ValueWithEscapedQuote = 6,
+
+        /// <summary>
+        /// Enum Duplicatevalue for value: Duplicate\nvalue
+        /// </summary>
+        [EnumMember(Value = "Duplicate\nvalue")]
+        Duplicatevalue = 7,
+
+        /// <summary>
+        /// Enum Duplicatevalue2 for value: Duplicate\r\nvalue
+        /// </summary>
+        [EnumMember(Value = "Duplicate\r\nvalue")]
+        Duplicatevalue2 = 8
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ParentPet.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ParentPet.cs
new file mode 100644
index 00000000000..769c3612f3b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ParentPet.cs
@@ -0,0 +1,146 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ParentPet
+    /// </summary>
+    [DataContract(Name = "ParentPet")]
+    [JsonConverter(typeof(JsonSubtypes), "PetType")]
+    [JsonSubtypes.KnownSubType(typeof(ChildCat), "ChildCat")]
+    public partial class ParentPet : GrandparentAnimal, IEquatable<ParentPet>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ParentPet" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected ParentPet()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ParentPet" /> class.
+        /// </summary>
+        /// <param name="petType">petType (required) (default to &quot;ParentPet&quot;).</param>
+        public ParentPet(string petType = @"ParentPet") : base(petType)
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ParentPet {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ParentPet).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ParentPet instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ParentPet to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ParentPet input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            foreach (var x in base.BaseValidate(validationContext))
+            {
+                yield return x;
+            }
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Pet.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Pet.cs
new file mode 100644
index 00000000000..4f2f095a85a
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Pet.cs
@@ -0,0 +1,237 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Pet
+    /// </summary>
+    [DataContract(Name = "Pet")]
+    public partial class Pet : IEquatable<Pet>, IValidatableObject
+    {
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum StatusEnum
+        {
+            /// <summary>
+            /// Enum Available for value: available
+            /// </summary>
+            [EnumMember(Value = "available")]
+            Available = 1,
+
+            /// <summary>
+            /// Enum Pending for value: pending
+            /// </summary>
+            [EnumMember(Value = "pending")]
+            Pending = 2,
+
+            /// <summary>
+            /// Enum Sold for value: sold
+            /// </summary>
+            [EnumMember(Value = "sold")]
+            Sold = 3
+        }
+
+
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        [DataMember(Name = "status", EmitDefaultValue = false)]
+        public StatusEnum? Status { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Pet" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Pet()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Pet" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="category">category.</param>
+        /// <param name="name">name (required).</param>
+        /// <param name="photoUrls">photoUrls (required).</param>
+        /// <param name="tags">tags.</param>
+        /// <param name="status">pet status in the store.</param>
+        public Pet(long id = default(long), Category category = default(Category), string name = default(string), List<string> photoUrls = default(List<string>), List<Tag> tags = default(List<Tag>), StatusEnum? status = default(StatusEnum?))
+        {
+            // to ensure "name" is required (not null)
+            if (name == null)
+            {
+                throw new ArgumentNullException("name is a required property for Pet and cannot be null");
+            }
+            this.Name = name;
+            // to ensure "photoUrls" is required (not null)
+            if (photoUrls == null)
+            {
+                throw new ArgumentNullException("photoUrls is a required property for Pet and cannot be null");
+            }
+            this.PhotoUrls = photoUrls;
+            this.Id = id;
+            this.Category = category;
+            this.Tags = tags;
+            this.Status = status;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Category
+        /// </summary>
+        [DataMember(Name = "category", EmitDefaultValue = false)]
+        public Category Category { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        /// <example>doggie</example>
+        [DataMember(Name = "name", IsRequired = true, EmitDefaultValue = true)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PhotoUrls
+        /// </summary>
+        [DataMember(Name = "photoUrls", IsRequired = true, EmitDefaultValue = true)]
+        public List<string> PhotoUrls { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Tags
+        /// </summary>
+        [DataMember(Name = "tags", EmitDefaultValue = false)]
+        public List<Tag> Tags { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Pet {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Category: ").Append(Category).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  PhotoUrls: ").Append(PhotoUrls).Append("\n");
+            sb.Append("  Tags: ").Append(Tags).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Pet).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Pet instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Pet to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Pet input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Id.GetHashCode();
+                if (this.Category != null)
+                {
+                    hashCode = (hashCode * 59) + this.Category.GetHashCode();
+                }
+                if (this.Name != null)
+                {
+                    hashCode = (hashCode * 59) + this.Name.GetHashCode();
+                }
+                if (this.PhotoUrls != null)
+                {
+                    hashCode = (hashCode * 59) + this.PhotoUrls.GetHashCode();
+                }
+                if (this.Tags != null)
+                {
+                    hashCode = (hashCode * 59) + this.Tags.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.Status.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Pig.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Pig.cs
new file mode 100644
index 00000000000..5363ba83ae7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Pig.cs
@@ -0,0 +1,315 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Pig
+    /// </summary>
+    [JsonConverter(typeof(PigJsonConverter))]
+    [DataContract(Name = "Pig")]
+    public partial class Pig : AbstractOpenAPISchema, IEquatable<Pig>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Pig" /> class
+        /// with the <see cref="BasquePig" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of BasquePig.</param>
+        public Pig(BasquePig actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Pig" /> class
+        /// with the <see cref="DanishPig" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of DanishPig.</param>
+        public Pig(DanishPig actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(BasquePig))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(DanishPig))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: BasquePig, DanishPig");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `BasquePig`. If the actual instance is not `BasquePig`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of BasquePig</returns>
+        public BasquePig GetBasquePig()
+        {
+            return (BasquePig)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `DanishPig`. If the actual instance is not `DanishPig`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of DanishPig</returns>
+        public DanishPig GetDanishPig()
+        {
+            return (DanishPig)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Pig {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, Pig.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of Pig
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of Pig</returns>
+        public static Pig FromJson(string jsonString)
+        {
+            Pig newPig = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newPig;
+            }
+
+            try
+            {
+                var discriminatorObj = JObject.Parse(jsonString)["className"];
+                string discriminatorValue =  discriminatorObj == null ?string.Empty :discriminatorObj.ToString();
+                switch (discriminatorValue)
+                {
+                    case "BasquePig":
+                        newPig = new Pig(JsonConvert.DeserializeObject<BasquePig>(jsonString, Pig.AdditionalPropertiesSerializerSettings));
+                        return newPig;
+                    case "DanishPig":
+                        newPig = new Pig(JsonConvert.DeserializeObject<DanishPig>(jsonString, Pig.AdditionalPropertiesSerializerSettings));
+                        return newPig;
+                    default:
+                        System.Diagnostics.Debug.WriteLine(string.Format("Failed to lookup discriminator value `{0}` for Pig. Possible values: BasquePig DanishPig", discriminatorValue));
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to parse the json data : `{0}` {1}", jsonString, ex.ToString()));
+            }
+
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(BasquePig).GetProperty("AdditionalProperties") == null)
+                {
+                    newPig = new Pig(JsonConvert.DeserializeObject<BasquePig>(jsonString, Pig.SerializerSettings));
+                }
+                else
+                {
+                    newPig = new Pig(JsonConvert.DeserializeObject<BasquePig>(jsonString, Pig.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("BasquePig");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into BasquePig: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(DanishPig).GetProperty("AdditionalProperties") == null)
+                {
+                    newPig = new Pig(JsonConvert.DeserializeObject<DanishPig>(jsonString, Pig.SerializerSettings));
+                }
+                else
+                {
+                    newPig = new Pig(JsonConvert.DeserializeObject<DanishPig>(jsonString, Pig.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("DanishPig");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into DanishPig: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newPig;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Pig).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Pig instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Pig to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Pig input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for Pig
+    /// </summary>
+    public class PigJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(Pig).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return Pig.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/PolymorphicProperty.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/PolymorphicProperty.cs
new file mode 100644
index 00000000000..1c09e9ad20d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/PolymorphicProperty.cs
@@ -0,0 +1,383 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// PolymorphicProperty
+    /// </summary>
+    [JsonConverter(typeof(PolymorphicPropertyJsonConverter))]
+    [DataContract(Name = "PolymorphicProperty")]
+    public partial class PolymorphicProperty : AbstractOpenAPISchema, IEquatable<PolymorphicProperty>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PolymorphicProperty" /> class
+        /// with the <see cref="bool" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of bool.</param>
+        public PolymorphicProperty(bool actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PolymorphicProperty" /> class
+        /// with the <see cref="string" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of string.</param>
+        public PolymorphicProperty(string actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PolymorphicProperty" /> class
+        /// with the <see cref="Object" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Object.</param>
+        public PolymorphicProperty(Object actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PolymorphicProperty" /> class
+        /// with the <see cref="List{String}" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of List&lt;string&gt;.</param>
+        public PolymorphicProperty(List<string> actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(List<string>))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Object))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(bool))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(string))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: List<string>, Object, bool, string");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `bool`. If the actual instance is not `bool`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of bool</returns>
+        public bool GetBool()
+        {
+            return (bool)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `string`. If the actual instance is not `string`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of string</returns>
+        public string GetString()
+        {
+            return (string)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Object`. If the actual instance is not `Object`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Object</returns>
+        public Object GetObject()
+        {
+            return (Object)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `List&lt;string&gt;`. If the actual instance is not `List&lt;string&gt;`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of List&lt;string&gt;</returns>
+        public List<string> GetListString()
+        {
+            return (List<string>)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class PolymorphicProperty {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, PolymorphicProperty.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of PolymorphicProperty
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of PolymorphicProperty</returns>
+        public static PolymorphicProperty FromJson(string jsonString)
+        {
+            PolymorphicProperty newPolymorphicProperty = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newPolymorphicProperty;
+            }
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(List<string>).GetProperty("AdditionalProperties") == null)
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<List<string>>(jsonString, PolymorphicProperty.SerializerSettings));
+                }
+                else
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<List<string>>(jsonString, PolymorphicProperty.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("List<string>");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into List<string>: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Object).GetProperty("AdditionalProperties") == null)
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<Object>(jsonString, PolymorphicProperty.SerializerSettings));
+                }
+                else
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<Object>(jsonString, PolymorphicProperty.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Object");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Object: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(bool).GetProperty("AdditionalProperties") == null)
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<bool>(jsonString, PolymorphicProperty.SerializerSettings));
+                }
+                else
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<bool>(jsonString, PolymorphicProperty.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("bool");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into bool: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(string).GetProperty("AdditionalProperties") == null)
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<string>(jsonString, PolymorphicProperty.SerializerSettings));
+                }
+                else
+                {
+                    newPolymorphicProperty = new PolymorphicProperty(JsonConvert.DeserializeObject<string>(jsonString, PolymorphicProperty.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("string");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into string: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newPolymorphicProperty;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as PolymorphicProperty).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if PolymorphicProperty instances are equal
+        /// </summary>
+        /// <param name="input">Instance of PolymorphicProperty to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(PolymorphicProperty input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for PolymorphicProperty
+    /// </summary>
+    public class PolymorphicPropertyJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(PolymorphicProperty).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return PolymorphicProperty.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Quadrilateral.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Quadrilateral.cs
new file mode 100644
index 00000000000..13087e6b454
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Quadrilateral.cs
@@ -0,0 +1,315 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Quadrilateral
+    /// </summary>
+    [JsonConverter(typeof(QuadrilateralJsonConverter))]
+    [DataContract(Name = "Quadrilateral")]
+    public partial class Quadrilateral : AbstractOpenAPISchema, IEquatable<Quadrilateral>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Quadrilateral" /> class
+        /// with the <see cref="SimpleQuadrilateral" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of SimpleQuadrilateral.</param>
+        public Quadrilateral(SimpleQuadrilateral actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Quadrilateral" /> class
+        /// with the <see cref="ComplexQuadrilateral" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of ComplexQuadrilateral.</param>
+        public Quadrilateral(ComplexQuadrilateral actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(ComplexQuadrilateral))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(SimpleQuadrilateral))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: ComplexQuadrilateral, SimpleQuadrilateral");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `SimpleQuadrilateral`. If the actual instance is not `SimpleQuadrilateral`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of SimpleQuadrilateral</returns>
+        public SimpleQuadrilateral GetSimpleQuadrilateral()
+        {
+            return (SimpleQuadrilateral)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `ComplexQuadrilateral`. If the actual instance is not `ComplexQuadrilateral`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of ComplexQuadrilateral</returns>
+        public ComplexQuadrilateral GetComplexQuadrilateral()
+        {
+            return (ComplexQuadrilateral)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Quadrilateral {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, Quadrilateral.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of Quadrilateral
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of Quadrilateral</returns>
+        public static Quadrilateral FromJson(string jsonString)
+        {
+            Quadrilateral newQuadrilateral = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newQuadrilateral;
+            }
+
+            try
+            {
+                var discriminatorObj = JObject.Parse(jsonString)["quadrilateralType"];
+                string discriminatorValue =  discriminatorObj == null ?string.Empty :discriminatorObj.ToString();
+                switch (discriminatorValue)
+                {
+                    case "ComplexQuadrilateral":
+                        newQuadrilateral = new Quadrilateral(JsonConvert.DeserializeObject<ComplexQuadrilateral>(jsonString, Quadrilateral.AdditionalPropertiesSerializerSettings));
+                        return newQuadrilateral;
+                    case "SimpleQuadrilateral":
+                        newQuadrilateral = new Quadrilateral(JsonConvert.DeserializeObject<SimpleQuadrilateral>(jsonString, Quadrilateral.AdditionalPropertiesSerializerSettings));
+                        return newQuadrilateral;
+                    default:
+                        System.Diagnostics.Debug.WriteLine(string.Format("Failed to lookup discriminator value `{0}` for Quadrilateral. Possible values: ComplexQuadrilateral SimpleQuadrilateral", discriminatorValue));
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to parse the json data : `{0}` {1}", jsonString, ex.ToString()));
+            }
+
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(ComplexQuadrilateral).GetProperty("AdditionalProperties") == null)
+                {
+                    newQuadrilateral = new Quadrilateral(JsonConvert.DeserializeObject<ComplexQuadrilateral>(jsonString, Quadrilateral.SerializerSettings));
+                }
+                else
+                {
+                    newQuadrilateral = new Quadrilateral(JsonConvert.DeserializeObject<ComplexQuadrilateral>(jsonString, Quadrilateral.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("ComplexQuadrilateral");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into ComplexQuadrilateral: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(SimpleQuadrilateral).GetProperty("AdditionalProperties") == null)
+                {
+                    newQuadrilateral = new Quadrilateral(JsonConvert.DeserializeObject<SimpleQuadrilateral>(jsonString, Quadrilateral.SerializerSettings));
+                }
+                else
+                {
+                    newQuadrilateral = new Quadrilateral(JsonConvert.DeserializeObject<SimpleQuadrilateral>(jsonString, Quadrilateral.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("SimpleQuadrilateral");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into SimpleQuadrilateral: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newQuadrilateral;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Quadrilateral).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Quadrilateral instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Quadrilateral to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Quadrilateral input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for Quadrilateral
+    /// </summary>
+    public class QuadrilateralJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(Quadrilateral).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return Quadrilateral.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
new file mode 100644
index 00000000000..9f2f3d60b1f
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// QuadrilateralInterface
+    /// </summary>
+    [DataContract(Name = "QuadrilateralInterface")]
+    public partial class QuadrilateralInterface : IEquatable<QuadrilateralInterface>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="QuadrilateralInterface" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected QuadrilateralInterface()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="QuadrilateralInterface" /> class.
+        /// </summary>
+        /// <param name="quadrilateralType">quadrilateralType (required).</param>
+        public QuadrilateralInterface(string quadrilateralType = default(string))
+        {
+            // to ensure "quadrilateralType" is required (not null)
+            if (quadrilateralType == null)
+            {
+                throw new ArgumentNullException("quadrilateralType is a required property for QuadrilateralInterface and cannot be null");
+            }
+            this.QuadrilateralType = quadrilateralType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets QuadrilateralType
+        /// </summary>
+        [DataMember(Name = "quadrilateralType", IsRequired = true, EmitDefaultValue = true)]
+        public string QuadrilateralType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class QuadrilateralInterface {\n");
+            sb.Append("  QuadrilateralType: ").Append(QuadrilateralType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as QuadrilateralInterface).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if QuadrilateralInterface instances are equal
+        /// </summary>
+        /// <param name="input">Instance of QuadrilateralInterface to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(QuadrilateralInterface input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.QuadrilateralType != null)
+                {
+                    hashCode = (hashCode * 59) + this.QuadrilateralType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
new file mode 100644
index 00000000000..233a10492f3
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
@@ -0,0 +1,151 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ReadOnlyFirst
+    /// </summary>
+    [DataContract(Name = "ReadOnlyFirst")]
+    public partial class ReadOnlyFirst : IEquatable<ReadOnlyFirst>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ReadOnlyFirst" /> class.
+        /// </summary>
+        /// <param name="baz">baz.</param>
+        public ReadOnlyFirst(string baz = default(string))
+        {
+            this.Baz = baz;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Bar
+        /// </summary>
+        [DataMember(Name = "bar", EmitDefaultValue = false)]
+        public string Bar { get; private set; }
+
+        /// <summary>
+        /// Returns false as Bar should not be serialized given that it's read-only.
+        /// </summary>
+        /// <returns>false (boolean)</returns>
+        public bool ShouldSerializeBar()
+        {
+            return false;
+        }
+        /// <summary>
+        /// Gets or Sets Baz
+        /// </summary>
+        [DataMember(Name = "baz", EmitDefaultValue = false)]
+        public string Baz { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ReadOnlyFirst {\n");
+            sb.Append("  Bar: ").Append(Bar).Append("\n");
+            sb.Append("  Baz: ").Append(Baz).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ReadOnlyFirst).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ReadOnlyFirst instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ReadOnlyFirst to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ReadOnlyFirst input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Bar != null)
+                {
+                    hashCode = (hashCode * 59) + this.Bar.GetHashCode();
+                }
+                if (this.Baz != null)
+                {
+                    hashCode = (hashCode * 59) + this.Baz.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RequiredClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RequiredClass.cs
new file mode 100644
index 00000000000..90e0c44b40b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RequiredClass.cs
@@ -0,0 +1,1042 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// RequiredClass
+    /// </summary>
+    [DataContract(Name = "RequiredClass")]
+    public partial class RequiredClass : IEquatable<RequiredClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Defines RequiredNullableEnumInteger
+        /// </summary>
+        public enum RequiredNullableEnumIntegerEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_1 for value: 1
+            /// </summary>
+            NUMBER_1 = 1,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_1 for value: -1
+            /// </summary>
+            NUMBER_MINUS_1 = -1
+        }
+
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableEnumInteger
+        /// </summary>
+        [DataMember(Name = "required_nullable_enum_integer", IsRequired = true, EmitDefaultValue = true)]
+        public RequiredNullableEnumIntegerEnum RequiredNullableEnumInteger { get; set; }
+        /// <summary>
+        /// Defines RequiredNotnullableEnumInteger
+        /// </summary>
+        public enum RequiredNotnullableEnumIntegerEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_1 for value: 1
+            /// </summary>
+            NUMBER_1 = 1,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_1 for value: -1
+            /// </summary>
+            NUMBER_MINUS_1 = -1
+        }
+
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableEnumInteger
+        /// </summary>
+        [DataMember(Name = "required_notnullable_enum_integer", IsRequired = true, EmitDefaultValue = true)]
+        public RequiredNotnullableEnumIntegerEnum RequiredNotnullableEnumInteger { get; set; }
+        /// <summary>
+        /// Defines NotrequiredNullableEnumInteger
+        /// </summary>
+        public enum NotrequiredNullableEnumIntegerEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_1 for value: 1
+            /// </summary>
+            NUMBER_1 = 1,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_1 for value: -1
+            /// </summary>
+            NUMBER_MINUS_1 = -1
+        }
+
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableEnumInteger
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_enum_integer", EmitDefaultValue = true)]
+        public NotrequiredNullableEnumIntegerEnum? NotrequiredNullableEnumInteger { get; set; }
+        /// <summary>
+        /// Defines NotrequiredNotnullableEnumInteger
+        /// </summary>
+        public enum NotrequiredNotnullableEnumIntegerEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_1 for value: 1
+            /// </summary>
+            NUMBER_1 = 1,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_1 for value: -1
+            /// </summary>
+            NUMBER_MINUS_1 = -1
+        }
+
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableEnumInteger
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_enum_integer", EmitDefaultValue = false)]
+        public NotrequiredNotnullableEnumIntegerEnum? NotrequiredNotnullableEnumInteger { get; set; }
+        /// <summary>
+        /// Defines RequiredNullableEnumIntegerOnly
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum RequiredNullableEnumIntegerOnlyEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_2 for value: 2
+            /// </summary>
+            NUMBER_2 = 2,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_2 for value: -2
+            /// </summary>
+            NUMBER_MINUS_2 = -2
+        }
+
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableEnumIntegerOnly
+        /// </summary>
+        [DataMember(Name = "required_nullable_enum_integer_only", IsRequired = true, EmitDefaultValue = true)]
+        public RequiredNullableEnumIntegerOnlyEnum RequiredNullableEnumIntegerOnly { get; set; }
+        /// <summary>
+        /// Defines RequiredNotnullableEnumIntegerOnly
+        /// </summary>
+        public enum RequiredNotnullableEnumIntegerOnlyEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_2 for value: 2
+            /// </summary>
+            NUMBER_2 = 2,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_2 for value: -2
+            /// </summary>
+            NUMBER_MINUS_2 = -2
+        }
+
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableEnumIntegerOnly
+        /// </summary>
+        [DataMember(Name = "required_notnullable_enum_integer_only", IsRequired = true, EmitDefaultValue = true)]
+        public RequiredNotnullableEnumIntegerOnlyEnum RequiredNotnullableEnumIntegerOnly { get; set; }
+        /// <summary>
+        /// Defines NotrequiredNullableEnumIntegerOnly
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum NotrequiredNullableEnumIntegerOnlyEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_2 for value: 2
+            /// </summary>
+            NUMBER_2 = 2,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_2 for value: -2
+            /// </summary>
+            NUMBER_MINUS_2 = -2
+        }
+
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableEnumIntegerOnly
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_enum_integer_only", EmitDefaultValue = true)]
+        public NotrequiredNullableEnumIntegerOnlyEnum? NotrequiredNullableEnumIntegerOnly { get; set; }
+        /// <summary>
+        /// Defines NotrequiredNotnullableEnumIntegerOnly
+        /// </summary>
+        public enum NotrequiredNotnullableEnumIntegerOnlyEnum
+        {
+            /// <summary>
+            /// Enum NUMBER_2 for value: 2
+            /// </summary>
+            NUMBER_2 = 2,
+
+            /// <summary>
+            /// Enum NUMBER_MINUS_2 for value: -2
+            /// </summary>
+            NUMBER_MINUS_2 = -2
+        }
+
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableEnumIntegerOnly
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_enum_integer_only", EmitDefaultValue = false)]
+        public NotrequiredNotnullableEnumIntegerOnlyEnum? NotrequiredNotnullableEnumIntegerOnly { get; set; }
+        /// <summary>
+        /// Defines RequiredNotnullableEnumString
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum RequiredNotnullableEnumStringEnum
+        {
+            /// <summary>
+            /// Enum UPPER for value: UPPER
+            /// </summary>
+            [EnumMember(Value = "UPPER")]
+            UPPER = 1,
+
+            /// <summary>
+            /// Enum Lower for value: lower
+            /// </summary>
+            [EnumMember(Value = "lower")]
+            Lower = 2,
+
+            /// <summary>
+            /// Enum Empty for value: 
+            /// </summary>
+            [EnumMember(Value = "")]
+            Empty = 3,
+
+            /// <summary>
+            /// Enum ValuewithTab for value: Value\twith tab
+            /// </summary>
+            [EnumMember(Value = "Value\twith tab")]
+            ValuewithTab = 4,
+
+            /// <summary>
+            /// Enum ValueWithQuote for value: Value with \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with \" quote")]
+            ValueWithQuote = 5,
+
+            /// <summary>
+            /// Enum ValueWithEscapedQuote for value: Value with escaped \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with escaped \" quote")]
+            ValueWithEscapedQuote = 6,
+
+            /// <summary>
+            /// Enum Duplicatevalue for value: Duplicate\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\nvalue")]
+            Duplicatevalue = 7,
+
+            /// <summary>
+            /// Enum Duplicatevalue2 for value: Duplicate\r\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\r\nvalue")]
+            Duplicatevalue2 = 8
+        }
+
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableEnumString
+        /// </summary>
+        [DataMember(Name = "required_notnullable_enum_string", IsRequired = true, EmitDefaultValue = true)]
+        public RequiredNotnullableEnumStringEnum RequiredNotnullableEnumString { get; set; }
+        /// <summary>
+        /// Defines RequiredNullableEnumString
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum RequiredNullableEnumStringEnum
+        {
+            /// <summary>
+            /// Enum UPPER for value: UPPER
+            /// </summary>
+            [EnumMember(Value = "UPPER")]
+            UPPER = 1,
+
+            /// <summary>
+            /// Enum Lower for value: lower
+            /// </summary>
+            [EnumMember(Value = "lower")]
+            Lower = 2,
+
+            /// <summary>
+            /// Enum Empty for value: 
+            /// </summary>
+            [EnumMember(Value = "")]
+            Empty = 3,
+
+            /// <summary>
+            /// Enum ValuewithTab for value: Value\twith tab
+            /// </summary>
+            [EnumMember(Value = "Value\twith tab")]
+            ValuewithTab = 4,
+
+            /// <summary>
+            /// Enum ValueWithQuote for value: Value with \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with \" quote")]
+            ValueWithQuote = 5,
+
+            /// <summary>
+            /// Enum ValueWithEscapedQuote for value: Value with escaped \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with escaped \" quote")]
+            ValueWithEscapedQuote = 6,
+
+            /// <summary>
+            /// Enum Duplicatevalue for value: Duplicate\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\nvalue")]
+            Duplicatevalue = 7,
+
+            /// <summary>
+            /// Enum Duplicatevalue2 for value: Duplicate\r\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\r\nvalue")]
+            Duplicatevalue2 = 8
+        }
+
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableEnumString
+        /// </summary>
+        [DataMember(Name = "required_nullable_enum_string", IsRequired = true, EmitDefaultValue = true)]
+        public RequiredNullableEnumStringEnum RequiredNullableEnumString { get; set; }
+        /// <summary>
+        /// Defines NotrequiredNullableEnumString
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum NotrequiredNullableEnumStringEnum
+        {
+            /// <summary>
+            /// Enum UPPER for value: UPPER
+            /// </summary>
+            [EnumMember(Value = "UPPER")]
+            UPPER = 1,
+
+            /// <summary>
+            /// Enum Lower for value: lower
+            /// </summary>
+            [EnumMember(Value = "lower")]
+            Lower = 2,
+
+            /// <summary>
+            /// Enum Empty for value: 
+            /// </summary>
+            [EnumMember(Value = "")]
+            Empty = 3,
+
+            /// <summary>
+            /// Enum ValuewithTab for value: Value\twith tab
+            /// </summary>
+            [EnumMember(Value = "Value\twith tab")]
+            ValuewithTab = 4,
+
+            /// <summary>
+            /// Enum ValueWithQuote for value: Value with \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with \" quote")]
+            ValueWithQuote = 5,
+
+            /// <summary>
+            /// Enum ValueWithEscapedQuote for value: Value with escaped \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with escaped \" quote")]
+            ValueWithEscapedQuote = 6,
+
+            /// <summary>
+            /// Enum Duplicatevalue for value: Duplicate\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\nvalue")]
+            Duplicatevalue = 7,
+
+            /// <summary>
+            /// Enum Duplicatevalue2 for value: Duplicate\r\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\r\nvalue")]
+            Duplicatevalue2 = 8
+        }
+
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableEnumString
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_enum_string", EmitDefaultValue = true)]
+        public NotrequiredNullableEnumStringEnum? NotrequiredNullableEnumString { get; set; }
+        /// <summary>
+        /// Defines NotrequiredNotnullableEnumString
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum NotrequiredNotnullableEnumStringEnum
+        {
+            /// <summary>
+            /// Enum UPPER for value: UPPER
+            /// </summary>
+            [EnumMember(Value = "UPPER")]
+            UPPER = 1,
+
+            /// <summary>
+            /// Enum Lower for value: lower
+            /// </summary>
+            [EnumMember(Value = "lower")]
+            Lower = 2,
+
+            /// <summary>
+            /// Enum Empty for value: 
+            /// </summary>
+            [EnumMember(Value = "")]
+            Empty = 3,
+
+            /// <summary>
+            /// Enum ValuewithTab for value: Value\twith tab
+            /// </summary>
+            [EnumMember(Value = "Value\twith tab")]
+            ValuewithTab = 4,
+
+            /// <summary>
+            /// Enum ValueWithQuote for value: Value with \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with \" quote")]
+            ValueWithQuote = 5,
+
+            /// <summary>
+            /// Enum ValueWithEscapedQuote for value: Value with escaped \&quot; quote
+            /// </summary>
+            [EnumMember(Value = "Value with escaped \" quote")]
+            ValueWithEscapedQuote = 6,
+
+            /// <summary>
+            /// Enum Duplicatevalue for value: Duplicate\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\nvalue")]
+            Duplicatevalue = 7,
+
+            /// <summary>
+            /// Enum Duplicatevalue2 for value: Duplicate\r\nvalue
+            /// </summary>
+            [EnumMember(Value = "Duplicate\r\nvalue")]
+            Duplicatevalue2 = 8
+        }
+
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableEnumString
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_enum_string", EmitDefaultValue = false)]
+        public NotrequiredNotnullableEnumStringEnum? NotrequiredNotnullableEnumString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableOuterEnumDefaultValue
+        /// </summary>
+        [DataMember(Name = "required_nullable_outerEnumDefaultValue", IsRequired = true, EmitDefaultValue = true)]
+        public OuterEnumDefaultValue RequiredNullableOuterEnumDefaultValue { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableOuterEnumDefaultValue
+        /// </summary>
+        [DataMember(Name = "required_notnullable_outerEnumDefaultValue", IsRequired = true, EmitDefaultValue = true)]
+        public OuterEnumDefaultValue RequiredNotnullableOuterEnumDefaultValue { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableOuterEnumDefaultValue
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_outerEnumDefaultValue", EmitDefaultValue = true)]
+        public OuterEnumDefaultValue? NotrequiredNullableOuterEnumDefaultValue { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableOuterEnumDefaultValue
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_outerEnumDefaultValue", EmitDefaultValue = false)]
+        public OuterEnumDefaultValue? NotrequiredNotnullableOuterEnumDefaultValue { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="RequiredClass" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected RequiredClass()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="RequiredClass" /> class.
+        /// </summary>
+        /// <param name="requiredNullableIntegerProp">requiredNullableIntegerProp (required).</param>
+        /// <param name="requiredNotnullableintegerProp">requiredNotnullableintegerProp (required).</param>
+        /// <param name="notRequiredNullableIntegerProp">notRequiredNullableIntegerProp.</param>
+        /// <param name="notRequiredNotnullableintegerProp">notRequiredNotnullableintegerProp.</param>
+        /// <param name="requiredNullableStringProp">requiredNullableStringProp (required).</param>
+        /// <param name="requiredNotnullableStringProp">requiredNotnullableStringProp (required).</param>
+        /// <param name="notrequiredNullableStringProp">notrequiredNullableStringProp.</param>
+        /// <param name="notrequiredNotnullableStringProp">notrequiredNotnullableStringProp.</param>
+        /// <param name="requiredNullableBooleanProp">requiredNullableBooleanProp (required).</param>
+        /// <param name="requiredNotnullableBooleanProp">requiredNotnullableBooleanProp (required).</param>
+        /// <param name="notrequiredNullableBooleanProp">notrequiredNullableBooleanProp.</param>
+        /// <param name="notrequiredNotnullableBooleanProp">notrequiredNotnullableBooleanProp.</param>
+        /// <param name="requiredNullableDateProp">requiredNullableDateProp (required).</param>
+        /// <param name="requiredNotNullableDateProp">requiredNotNullableDateProp (required).</param>
+        /// <param name="notRequiredNullableDateProp">notRequiredNullableDateProp.</param>
+        /// <param name="notRequiredNotnullableDateProp">notRequiredNotnullableDateProp.</param>
+        /// <param name="requiredNotnullableDatetimeProp">requiredNotnullableDatetimeProp (required).</param>
+        /// <param name="requiredNullableDatetimeProp">requiredNullableDatetimeProp (required).</param>
+        /// <param name="notrequiredNullableDatetimeProp">notrequiredNullableDatetimeProp.</param>
+        /// <param name="notrequiredNotnullableDatetimeProp">notrequiredNotnullableDatetimeProp.</param>
+        /// <param name="requiredNullableEnumInteger">requiredNullableEnumInteger (required).</param>
+        /// <param name="requiredNotnullableEnumInteger">requiredNotnullableEnumInteger (required).</param>
+        /// <param name="notrequiredNullableEnumInteger">notrequiredNullableEnumInteger.</param>
+        /// <param name="notrequiredNotnullableEnumInteger">notrequiredNotnullableEnumInteger.</param>
+        /// <param name="requiredNullableEnumIntegerOnly">requiredNullableEnumIntegerOnly (required).</param>
+        /// <param name="requiredNotnullableEnumIntegerOnly">requiredNotnullableEnumIntegerOnly (required).</param>
+        /// <param name="notrequiredNullableEnumIntegerOnly">notrequiredNullableEnumIntegerOnly.</param>
+        /// <param name="notrequiredNotnullableEnumIntegerOnly">notrequiredNotnullableEnumIntegerOnly.</param>
+        /// <param name="requiredNotnullableEnumString">requiredNotnullableEnumString (required).</param>
+        /// <param name="requiredNullableEnumString">requiredNullableEnumString (required).</param>
+        /// <param name="notrequiredNullableEnumString">notrequiredNullableEnumString.</param>
+        /// <param name="notrequiredNotnullableEnumString">notrequiredNotnullableEnumString.</param>
+        /// <param name="requiredNullableOuterEnumDefaultValue">requiredNullableOuterEnumDefaultValue (required).</param>
+        /// <param name="requiredNotnullableOuterEnumDefaultValue">requiredNotnullableOuterEnumDefaultValue (required).</param>
+        /// <param name="notrequiredNullableOuterEnumDefaultValue">notrequiredNullableOuterEnumDefaultValue.</param>
+        /// <param name="notrequiredNotnullableOuterEnumDefaultValue">notrequiredNotnullableOuterEnumDefaultValue.</param>
+        /// <param name="requiredNullableUuid">requiredNullableUuid (required).</param>
+        /// <param name="requiredNotnullableUuid">requiredNotnullableUuid (required).</param>
+        /// <param name="notrequiredNullableUuid">notrequiredNullableUuid.</param>
+        /// <param name="notrequiredNotnullableUuid">notrequiredNotnullableUuid.</param>
+        /// <param name="requiredNullableArrayOfString">requiredNullableArrayOfString (required).</param>
+        /// <param name="requiredNotnullableArrayOfString">requiredNotnullableArrayOfString (required).</param>
+        /// <param name="notrequiredNullableArrayOfString">notrequiredNullableArrayOfString.</param>
+        /// <param name="notrequiredNotnullableArrayOfString">notrequiredNotnullableArrayOfString.</param>
+        public RequiredClass(int? requiredNullableIntegerProp = default(int?), int requiredNotnullableintegerProp = default(int), int? notRequiredNullableIntegerProp = default(int?), int notRequiredNotnullableintegerProp = default(int), string requiredNullableStringProp = default(string), string requiredNotnullableStringProp = default(string), string notrequiredNullableStringProp = default(string), string notrequiredNotnullableStringProp = default(string), bool? requiredNullableBooleanProp = default(bool?), bool requiredNotnullableBooleanProp = default(bool), bool? notrequiredNullableBooleanProp = default(bool?), bool notrequiredNotnullableBooleanProp = default(bool), DateTime? requiredNullableDateProp = default(DateTime?), DateTime requiredNotNullableDateProp = default(DateTime), DateTime? notRequiredNullableDateProp = default(DateTime?), DateTime notRequiredNotnullableDateProp = default(DateTime), DateTime requiredNotnullableDatetimeProp = default(DateTime), DateTime? requiredNullableDatetimeProp = default(DateTime?), DateTime? notrequiredNullableDatetimeProp = default(DateTime?), DateTime notrequiredNotnullableDatetimeProp = default(DateTime), RequiredNullableEnumIntegerEnum requiredNullableEnumInteger = default(RequiredNullableEnumIntegerEnum), RequiredNotnullableEnumIntegerEnum requiredNotnullableEnumInteger = default(RequiredNotnullableEnumIntegerEnum), NotrequiredNullableEnumIntegerEnum? notrequiredNullableEnumInteger = default(NotrequiredNullableEnumIntegerEnum?), NotrequiredNotnullableEnumIntegerEnum? notrequiredNotnullableEnumInteger = default(NotrequiredNotnullableEnumIntegerEnum?), RequiredNullableEnumIntegerOnlyEnum requiredNullableEnumIntegerOnly = default(RequiredNullableEnumIntegerOnlyEnum), RequiredNotnullableEnumIntegerOnlyEnum requiredNotnullableEnumIntegerOnly = default(RequiredNotnullableEnumIntegerOnlyEnum), NotrequiredNullableEnumIntegerOnlyEnum? notrequiredNullableEnumIntegerOnly = default(NotrequiredNullableEnumIntegerOnlyEnum?), NotrequiredNotnullableEnumIntegerOnlyEnum? notrequiredNotnullableEnumIntegerOnly = default(NotrequiredNotnullableEnumIntegerOnlyEnum?), RequiredNotnullableEnumStringEnum requiredNotnullableEnumString = default(RequiredNotnullableEnumStringEnum), RequiredNullableEnumStringEnum requiredNullableEnumString = default(RequiredNullableEnumStringEnum), NotrequiredNullableEnumStringEnum? notrequiredNullableEnumString = default(NotrequiredNullableEnumStringEnum?), NotrequiredNotnullableEnumStringEnum? notrequiredNotnullableEnumString = default(NotrequiredNotnullableEnumStringEnum?), OuterEnumDefaultValue requiredNullableOuterEnumDefaultValue = default(OuterEnumDefaultValue), OuterEnumDefaultValue requiredNotnullableOuterEnumDefaultValue = default(OuterEnumDefaultValue), OuterEnumDefaultValue? notrequiredNullableOuterEnumDefaultValue = default(OuterEnumDefaultValue?), OuterEnumDefaultValue? notrequiredNotnullableOuterEnumDefaultValue = default(OuterEnumDefaultValue?), Guid? requiredNullableUuid = default(Guid?), Guid requiredNotnullableUuid = default(Guid), Guid? notrequiredNullableUuid = default(Guid?), Guid notrequiredNotnullableUuid = default(Guid), List<string> requiredNullableArrayOfString = default(List<string>), List<string> requiredNotnullableArrayOfString = default(List<string>), List<string> notrequiredNullableArrayOfString = default(List<string>), List<string> notrequiredNotnullableArrayOfString = default(List<string>))
+        {
+            // to ensure "requiredNullableIntegerProp" is required (not null)
+            if (requiredNullableIntegerProp == null)
+            {
+                throw new ArgumentNullException("requiredNullableIntegerProp is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNullableIntegerProp = requiredNullableIntegerProp;
+            this.RequiredNotnullableintegerProp = requiredNotnullableintegerProp;
+            // to ensure "requiredNullableStringProp" is required (not null)
+            if (requiredNullableStringProp == null)
+            {
+                throw new ArgumentNullException("requiredNullableStringProp is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNullableStringProp = requiredNullableStringProp;
+            // to ensure "requiredNotnullableStringProp" is required (not null)
+            if (requiredNotnullableStringProp == null)
+            {
+                throw new ArgumentNullException("requiredNotnullableStringProp is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNotnullableStringProp = requiredNotnullableStringProp;
+            // to ensure "requiredNullableBooleanProp" is required (not null)
+            if (requiredNullableBooleanProp == null)
+            {
+                throw new ArgumentNullException("requiredNullableBooleanProp is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNullableBooleanProp = requiredNullableBooleanProp;
+            this.RequiredNotnullableBooleanProp = requiredNotnullableBooleanProp;
+            // to ensure "requiredNullableDateProp" is required (not null)
+            if (requiredNullableDateProp == null)
+            {
+                throw new ArgumentNullException("requiredNullableDateProp is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNullableDateProp = requiredNullableDateProp;
+            this.RequiredNotNullableDateProp = requiredNotNullableDateProp;
+            this.RequiredNotnullableDatetimeProp = requiredNotnullableDatetimeProp;
+            // to ensure "requiredNullableDatetimeProp" is required (not null)
+            if (requiredNullableDatetimeProp == null)
+            {
+                throw new ArgumentNullException("requiredNullableDatetimeProp is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNullableDatetimeProp = requiredNullableDatetimeProp;
+            this.RequiredNullableEnumInteger = requiredNullableEnumInteger;
+            this.RequiredNotnullableEnumInteger = requiredNotnullableEnumInteger;
+            this.RequiredNullableEnumIntegerOnly = requiredNullableEnumIntegerOnly;
+            this.RequiredNotnullableEnumIntegerOnly = requiredNotnullableEnumIntegerOnly;
+            this.RequiredNotnullableEnumString = requiredNotnullableEnumString;
+            this.RequiredNullableEnumString = requiredNullableEnumString;
+            this.RequiredNullableOuterEnumDefaultValue = requiredNullableOuterEnumDefaultValue;
+            this.RequiredNotnullableOuterEnumDefaultValue = requiredNotnullableOuterEnumDefaultValue;
+            // to ensure "requiredNullableUuid" is required (not null)
+            if (requiredNullableUuid == null)
+            {
+                throw new ArgumentNullException("requiredNullableUuid is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNullableUuid = requiredNullableUuid;
+            this.RequiredNotnullableUuid = requiredNotnullableUuid;
+            // to ensure "requiredNullableArrayOfString" is required (not null)
+            if (requiredNullableArrayOfString == null)
+            {
+                throw new ArgumentNullException("requiredNullableArrayOfString is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNullableArrayOfString = requiredNullableArrayOfString;
+            // to ensure "requiredNotnullableArrayOfString" is required (not null)
+            if (requiredNotnullableArrayOfString == null)
+            {
+                throw new ArgumentNullException("requiredNotnullableArrayOfString is a required property for RequiredClass and cannot be null");
+            }
+            this.RequiredNotnullableArrayOfString = requiredNotnullableArrayOfString;
+            this.NotRequiredNullableIntegerProp = notRequiredNullableIntegerProp;
+            this.NotRequiredNotnullableintegerProp = notRequiredNotnullableintegerProp;
+            this.NotrequiredNullableStringProp = notrequiredNullableStringProp;
+            this.NotrequiredNotnullableStringProp = notrequiredNotnullableStringProp;
+            this.NotrequiredNullableBooleanProp = notrequiredNullableBooleanProp;
+            this.NotrequiredNotnullableBooleanProp = notrequiredNotnullableBooleanProp;
+            this.NotRequiredNullableDateProp = notRequiredNullableDateProp;
+            this.NotRequiredNotnullableDateProp = notRequiredNotnullableDateProp;
+            this.NotrequiredNullableDatetimeProp = notrequiredNullableDatetimeProp;
+            this.NotrequiredNotnullableDatetimeProp = notrequiredNotnullableDatetimeProp;
+            this.NotrequiredNullableEnumInteger = notrequiredNullableEnumInteger;
+            this.NotrequiredNotnullableEnumInteger = notrequiredNotnullableEnumInteger;
+            this.NotrequiredNullableEnumIntegerOnly = notrequiredNullableEnumIntegerOnly;
+            this.NotrequiredNotnullableEnumIntegerOnly = notrequiredNotnullableEnumIntegerOnly;
+            this.NotrequiredNullableEnumString = notrequiredNullableEnumString;
+            this.NotrequiredNotnullableEnumString = notrequiredNotnullableEnumString;
+            this.NotrequiredNullableOuterEnumDefaultValue = notrequiredNullableOuterEnumDefaultValue;
+            this.NotrequiredNotnullableOuterEnumDefaultValue = notrequiredNotnullableOuterEnumDefaultValue;
+            this.NotrequiredNullableUuid = notrequiredNullableUuid;
+            this.NotrequiredNotnullableUuid = notrequiredNotnullableUuid;
+            this.NotrequiredNullableArrayOfString = notrequiredNullableArrayOfString;
+            this.NotrequiredNotnullableArrayOfString = notrequiredNotnullableArrayOfString;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableIntegerProp
+        /// </summary>
+        [DataMember(Name = "required_nullable_integer_prop", IsRequired = true, EmitDefaultValue = true)]
+        public int? RequiredNullableIntegerProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableintegerProp
+        /// </summary>
+        [DataMember(Name = "required_notnullableinteger_prop", IsRequired = true, EmitDefaultValue = true)]
+        public int RequiredNotnullableintegerProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotRequiredNullableIntegerProp
+        /// </summary>
+        [DataMember(Name = "not_required_nullable_integer_prop", EmitDefaultValue = true)]
+        public int? NotRequiredNullableIntegerProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotRequiredNotnullableintegerProp
+        /// </summary>
+        [DataMember(Name = "not_required_notnullableinteger_prop", EmitDefaultValue = false)]
+        public int NotRequiredNotnullableintegerProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableStringProp
+        /// </summary>
+        [DataMember(Name = "required_nullable_string_prop", IsRequired = true, EmitDefaultValue = true)]
+        public string RequiredNullableStringProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableStringProp
+        /// </summary>
+        [DataMember(Name = "required_notnullable_string_prop", IsRequired = true, EmitDefaultValue = true)]
+        public string RequiredNotnullableStringProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableStringProp
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_string_prop", EmitDefaultValue = true)]
+        public string NotrequiredNullableStringProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableStringProp
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_string_prop", EmitDefaultValue = false)]
+        public string NotrequiredNotnullableStringProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableBooleanProp
+        /// </summary>
+        [DataMember(Name = "required_nullable_boolean_prop", IsRequired = true, EmitDefaultValue = true)]
+        public bool? RequiredNullableBooleanProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableBooleanProp
+        /// </summary>
+        [DataMember(Name = "required_notnullable_boolean_prop", IsRequired = true, EmitDefaultValue = true)]
+        public bool RequiredNotnullableBooleanProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableBooleanProp
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_boolean_prop", EmitDefaultValue = true)]
+        public bool? NotrequiredNullableBooleanProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableBooleanProp
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_boolean_prop", EmitDefaultValue = true)]
+        public bool NotrequiredNotnullableBooleanProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableDateProp
+        /// </summary>
+        [DataMember(Name = "required_nullable_date_prop", IsRequired = true, EmitDefaultValue = true)]
+        [JsonConverter(typeof(OpenAPIDateConverter))]
+        public DateTime? RequiredNullableDateProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotNullableDateProp
+        /// </summary>
+        [DataMember(Name = "required_not_nullable_date_prop", IsRequired = true, EmitDefaultValue = true)]
+        [JsonConverter(typeof(OpenAPIDateConverter))]
+        public DateTime RequiredNotNullableDateProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotRequiredNullableDateProp
+        /// </summary>
+        [DataMember(Name = "not_required_nullable_date_prop", EmitDefaultValue = true)]
+        [JsonConverter(typeof(OpenAPIDateConverter))]
+        public DateTime? NotRequiredNullableDateProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotRequiredNotnullableDateProp
+        /// </summary>
+        [DataMember(Name = "not_required_notnullable_date_prop", EmitDefaultValue = false)]
+        [JsonConverter(typeof(OpenAPIDateConverter))]
+        public DateTime NotRequiredNotnullableDateProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableDatetimeProp
+        /// </summary>
+        [DataMember(Name = "required_notnullable_datetime_prop", IsRequired = true, EmitDefaultValue = true)]
+        public DateTime RequiredNotnullableDatetimeProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableDatetimeProp
+        /// </summary>
+        [DataMember(Name = "required_nullable_datetime_prop", IsRequired = true, EmitDefaultValue = true)]
+        public DateTime? RequiredNullableDatetimeProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableDatetimeProp
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_datetime_prop", EmitDefaultValue = true)]
+        public DateTime? NotrequiredNullableDatetimeProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableDatetimeProp
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_datetime_prop", EmitDefaultValue = false)]
+        public DateTime NotrequiredNotnullableDatetimeProp { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableUuid
+        /// </summary>
+        /// <example>72f98069-206d-4f12-9f12-3d1e525a8e84</example>
+        [DataMember(Name = "required_nullable_uuid", IsRequired = true, EmitDefaultValue = true)]
+        public Guid? RequiredNullableUuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableUuid
+        /// </summary>
+        /// <example>72f98069-206d-4f12-9f12-3d1e525a8e84</example>
+        [DataMember(Name = "required_notnullable_uuid", IsRequired = true, EmitDefaultValue = true)]
+        public Guid RequiredNotnullableUuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableUuid
+        /// </summary>
+        /// <example>72f98069-206d-4f12-9f12-3d1e525a8e84</example>
+        [DataMember(Name = "notrequired_nullable_uuid", EmitDefaultValue = true)]
+        public Guid? NotrequiredNullableUuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableUuid
+        /// </summary>
+        /// <example>72f98069-206d-4f12-9f12-3d1e525a8e84</example>
+        [DataMember(Name = "notrequired_notnullable_uuid", EmitDefaultValue = false)]
+        public Guid NotrequiredNotnullableUuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNullableArrayOfString
+        /// </summary>
+        [DataMember(Name = "required_nullable_array_of_string", IsRequired = true, EmitDefaultValue = true)]
+        public List<string> RequiredNullableArrayOfString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets RequiredNotnullableArrayOfString
+        /// </summary>
+        [DataMember(Name = "required_notnullable_array_of_string", IsRequired = true, EmitDefaultValue = true)]
+        public List<string> RequiredNotnullableArrayOfString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNullableArrayOfString
+        /// </summary>
+        [DataMember(Name = "notrequired_nullable_array_of_string", EmitDefaultValue = true)]
+        public List<string> NotrequiredNullableArrayOfString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets NotrequiredNotnullableArrayOfString
+        /// </summary>
+        [DataMember(Name = "notrequired_notnullable_array_of_string", EmitDefaultValue = false)]
+        public List<string> NotrequiredNotnullableArrayOfString { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class RequiredClass {\n");
+            sb.Append("  RequiredNullableIntegerProp: ").Append(RequiredNullableIntegerProp).Append("\n");
+            sb.Append("  RequiredNotnullableintegerProp: ").Append(RequiredNotnullableintegerProp).Append("\n");
+            sb.Append("  NotRequiredNullableIntegerProp: ").Append(NotRequiredNullableIntegerProp).Append("\n");
+            sb.Append("  NotRequiredNotnullableintegerProp: ").Append(NotRequiredNotnullableintegerProp).Append("\n");
+            sb.Append("  RequiredNullableStringProp: ").Append(RequiredNullableStringProp).Append("\n");
+            sb.Append("  RequiredNotnullableStringProp: ").Append(RequiredNotnullableStringProp).Append("\n");
+            sb.Append("  NotrequiredNullableStringProp: ").Append(NotrequiredNullableStringProp).Append("\n");
+            sb.Append("  NotrequiredNotnullableStringProp: ").Append(NotrequiredNotnullableStringProp).Append("\n");
+            sb.Append("  RequiredNullableBooleanProp: ").Append(RequiredNullableBooleanProp).Append("\n");
+            sb.Append("  RequiredNotnullableBooleanProp: ").Append(RequiredNotnullableBooleanProp).Append("\n");
+            sb.Append("  NotrequiredNullableBooleanProp: ").Append(NotrequiredNullableBooleanProp).Append("\n");
+            sb.Append("  NotrequiredNotnullableBooleanProp: ").Append(NotrequiredNotnullableBooleanProp).Append("\n");
+            sb.Append("  RequiredNullableDateProp: ").Append(RequiredNullableDateProp).Append("\n");
+            sb.Append("  RequiredNotNullableDateProp: ").Append(RequiredNotNullableDateProp).Append("\n");
+            sb.Append("  NotRequiredNullableDateProp: ").Append(NotRequiredNullableDateProp).Append("\n");
+            sb.Append("  NotRequiredNotnullableDateProp: ").Append(NotRequiredNotnullableDateProp).Append("\n");
+            sb.Append("  RequiredNotnullableDatetimeProp: ").Append(RequiredNotnullableDatetimeProp).Append("\n");
+            sb.Append("  RequiredNullableDatetimeProp: ").Append(RequiredNullableDatetimeProp).Append("\n");
+            sb.Append("  NotrequiredNullableDatetimeProp: ").Append(NotrequiredNullableDatetimeProp).Append("\n");
+            sb.Append("  NotrequiredNotnullableDatetimeProp: ").Append(NotrequiredNotnullableDatetimeProp).Append("\n");
+            sb.Append("  RequiredNullableEnumInteger: ").Append(RequiredNullableEnumInteger).Append("\n");
+            sb.Append("  RequiredNotnullableEnumInteger: ").Append(RequiredNotnullableEnumInteger).Append("\n");
+            sb.Append("  NotrequiredNullableEnumInteger: ").Append(NotrequiredNullableEnumInteger).Append("\n");
+            sb.Append("  NotrequiredNotnullableEnumInteger: ").Append(NotrequiredNotnullableEnumInteger).Append("\n");
+            sb.Append("  RequiredNullableEnumIntegerOnly: ").Append(RequiredNullableEnumIntegerOnly).Append("\n");
+            sb.Append("  RequiredNotnullableEnumIntegerOnly: ").Append(RequiredNotnullableEnumIntegerOnly).Append("\n");
+            sb.Append("  NotrequiredNullableEnumIntegerOnly: ").Append(NotrequiredNullableEnumIntegerOnly).Append("\n");
+            sb.Append("  NotrequiredNotnullableEnumIntegerOnly: ").Append(NotrequiredNotnullableEnumIntegerOnly).Append("\n");
+            sb.Append("  RequiredNotnullableEnumString: ").Append(RequiredNotnullableEnumString).Append("\n");
+            sb.Append("  RequiredNullableEnumString: ").Append(RequiredNullableEnumString).Append("\n");
+            sb.Append("  NotrequiredNullableEnumString: ").Append(NotrequiredNullableEnumString).Append("\n");
+            sb.Append("  NotrequiredNotnullableEnumString: ").Append(NotrequiredNotnullableEnumString).Append("\n");
+            sb.Append("  RequiredNullableOuterEnumDefaultValue: ").Append(RequiredNullableOuterEnumDefaultValue).Append("\n");
+            sb.Append("  RequiredNotnullableOuterEnumDefaultValue: ").Append(RequiredNotnullableOuterEnumDefaultValue).Append("\n");
+            sb.Append("  NotrequiredNullableOuterEnumDefaultValue: ").Append(NotrequiredNullableOuterEnumDefaultValue).Append("\n");
+            sb.Append("  NotrequiredNotnullableOuterEnumDefaultValue: ").Append(NotrequiredNotnullableOuterEnumDefaultValue).Append("\n");
+            sb.Append("  RequiredNullableUuid: ").Append(RequiredNullableUuid).Append("\n");
+            sb.Append("  RequiredNotnullableUuid: ").Append(RequiredNotnullableUuid).Append("\n");
+            sb.Append("  NotrequiredNullableUuid: ").Append(NotrequiredNullableUuid).Append("\n");
+            sb.Append("  NotrequiredNotnullableUuid: ").Append(NotrequiredNotnullableUuid).Append("\n");
+            sb.Append("  RequiredNullableArrayOfString: ").Append(RequiredNullableArrayOfString).Append("\n");
+            sb.Append("  RequiredNotnullableArrayOfString: ").Append(RequiredNotnullableArrayOfString).Append("\n");
+            sb.Append("  NotrequiredNullableArrayOfString: ").Append(NotrequiredNullableArrayOfString).Append("\n");
+            sb.Append("  NotrequiredNotnullableArrayOfString: ").Append(NotrequiredNotnullableArrayOfString).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as RequiredClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if RequiredClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of RequiredClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(RequiredClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.RequiredNullableIntegerProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNullableIntegerProp.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.RequiredNotnullableintegerProp.GetHashCode();
+                if (this.NotRequiredNullableIntegerProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotRequiredNullableIntegerProp.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.NotRequiredNotnullableintegerProp.GetHashCode();
+                if (this.RequiredNullableStringProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNullableStringProp.GetHashCode();
+                }
+                if (this.RequiredNotnullableStringProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNotnullableStringProp.GetHashCode();
+                }
+                if (this.NotrequiredNullableStringProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNullableStringProp.GetHashCode();
+                }
+                if (this.NotrequiredNotnullableStringProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNotnullableStringProp.GetHashCode();
+                }
+                if (this.RequiredNullableBooleanProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNullableBooleanProp.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.RequiredNotnullableBooleanProp.GetHashCode();
+                if (this.NotrequiredNullableBooleanProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNullableBooleanProp.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.NotrequiredNotnullableBooleanProp.GetHashCode();
+                if (this.RequiredNullableDateProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNullableDateProp.GetHashCode();
+                }
+                if (this.RequiredNotNullableDateProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNotNullableDateProp.GetHashCode();
+                }
+                if (this.NotRequiredNullableDateProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotRequiredNullableDateProp.GetHashCode();
+                }
+                if (this.NotRequiredNotnullableDateProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotRequiredNotnullableDateProp.GetHashCode();
+                }
+                if (this.RequiredNotnullableDatetimeProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNotnullableDatetimeProp.GetHashCode();
+                }
+                if (this.RequiredNullableDatetimeProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNullableDatetimeProp.GetHashCode();
+                }
+                if (this.NotrequiredNullableDatetimeProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNullableDatetimeProp.GetHashCode();
+                }
+                if (this.NotrequiredNotnullableDatetimeProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNotnullableDatetimeProp.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.RequiredNullableEnumInteger.GetHashCode();
+                hashCode = (hashCode * 59) + this.RequiredNotnullableEnumInteger.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNullableEnumInteger.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNotnullableEnumInteger.GetHashCode();
+                hashCode = (hashCode * 59) + this.RequiredNullableEnumIntegerOnly.GetHashCode();
+                hashCode = (hashCode * 59) + this.RequiredNotnullableEnumIntegerOnly.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNullableEnumIntegerOnly.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNotnullableEnumIntegerOnly.GetHashCode();
+                hashCode = (hashCode * 59) + this.RequiredNotnullableEnumString.GetHashCode();
+                hashCode = (hashCode * 59) + this.RequiredNullableEnumString.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNullableEnumString.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNotnullableEnumString.GetHashCode();
+                hashCode = (hashCode * 59) + this.RequiredNullableOuterEnumDefaultValue.GetHashCode();
+                hashCode = (hashCode * 59) + this.RequiredNotnullableOuterEnumDefaultValue.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNullableOuterEnumDefaultValue.GetHashCode();
+                hashCode = (hashCode * 59) + this.NotrequiredNotnullableOuterEnumDefaultValue.GetHashCode();
+                if (this.RequiredNullableUuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNullableUuid.GetHashCode();
+                }
+                if (this.RequiredNotnullableUuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNotnullableUuid.GetHashCode();
+                }
+                if (this.NotrequiredNullableUuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNullableUuid.GetHashCode();
+                }
+                if (this.NotrequiredNotnullableUuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNotnullableUuid.GetHashCode();
+                }
+                if (this.RequiredNullableArrayOfString != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNullableArrayOfString.GetHashCode();
+                }
+                if (this.RequiredNotnullableArrayOfString != null)
+                {
+                    hashCode = (hashCode * 59) + this.RequiredNotnullableArrayOfString.GetHashCode();
+                }
+                if (this.NotrequiredNullableArrayOfString != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNullableArrayOfString.GetHashCode();
+                }
+                if (this.NotrequiredNotnullableArrayOfString != null)
+                {
+                    hashCode = (hashCode * 59) + this.NotrequiredNotnullableArrayOfString.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Return.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Return.cs
new file mode 100644
index 00000000000..aaab21dc58c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Return.cs
@@ -0,0 +1,129 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Model for testing reserved words
+    /// </summary>
+    [DataContract(Name = "Return")]
+    public partial class Return : IEquatable<Return>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Return" /> class.
+        /// </summary>
+        /// <param name="varReturn">varReturn.</param>
+        public Return(int varReturn = default(int))
+        {
+            this.VarReturn = varReturn;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets VarReturn
+        /// </summary>
+        [DataMember(Name = "return", EmitDefaultValue = false)]
+        public int VarReturn { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Return {\n");
+            sb.Append("  VarReturn: ").Append(VarReturn).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Return).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Return instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Return to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Return input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.VarReturn.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RolesReportsHash.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RolesReportsHash.cs
new file mode 100644
index 00000000000..50995f4a505
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RolesReportsHash.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Role report Hash
+    /// </summary>
+    [DataContract(Name = "RolesReportsHash")]
+    public partial class RolesReportsHash : IEquatable<RolesReportsHash>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="RolesReportsHash" /> class.
+        /// </summary>
+        /// <param name="roleUuid">roleUuid.</param>
+        /// <param name="role">role.</param>
+        public RolesReportsHash(Guid roleUuid = default(Guid), RolesReportsHashRole role = default(RolesReportsHashRole))
+        {
+            this.RoleUuid = roleUuid;
+            this.Role = role;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets RoleUuid
+        /// </summary>
+        [DataMember(Name = "role_uuid", EmitDefaultValue = false)]
+        public Guid RoleUuid { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Role
+        /// </summary>
+        [DataMember(Name = "role", EmitDefaultValue = false)]
+        public RolesReportsHashRole Role { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class RolesReportsHash {\n");
+            sb.Append("  RoleUuid: ").Append(RoleUuid).Append("\n");
+            sb.Append("  Role: ").Append(Role).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as RolesReportsHash).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if RolesReportsHash instances are equal
+        /// </summary>
+        /// <param name="input">Instance of RolesReportsHash to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(RolesReportsHash input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.RoleUuid != null)
+                {
+                    hashCode = (hashCode * 59) + this.RoleUuid.GetHashCode();
+                }
+                if (this.Role != null)
+                {
+                    hashCode = (hashCode * 59) + this.Role.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RolesReportsHashRole.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RolesReportsHashRole.cs
new file mode 100644
index 00000000000..a2aa2f39a49
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/RolesReportsHashRole.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// RolesReportsHashRole
+    /// </summary>
+    [DataContract(Name = "RolesReportsHash_role")]
+    public partial class RolesReportsHashRole : IEquatable<RolesReportsHashRole>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="RolesReportsHashRole" /> class.
+        /// </summary>
+        /// <param name="name">name.</param>
+        public RolesReportsHashRole(string name = default(string))
+        {
+            this.Name = name;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", EmitDefaultValue = false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class RolesReportsHashRole {\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as RolesReportsHashRole).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if RolesReportsHashRole instances are equal
+        /// </summary>
+        /// <param name="input">Instance of RolesReportsHashRole to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(RolesReportsHashRole input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Name != null)
+                {
+                    hashCode = (hashCode * 59) + this.Name.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ScaleneTriangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
new file mode 100644
index 00000000000..f50d01492be
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
@@ -0,0 +1,163 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ScaleneTriangle
+    /// </summary>
+    [DataContract(Name = "ScaleneTriangle")]
+    public partial class ScaleneTriangle : IEquatable<ScaleneTriangle>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ScaleneTriangle" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected ScaleneTriangle()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ScaleneTriangle" /> class.
+        /// </summary>
+        /// <param name="shapeType">shapeType (required).</param>
+        /// <param name="triangleType">triangleType (required).</param>
+        public ScaleneTriangle(string shapeType = default(string), string triangleType = default(string))
+        {
+            // to ensure "shapeType" is required (not null)
+            if (shapeType == null)
+            {
+                throw new ArgumentNullException("shapeType is a required property for ScaleneTriangle and cannot be null");
+            }
+            this.ShapeType = shapeType;
+            // to ensure "triangleType" is required (not null)
+            if (triangleType == null)
+            {
+                throw new ArgumentNullException("triangleType is a required property for ScaleneTriangle and cannot be null");
+            }
+            this.TriangleType = triangleType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ShapeType
+        /// </summary>
+        [DataMember(Name = "shapeType", IsRequired = true, EmitDefaultValue = true)]
+        public string ShapeType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets TriangleType
+        /// </summary>
+        [DataMember(Name = "triangleType", IsRequired = true, EmitDefaultValue = true)]
+        public string TriangleType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ScaleneTriangle {\n");
+            sb.Append("  ShapeType: ").Append(ShapeType).Append("\n");
+            sb.Append("  TriangleType: ").Append(TriangleType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ScaleneTriangle).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ScaleneTriangle instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ScaleneTriangle to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ScaleneTriangle input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ShapeType != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShapeType.GetHashCode();
+                }
+                if (this.TriangleType != null)
+                {
+                    hashCode = (hashCode * 59) + this.TriangleType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Shape.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Shape.cs
new file mode 100644
index 00000000000..7cfa900bcf6
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Shape.cs
@@ -0,0 +1,315 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Shape
+    /// </summary>
+    [JsonConverter(typeof(ShapeJsonConverter))]
+    [DataContract(Name = "Shape")]
+    public partial class Shape : AbstractOpenAPISchema, IEquatable<Shape>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Shape" /> class
+        /// with the <see cref="Triangle" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Triangle.</param>
+        public Shape(Triangle actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Shape" /> class
+        /// with the <see cref="Quadrilateral" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Quadrilateral.</param>
+        public Shape(Quadrilateral actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(Quadrilateral))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Triangle))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: Quadrilateral, Triangle");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Triangle`. If the actual instance is not `Triangle`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Triangle</returns>
+        public Triangle GetTriangle()
+        {
+            return (Triangle)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Quadrilateral`. If the actual instance is not `Quadrilateral`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Quadrilateral</returns>
+        public Quadrilateral GetQuadrilateral()
+        {
+            return (Quadrilateral)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Shape {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, Shape.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of Shape
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of Shape</returns>
+        public static Shape FromJson(string jsonString)
+        {
+            Shape newShape = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newShape;
+            }
+
+            try
+            {
+                var discriminatorObj = JObject.Parse(jsonString)["shapeType"];
+                string discriminatorValue =  discriminatorObj == null ?string.Empty :discriminatorObj.ToString();
+                switch (discriminatorValue)
+                {
+                    case "Quadrilateral":
+                        newShape = new Shape(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, Shape.AdditionalPropertiesSerializerSettings));
+                        return newShape;
+                    case "Triangle":
+                        newShape = new Shape(JsonConvert.DeserializeObject<Triangle>(jsonString, Shape.AdditionalPropertiesSerializerSettings));
+                        return newShape;
+                    default:
+                        System.Diagnostics.Debug.WriteLine(string.Format("Failed to lookup discriminator value `{0}` for Shape. Possible values: Quadrilateral Triangle", discriminatorValue));
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to parse the json data : `{0}` {1}", jsonString, ex.ToString()));
+            }
+
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Quadrilateral).GetProperty("AdditionalProperties") == null)
+                {
+                    newShape = new Shape(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, Shape.SerializerSettings));
+                }
+                else
+                {
+                    newShape = new Shape(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, Shape.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Quadrilateral");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Quadrilateral: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Triangle).GetProperty("AdditionalProperties") == null)
+                {
+                    newShape = new Shape(JsonConvert.DeserializeObject<Triangle>(jsonString, Shape.SerializerSettings));
+                }
+                else
+                {
+                    newShape = new Shape(JsonConvert.DeserializeObject<Triangle>(jsonString, Shape.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Triangle");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Triangle: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newShape;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Shape).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Shape instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Shape to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Shape input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for Shape
+    /// </summary>
+    public class ShapeJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(Shape).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return Shape.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ShapeInterface.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ShapeInterface.cs
new file mode 100644
index 00000000000..c03107d52ee
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ShapeInterface.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ShapeInterface
+    /// </summary>
+    [DataContract(Name = "ShapeInterface")]
+    public partial class ShapeInterface : IEquatable<ShapeInterface>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ShapeInterface" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected ShapeInterface()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ShapeInterface" /> class.
+        /// </summary>
+        /// <param name="shapeType">shapeType (required).</param>
+        public ShapeInterface(string shapeType = default(string))
+        {
+            // to ensure "shapeType" is required (not null)
+            if (shapeType == null)
+            {
+                throw new ArgumentNullException("shapeType is a required property for ShapeInterface and cannot be null");
+            }
+            this.ShapeType = shapeType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ShapeType
+        /// </summary>
+        [DataMember(Name = "shapeType", IsRequired = true, EmitDefaultValue = true)]
+        public string ShapeType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ShapeInterface {\n");
+            sb.Append("  ShapeType: ").Append(ShapeType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ShapeInterface).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ShapeInterface instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ShapeInterface to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ShapeInterface input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ShapeType != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShapeType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ShapeOrNull.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ShapeOrNull.cs
new file mode 100644
index 00000000000..1d618195f4c
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ShapeOrNull.cs
@@ -0,0 +1,324 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// The value may be a shape or the &#39;null&#39; value. This is introduced in OAS schema &gt;&#x3D; 3.1.
+    /// </summary>
+    [JsonConverter(typeof(ShapeOrNullJsonConverter))]
+    [DataContract(Name = "ShapeOrNull")]
+    public partial class ShapeOrNull : AbstractOpenAPISchema, IEquatable<ShapeOrNull>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ShapeOrNull" /> class.
+        /// </summary>
+        public ShapeOrNull()
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ShapeOrNull" /> class
+        /// with the <see cref="Triangle" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Triangle.</param>
+        public ShapeOrNull(Triangle actualInstance)
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ShapeOrNull" /> class
+        /// with the <see cref="Quadrilateral" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of Quadrilateral.</param>
+        public ShapeOrNull(Quadrilateral actualInstance)
+        {
+            this.IsNullable = true;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance;
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(Quadrilateral))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(Triangle))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: Quadrilateral, Triangle");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Triangle`. If the actual instance is not `Triangle`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Triangle</returns>
+        public Triangle GetTriangle()
+        {
+            return (Triangle)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `Quadrilateral`. If the actual instance is not `Quadrilateral`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of Quadrilateral</returns>
+        public Quadrilateral GetQuadrilateral()
+        {
+            return (Quadrilateral)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class ShapeOrNull {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, ShapeOrNull.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of ShapeOrNull
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of ShapeOrNull</returns>
+        public static ShapeOrNull FromJson(string jsonString)
+        {
+            ShapeOrNull newShapeOrNull = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newShapeOrNull;
+            }
+
+            try
+            {
+                var discriminatorObj = JObject.Parse(jsonString)["shapeType"];
+                string discriminatorValue =  discriminatorObj == null ?string.Empty :discriminatorObj.ToString();
+                switch (discriminatorValue)
+                {
+                    case "Quadrilateral":
+                        newShapeOrNull = new ShapeOrNull(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, ShapeOrNull.AdditionalPropertiesSerializerSettings));
+                        return newShapeOrNull;
+                    case "Triangle":
+                        newShapeOrNull = new ShapeOrNull(JsonConvert.DeserializeObject<Triangle>(jsonString, ShapeOrNull.AdditionalPropertiesSerializerSettings));
+                        return newShapeOrNull;
+                    default:
+                        System.Diagnostics.Debug.WriteLine(string.Format("Failed to lookup discriminator value `{0}` for ShapeOrNull. Possible values: Quadrilateral Triangle", discriminatorValue));
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to parse the json data : `{0}` {1}", jsonString, ex.ToString()));
+            }
+
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Quadrilateral).GetProperty("AdditionalProperties") == null)
+                {
+                    newShapeOrNull = new ShapeOrNull(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, ShapeOrNull.SerializerSettings));
+                }
+                else
+                {
+                    newShapeOrNull = new ShapeOrNull(JsonConvert.DeserializeObject<Quadrilateral>(jsonString, ShapeOrNull.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Quadrilateral");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Quadrilateral: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(Triangle).GetProperty("AdditionalProperties") == null)
+                {
+                    newShapeOrNull = new ShapeOrNull(JsonConvert.DeserializeObject<Triangle>(jsonString, ShapeOrNull.SerializerSettings));
+                }
+                else
+                {
+                    newShapeOrNull = new ShapeOrNull(JsonConvert.DeserializeObject<Triangle>(jsonString, ShapeOrNull.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("Triangle");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into Triangle: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newShapeOrNull;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ShapeOrNull).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ShapeOrNull instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ShapeOrNull to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ShapeOrNull input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for ShapeOrNull
+    /// </summary>
+    public class ShapeOrNullJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(ShapeOrNull).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return ShapeOrNull.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
new file mode 100644
index 00000000000..f589c821c40
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
@@ -0,0 +1,163 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// SimpleQuadrilateral
+    /// </summary>
+    [DataContract(Name = "SimpleQuadrilateral")]
+    public partial class SimpleQuadrilateral : IEquatable<SimpleQuadrilateral>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SimpleQuadrilateral" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected SimpleQuadrilateral()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SimpleQuadrilateral" /> class.
+        /// </summary>
+        /// <param name="shapeType">shapeType (required).</param>
+        /// <param name="quadrilateralType">quadrilateralType (required).</param>
+        public SimpleQuadrilateral(string shapeType = default(string), string quadrilateralType = default(string))
+        {
+            // to ensure "shapeType" is required (not null)
+            if (shapeType == null)
+            {
+                throw new ArgumentNullException("shapeType is a required property for SimpleQuadrilateral and cannot be null");
+            }
+            this.ShapeType = shapeType;
+            // to ensure "quadrilateralType" is required (not null)
+            if (quadrilateralType == null)
+            {
+                throw new ArgumentNullException("quadrilateralType is a required property for SimpleQuadrilateral and cannot be null");
+            }
+            this.QuadrilateralType = quadrilateralType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ShapeType
+        /// </summary>
+        [DataMember(Name = "shapeType", IsRequired = true, EmitDefaultValue = true)]
+        public string ShapeType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets QuadrilateralType
+        /// </summary>
+        [DataMember(Name = "quadrilateralType", IsRequired = true, EmitDefaultValue = true)]
+        public string QuadrilateralType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class SimpleQuadrilateral {\n");
+            sb.Append("  ShapeType: ").Append(ShapeType).Append("\n");
+            sb.Append("  QuadrilateralType: ").Append(QuadrilateralType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as SimpleQuadrilateral).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if SimpleQuadrilateral instances are equal
+        /// </summary>
+        /// <param name="input">Instance of SimpleQuadrilateral to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(SimpleQuadrilateral input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ShapeType != null)
+                {
+                    hashCode = (hashCode * 59) + this.ShapeType.GetHashCode();
+                }
+                if (this.QuadrilateralType != null)
+                {
+                    hashCode = (hashCode * 59) + this.QuadrilateralType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/SpecialModelName.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/SpecialModelName.cs
new file mode 100644
index 00000000000..ca5adcd816b
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/SpecialModelName.cs
@@ -0,0 +1,142 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// SpecialModelName
+    /// </summary>
+    [DataContract(Name = "_special_model.name_")]
+    public partial class SpecialModelName : IEquatable<SpecialModelName>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SpecialModelName" /> class.
+        /// </summary>
+        /// <param name="specialPropertyName">specialPropertyName.</param>
+        /// <param name="varSpecialModelName">varSpecialModelName.</param>
+        public SpecialModelName(long specialPropertyName = default(long), string varSpecialModelName = default(string))
+        {
+            this.SpecialPropertyName = specialPropertyName;
+            this.VarSpecialModelName = varSpecialModelName;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets SpecialPropertyName
+        /// </summary>
+        [DataMember(Name = "$special[property.name]", EmitDefaultValue = false)]
+        public long SpecialPropertyName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets VarSpecialModelName
+        /// </summary>
+        [DataMember(Name = "_special_model.name_", EmitDefaultValue = false)]
+        public string VarSpecialModelName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class SpecialModelName {\n");
+            sb.Append("  SpecialPropertyName: ").Append(SpecialPropertyName).Append("\n");
+            sb.Append("  VarSpecialModelName: ").Append(VarSpecialModelName).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as SpecialModelName).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if SpecialModelName instances are equal
+        /// </summary>
+        /// <param name="input">Instance of SpecialModelName to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(SpecialModelName input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.SpecialPropertyName.GetHashCode();
+                if (this.VarSpecialModelName != null)
+                {
+                    hashCode = (hashCode * 59) + this.VarSpecialModelName.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Tag.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Tag.cs
new file mode 100644
index 00000000000..ec78b91f125
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Tag.cs
@@ -0,0 +1,142 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Tag
+    /// </summary>
+    [DataContract(Name = "Tag")]
+    public partial class Tag : IEquatable<Tag>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Tag" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="name">name.</param>
+        public Tag(long id = default(long), string name = default(string))
+        {
+            this.Id = id;
+            this.Name = name;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", EmitDefaultValue = false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Tag {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Tag).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Tag instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Tag to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Tag input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Id.GetHashCode();
+                if (this.Name != null)
+                {
+                    hashCode = (hashCode * 59) + this.Name.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs
new file mode 100644
index 00000000000..b89ff43ced7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordList.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// TestCollectionEndingWithWordList
+    /// </summary>
+    [DataContract(Name = "TestCollectionEndingWithWordList")]
+    public partial class TestCollectionEndingWithWordList : IEquatable<TestCollectionEndingWithWordList>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TestCollectionEndingWithWordList" /> class.
+        /// </summary>
+        /// <param name="value">value.</param>
+        public TestCollectionEndingWithWordList(string value = default(string))
+        {
+            this.Value = value;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Value
+        /// </summary>
+        [DataMember(Name = "value", EmitDefaultValue = false)]
+        public string Value { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class TestCollectionEndingWithWordList {\n");
+            sb.Append("  Value: ").Append(Value).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as TestCollectionEndingWithWordList).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if TestCollectionEndingWithWordList instances are equal
+        /// </summary>
+        /// <param name="input">Instance of TestCollectionEndingWithWordList to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(TestCollectionEndingWithWordList input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.Value != null)
+                {
+                    hashCode = (hashCode * 59) + this.Value.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs
new file mode 100644
index 00000000000..54d4db6cf28
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestCollectionEndingWithWordListObject.cs
@@ -0,0 +1,132 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// TestCollectionEndingWithWordListObject
+    /// </summary>
+    [DataContract(Name = "TestCollectionEndingWithWordListObject")]
+    public partial class TestCollectionEndingWithWordListObject : IEquatable<TestCollectionEndingWithWordListObject>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TestCollectionEndingWithWordListObject" /> class.
+        /// </summary>
+        /// <param name="testCollectionEndingWithWordList">testCollectionEndingWithWordList.</param>
+        public TestCollectionEndingWithWordListObject(List<TestCollectionEndingWithWordList> testCollectionEndingWithWordList = default(List<TestCollectionEndingWithWordList>))
+        {
+            this.TestCollectionEndingWithWordList = testCollectionEndingWithWordList;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets TestCollectionEndingWithWordList
+        /// </summary>
+        [DataMember(Name = "TestCollectionEndingWithWordList", EmitDefaultValue = false)]
+        public List<TestCollectionEndingWithWordList> TestCollectionEndingWithWordList { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class TestCollectionEndingWithWordListObject {\n");
+            sb.Append("  TestCollectionEndingWithWordList: ").Append(TestCollectionEndingWithWordList).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as TestCollectionEndingWithWordListObject).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if TestCollectionEndingWithWordListObject instances are equal
+        /// </summary>
+        /// <param name="input">Instance of TestCollectionEndingWithWordListObject to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(TestCollectionEndingWithWordListObject input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.TestCollectionEndingWithWordList != null)
+                {
+                    hashCode = (hashCode * 59) + this.TestCollectionEndingWithWordList.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs
new file mode 100644
index 00000000000..e668ef1fe4e
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TestInlineFreeformAdditionalPropertiesRequest.cs
@@ -0,0 +1,143 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// TestInlineFreeformAdditionalPropertiesRequest
+    /// </summary>
+    [DataContract(Name = "testInlineFreeformAdditionalProperties_request")]
+    public partial class TestInlineFreeformAdditionalPropertiesRequest : Dictionary<String, Object>, IEquatable<TestInlineFreeformAdditionalPropertiesRequest>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TestInlineFreeformAdditionalPropertiesRequest" /> class.
+        /// </summary>
+        /// <param name="someProperty">someProperty.</param>
+        public TestInlineFreeformAdditionalPropertiesRequest(string someProperty = default(string)) : base()
+        {
+            this.SomeProperty = someProperty;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets SomeProperty
+        /// </summary>
+        [DataMember(Name = "someProperty", EmitDefaultValue = false)]
+        public string SomeProperty { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class TestInlineFreeformAdditionalPropertiesRequest {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  SomeProperty: ").Append(SomeProperty).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as TestInlineFreeformAdditionalPropertiesRequest).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if TestInlineFreeformAdditionalPropertiesRequest instances are equal
+        /// </summary>
+        /// <param name="input">Instance of TestInlineFreeformAdditionalPropertiesRequest to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(TestInlineFreeformAdditionalPropertiesRequest input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                if (this.SomeProperty != null)
+                {
+                    hashCode = (hashCode * 59) + this.SomeProperty.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Triangle.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Triangle.cs
new file mode 100644
index 00000000000..a410bce92bf
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Triangle.cs
@@ -0,0 +1,364 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using JsonSubTypes;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+using System.Reflection;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Triangle
+    /// </summary>
+    [JsonConverter(typeof(TriangleJsonConverter))]
+    [DataContract(Name = "Triangle")]
+    public partial class Triangle : AbstractOpenAPISchema, IEquatable<Triangle>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Triangle" /> class
+        /// with the <see cref="EquilateralTriangle" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of EquilateralTriangle.</param>
+        public Triangle(EquilateralTriangle actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Triangle" /> class
+        /// with the <see cref="IsoscelesTriangle" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of IsoscelesTriangle.</param>
+        public Triangle(IsoscelesTriangle actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Triangle" /> class
+        /// with the <see cref="ScaleneTriangle" /> class
+        /// </summary>
+        /// <param name="actualInstance">An instance of ScaleneTriangle.</param>
+        public Triangle(ScaleneTriangle actualInstance)
+        {
+            this.IsNullable = false;
+            this.SchemaType= "oneOf";
+            this.ActualInstance = actualInstance ?? throw new ArgumentException("Invalid instance found. Must not be null.");
+        }
+
+
+        private Object _actualInstance;
+
+        /// <summary>
+        /// Gets or Sets ActualInstance
+        /// </summary>
+        public override Object ActualInstance
+        {
+            get
+            {
+                return _actualInstance;
+            }
+            set
+            {
+                if (value.GetType() == typeof(EquilateralTriangle))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(IsoscelesTriangle))
+                {
+                    this._actualInstance = value;
+                }
+                else if (value.GetType() == typeof(ScaleneTriangle))
+                {
+                    this._actualInstance = value;
+                }
+                else
+                {
+                    throw new ArgumentException("Invalid instance found. Must be the following types: EquilateralTriangle, IsoscelesTriangle, ScaleneTriangle");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Get the actual instance of `EquilateralTriangle`. If the actual instance is not `EquilateralTriangle`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of EquilateralTriangle</returns>
+        public EquilateralTriangle GetEquilateralTriangle()
+        {
+            return (EquilateralTriangle)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `IsoscelesTriangle`. If the actual instance is not `IsoscelesTriangle`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of IsoscelesTriangle</returns>
+        public IsoscelesTriangle GetIsoscelesTriangle()
+        {
+            return (IsoscelesTriangle)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Get the actual instance of `ScaleneTriangle`. If the actual instance is not `ScaleneTriangle`,
+        /// the InvalidClassException will be thrown
+        /// </summary>
+        /// <returns>An instance of ScaleneTriangle</returns>
+        public ScaleneTriangle GetScaleneTriangle()
+        {
+            return (ScaleneTriangle)this.ActualInstance;
+        }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Triangle {\n");
+            sb.Append("  ActualInstance: ").Append(this.ActualInstance).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public override string ToJson()
+        {
+            return JsonConvert.SerializeObject(this.ActualInstance, Triangle.SerializerSettings);
+        }
+
+        /// <summary>
+        /// Converts the JSON string into an instance of Triangle
+        /// </summary>
+        /// <param name="jsonString">JSON string</param>
+        /// <returns>An instance of Triangle</returns>
+        public static Triangle FromJson(string jsonString)
+        {
+            Triangle newTriangle = null;
+
+            if (string.IsNullOrEmpty(jsonString))
+            {
+                return newTriangle;
+            }
+
+            try
+            {
+                var discriminatorObj = JObject.Parse(jsonString)["triangleType"];
+                string discriminatorValue =  discriminatorObj == null ?string.Empty :discriminatorObj.ToString();
+                switch (discriminatorValue)
+                {
+                    case "EquilateralTriangle":
+                        newTriangle = new Triangle(JsonConvert.DeserializeObject<EquilateralTriangle>(jsonString, Triangle.AdditionalPropertiesSerializerSettings));
+                        return newTriangle;
+                    case "IsoscelesTriangle":
+                        newTriangle = new Triangle(JsonConvert.DeserializeObject<IsoscelesTriangle>(jsonString, Triangle.AdditionalPropertiesSerializerSettings));
+                        return newTriangle;
+                    case "ScaleneTriangle":
+                        newTriangle = new Triangle(JsonConvert.DeserializeObject<ScaleneTriangle>(jsonString, Triangle.AdditionalPropertiesSerializerSettings));
+                        return newTriangle;
+                    default:
+                        System.Diagnostics.Debug.WriteLine(string.Format("Failed to lookup discriminator value `{0}` for Triangle. Possible values: EquilateralTriangle IsoscelesTriangle ScaleneTriangle", discriminatorValue));
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to parse the json data : `{0}` {1}", jsonString, ex.ToString()));
+            }
+
+            int match = 0;
+            List<string> matchedTypes = new List<string>();
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(EquilateralTriangle).GetProperty("AdditionalProperties") == null)
+                {
+                    newTriangle = new Triangle(JsonConvert.DeserializeObject<EquilateralTriangle>(jsonString, Triangle.SerializerSettings));
+                }
+                else
+                {
+                    newTriangle = new Triangle(JsonConvert.DeserializeObject<EquilateralTriangle>(jsonString, Triangle.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("EquilateralTriangle");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into EquilateralTriangle: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(IsoscelesTriangle).GetProperty("AdditionalProperties") == null)
+                {
+                    newTriangle = new Triangle(JsonConvert.DeserializeObject<IsoscelesTriangle>(jsonString, Triangle.SerializerSettings));
+                }
+                else
+                {
+                    newTriangle = new Triangle(JsonConvert.DeserializeObject<IsoscelesTriangle>(jsonString, Triangle.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("IsoscelesTriangle");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into IsoscelesTriangle: {1}", jsonString, exception.ToString()));
+            }
+
+            try
+            {
+                // if it does not contains "AdditionalProperties", use SerializerSettings to deserialize
+                if (typeof(ScaleneTriangle).GetProperty("AdditionalProperties") == null)
+                {
+                    newTriangle = new Triangle(JsonConvert.DeserializeObject<ScaleneTriangle>(jsonString, Triangle.SerializerSettings));
+                }
+                else
+                {
+                    newTriangle = new Triangle(JsonConvert.DeserializeObject<ScaleneTriangle>(jsonString, Triangle.AdditionalPropertiesSerializerSettings));
+                }
+                matchedTypes.Add("ScaleneTriangle");
+                match++;
+            }
+            catch (Exception exception)
+            {
+                // deserialization failed, try the next one
+                System.Diagnostics.Debug.WriteLine(string.Format("Failed to deserialize `{0}` into ScaleneTriangle: {1}", jsonString, exception.ToString()));
+            }
+
+            if (match == 0)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` cannot be deserialized into any schema defined.");
+            }
+            else if (match > 1)
+            {
+                throw new InvalidDataException("The JSON string `" + jsonString + "` incorrectly matches more than one schema (should be exactly one match): " + String.Join(",", matchedTypes));
+            }
+
+            // deserialization is considered successful at this point if no exception has been thrown.
+            return newTriangle;
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Triangle).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Triangle instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Triangle to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Triangle input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.ActualInstance != null)
+                    hashCode = hashCode * 59 + this.ActualInstance.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+    /// <summary>
+    /// Custom JSON converter for Triangle
+    /// </summary>
+    public class TriangleJsonConverter : JsonConverter
+    {
+        /// <summary>
+        /// To write the JSON string
+        /// </summary>
+        /// <param name="writer">JSON writer</param>
+        /// <param name="value">Object to be converted into a JSON string</param>
+        /// <param name="serializer">JSON Serializer</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            writer.WriteRawValue((string)(typeof(Triangle).GetMethod("ToJson").Invoke(value, null)));
+        }
+
+        /// <summary>
+        /// To convert a JSON string into an object
+        /// </summary>
+        /// <param name="reader">JSON reader</param>
+        /// <param name="objectType">Object type</param>
+        /// <param name="existingValue">Existing value</param>
+        /// <param name="serializer">JSON Serializer</param>
+        /// <returns>The object converted from the JSON string</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if(reader.TokenType != JsonToken.Null)
+            {
+                return Triangle.FromJson(JObject.Load(reader).ToString(Formatting.None));
+            }
+            return null;
+        }
+
+        /// <summary>
+        /// Check if the object can be converted
+        /// </summary>
+        /// <param name="objectType">Object type</param>
+        /// <returns>True if the object can be converted</returns>
+        public override bool CanConvert(Type objectType)
+        {
+            return false;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TriangleInterface.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TriangleInterface.cs
new file mode 100644
index 00000000000..1c85da68ec7
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/TriangleInterface.cs
@@ -0,0 +1,145 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// TriangleInterface
+    /// </summary>
+    [DataContract(Name = "TriangleInterface")]
+    public partial class TriangleInterface : IEquatable<TriangleInterface>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TriangleInterface" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected TriangleInterface()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="TriangleInterface" /> class.
+        /// </summary>
+        /// <param name="triangleType">triangleType (required).</param>
+        public TriangleInterface(string triangleType = default(string))
+        {
+            // to ensure "triangleType" is required (not null)
+            if (triangleType == null)
+            {
+                throw new ArgumentNullException("triangleType is a required property for TriangleInterface and cannot be null");
+            }
+            this.TriangleType = triangleType;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets TriangleType
+        /// </summary>
+        [DataMember(Name = "triangleType", IsRequired = true, EmitDefaultValue = true)]
+        public string TriangleType { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class TriangleInterface {\n");
+            sb.Append("  TriangleType: ").Append(TriangleType).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as TriangleInterface).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if TriangleInterface instances are equal
+        /// </summary>
+        /// <param name="input">Instance of TriangleInterface to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(TriangleInterface input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                if (this.TriangleType != null)
+                {
+                    hashCode = (hashCode * 59) + this.TriangleType.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/User.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/User.cs
new file mode 100644
index 00000000000..8744ceac5ba
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/User.cs
@@ -0,0 +1,274 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// User
+    /// </summary>
+    [DataContract(Name = "User")]
+    public partial class User : IEquatable<User>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="User" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="username">username.</param>
+        /// <param name="firstName">firstName.</param>
+        /// <param name="lastName">lastName.</param>
+        /// <param name="email">email.</param>
+        /// <param name="password">password.</param>
+        /// <param name="phone">phone.</param>
+        /// <param name="userStatus">User Status.</param>
+        /// <param name="objectWithNoDeclaredProps">test code generation for objects Value must be a map of strings to values. It cannot be the &#39;null&#39; value..</param>
+        /// <param name="objectWithNoDeclaredPropsNullable">test code generation for nullable objects. Value must be a map of strings to values or the &#39;null&#39; value..</param>
+        /// <param name="anyTypeProp">test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. See https://github.com/OAI/OpenAPI-Specification/issues/1389.</param>
+        /// <param name="anyTypePropNullable">test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. The &#39;nullable&#39; attribute does not change the allowed values..</param>
+        public User(long id = default(long), string username = default(string), string firstName = default(string), string lastName = default(string), string email = default(string), string password = default(string), string phone = default(string), int userStatus = default(int), Object objectWithNoDeclaredProps = default(Object), Object objectWithNoDeclaredPropsNullable = default(Object), Object anyTypeProp = default(Object), Object anyTypePropNullable = default(Object))
+        {
+            this.Id = id;
+            this.Username = username;
+            this.FirstName = firstName;
+            this.LastName = lastName;
+            this.Email = email;
+            this.Password = password;
+            this.Phone = phone;
+            this.UserStatus = userStatus;
+            this.ObjectWithNoDeclaredProps = objectWithNoDeclaredProps;
+            this.ObjectWithNoDeclaredPropsNullable = objectWithNoDeclaredPropsNullable;
+            this.AnyTypeProp = anyTypeProp;
+            this.AnyTypePropNullable = anyTypePropNullable;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Username
+        /// </summary>
+        [DataMember(Name = "username", EmitDefaultValue = false)]
+        public string Username { get; set; }
+
+        /// <summary>
+        /// Gets or Sets FirstName
+        /// </summary>
+        [DataMember(Name = "firstName", EmitDefaultValue = false)]
+        public string FirstName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets LastName
+        /// </summary>
+        [DataMember(Name = "lastName", EmitDefaultValue = false)]
+        public string LastName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Email
+        /// </summary>
+        [DataMember(Name = "email", EmitDefaultValue = false)]
+        public string Email { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Password
+        /// </summary>
+        [DataMember(Name = "password", EmitDefaultValue = false)]
+        public string Password { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Phone
+        /// </summary>
+        [DataMember(Name = "phone", EmitDefaultValue = false)]
+        public string Phone { get; set; }
+
+        /// <summary>
+        /// User Status
+        /// </summary>
+        /// <value>User Status</value>
+        [DataMember(Name = "userStatus", EmitDefaultValue = false)]
+        public int UserStatus { get; set; }
+
+        /// <summary>
+        /// test code generation for objects Value must be a map of strings to values. It cannot be the &#39;null&#39; value.
+        /// </summary>
+        /// <value>test code generation for objects Value must be a map of strings to values. It cannot be the &#39;null&#39; value.</value>
+        [DataMember(Name = "objectWithNoDeclaredProps", EmitDefaultValue = false)]
+        public Object ObjectWithNoDeclaredProps { get; set; }
+
+        /// <summary>
+        /// test code generation for nullable objects. Value must be a map of strings to values or the &#39;null&#39; value.
+        /// </summary>
+        /// <value>test code generation for nullable objects. Value must be a map of strings to values or the &#39;null&#39; value.</value>
+        [DataMember(Name = "objectWithNoDeclaredPropsNullable", EmitDefaultValue = true)]
+        public Object ObjectWithNoDeclaredPropsNullable { get; set; }
+
+        /// <summary>
+        /// test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. See https://github.com/OAI/OpenAPI-Specification/issues/1389
+        /// </summary>
+        /// <value>test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. See https://github.com/OAI/OpenAPI-Specification/issues/1389</value>
+        [DataMember(Name = "anyTypeProp", EmitDefaultValue = true)]
+        public Object AnyTypeProp { get; set; }
+
+        /// <summary>
+        /// test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. The &#39;nullable&#39; attribute does not change the allowed values.
+        /// </summary>
+        /// <value>test code generation for any type Here the &#39;type&#39; attribute is not specified, which means the value can be anything, including the null value, string, number, boolean, array or object. The &#39;nullable&#39; attribute does not change the allowed values.</value>
+        [DataMember(Name = "anyTypePropNullable", EmitDefaultValue = true)]
+        public Object AnyTypePropNullable { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class User {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Username: ").Append(Username).Append("\n");
+            sb.Append("  FirstName: ").Append(FirstName).Append("\n");
+            sb.Append("  LastName: ").Append(LastName).Append("\n");
+            sb.Append("  Email: ").Append(Email).Append("\n");
+            sb.Append("  Password: ").Append(Password).Append("\n");
+            sb.Append("  Phone: ").Append(Phone).Append("\n");
+            sb.Append("  UserStatus: ").Append(UserStatus).Append("\n");
+            sb.Append("  ObjectWithNoDeclaredProps: ").Append(ObjectWithNoDeclaredProps).Append("\n");
+            sb.Append("  ObjectWithNoDeclaredPropsNullable: ").Append(ObjectWithNoDeclaredPropsNullable).Append("\n");
+            sb.Append("  AnyTypeProp: ").Append(AnyTypeProp).Append("\n");
+            sb.Append("  AnyTypePropNullable: ").Append(AnyTypePropNullable).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as User).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if User instances are equal
+        /// </summary>
+        /// <param name="input">Instance of User to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(User input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.Id.GetHashCode();
+                if (this.Username != null)
+                {
+                    hashCode = (hashCode * 59) + this.Username.GetHashCode();
+                }
+                if (this.FirstName != null)
+                {
+                    hashCode = (hashCode * 59) + this.FirstName.GetHashCode();
+                }
+                if (this.LastName != null)
+                {
+                    hashCode = (hashCode * 59) + this.LastName.GetHashCode();
+                }
+                if (this.Email != null)
+                {
+                    hashCode = (hashCode * 59) + this.Email.GetHashCode();
+                }
+                if (this.Password != null)
+                {
+                    hashCode = (hashCode * 59) + this.Password.GetHashCode();
+                }
+                if (this.Phone != null)
+                {
+                    hashCode = (hashCode * 59) + this.Phone.GetHashCode();
+                }
+                hashCode = (hashCode * 59) + this.UserStatus.GetHashCode();
+                if (this.ObjectWithNoDeclaredProps != null)
+                {
+                    hashCode = (hashCode * 59) + this.ObjectWithNoDeclaredProps.GetHashCode();
+                }
+                if (this.ObjectWithNoDeclaredPropsNullable != null)
+                {
+                    hashCode = (hashCode * 59) + this.ObjectWithNoDeclaredPropsNullable.GetHashCode();
+                }
+                if (this.AnyTypeProp != null)
+                {
+                    hashCode = (hashCode * 59) + this.AnyTypeProp.GetHashCode();
+                }
+                if (this.AnyTypePropNullable != null)
+                {
+                    hashCode = (hashCode * 59) + this.AnyTypePropNullable.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Whale.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Whale.cs
new file mode 100644
index 00000000000..c4ae8981958
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Whale.cs
@@ -0,0 +1,165 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Whale
+    /// </summary>
+    [DataContract(Name = "whale")]
+    public partial class Whale : IEquatable<Whale>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Whale" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Whale()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Whale" /> class.
+        /// </summary>
+        /// <param name="hasBaleen">hasBaleen.</param>
+        /// <param name="hasTeeth">hasTeeth.</param>
+        /// <param name="className">className (required).</param>
+        public Whale(bool hasBaleen = default(bool), bool hasTeeth = default(bool), string className = default(string))
+        {
+            // to ensure "className" is required (not null)
+            if (className == null)
+            {
+                throw new ArgumentNullException("className is a required property for Whale and cannot be null");
+            }
+            this.ClassName = className;
+            this.HasBaleen = hasBaleen;
+            this.HasTeeth = hasTeeth;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets HasBaleen
+        /// </summary>
+        [DataMember(Name = "hasBaleen", EmitDefaultValue = true)]
+        public bool HasBaleen { get; set; }
+
+        /// <summary>
+        /// Gets or Sets HasTeeth
+        /// </summary>
+        [DataMember(Name = "hasTeeth", EmitDefaultValue = true)]
+        public bool HasTeeth { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ClassName
+        /// </summary>
+        [DataMember(Name = "className", IsRequired = true, EmitDefaultValue = true)]
+        public string ClassName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Whale {\n");
+            sb.Append("  HasBaleen: ").Append(HasBaleen).Append("\n");
+            sb.Append("  HasTeeth: ").Append(HasTeeth).Append("\n");
+            sb.Append("  ClassName: ").Append(ClassName).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Whale).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Whale instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Whale to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Whale input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.HasBaleen.GetHashCode();
+                hashCode = (hashCode * 59) + this.HasTeeth.GetHashCode();
+                if (this.ClassName != null)
+                {
+                    hashCode = (hashCode * 59) + this.ClassName.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Zebra.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Zebra.cs
new file mode 100644
index 00000000000..193c3be7973
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/Zebra.cs
@@ -0,0 +1,191 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Zebra
+    /// </summary>
+    [DataContract(Name = "zebra")]
+    public partial class Zebra : Dictionary<String, Object>, IEquatable<Zebra>, IValidatableObject
+    {
+        /// <summary>
+        /// Defines Type
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum TypeEnum
+        {
+            /// <summary>
+            /// Enum Plains for value: plains
+            /// </summary>
+            [EnumMember(Value = "plains")]
+            Plains = 1,
+
+            /// <summary>
+            /// Enum Mountain for value: mountain
+            /// </summary>
+            [EnumMember(Value = "mountain")]
+            Mountain = 2,
+
+            /// <summary>
+            /// Enum Grevys for value: grevys
+            /// </summary>
+            [EnumMember(Value = "grevys")]
+            Grevys = 3
+        }
+
+
+        /// <summary>
+        /// Gets or Sets Type
+        /// </summary>
+        [DataMember(Name = "type", EmitDefaultValue = false)]
+        public TypeEnum? Type { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Zebra" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Zebra()
+        {
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Zebra" /> class.
+        /// </summary>
+        /// <param name="type">type.</param>
+        /// <param name="className">className (required).</param>
+        public Zebra(TypeEnum? type = default(TypeEnum?), string className = default(string)) : base()
+        {
+            // to ensure "className" is required (not null)
+            if (className == null)
+            {
+                throw new ArgumentNullException("className is a required property for Zebra and cannot be null");
+            }
+            this.ClassName = className;
+            this.Type = type;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets ClassName
+        /// </summary>
+        [DataMember(Name = "className", IsRequired = true, EmitDefaultValue = true)]
+        public string ClassName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class Zebra {\n");
+            sb.Append("  ").Append(base.ToString().Replace("\n", "\n  ")).Append("\n");
+            sb.Append("  Type: ").Append(Type).Append("\n");
+            sb.Append("  ClassName: ").Append(ClassName).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as Zebra).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if Zebra instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Zebra to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Zebra input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = base.GetHashCode();
+                hashCode = (hashCode * 59) + this.Type.GetHashCode();
+                if (this.ClassName != null)
+                {
+                    hashCode = (hashCode * 59) + this.ClassName.GetHashCode();
+                }
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            return this.BaseValidate(validationContext);
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        protected IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> BaseValidate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ZeroBasedEnum.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ZeroBasedEnum.cs
new file mode 100644
index 00000000000..b4ff8d51adb
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ZeroBasedEnum.cs
@@ -0,0 +1,48 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// Defines ZeroBasedEnum
+    /// </summary>
+    [JsonConverter(typeof(StringEnumConverter))]
+    public enum ZeroBasedEnum
+    {
+        /// <summary>
+        /// Enum Unknown for value: unknown
+        /// </summary>
+        [EnumMember(Value = "unknown")]
+        Unknown,
+
+        /// <summary>
+        /// Enum NotUnknown for value: notUnknown
+        /// </summary>
+        [EnumMember(Value = "notUnknown")]
+        NotUnknown
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs
new file mode 100644
index 00000000000..239e8a16b64
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Model/ZeroBasedEnumClass.cs
@@ -0,0 +1,148 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+using OpenAPIClientUtils = Org.OpenAPITools.Client.ClientUtils;
+
+namespace Org.OpenAPITools.Model
+{
+    /// <summary>
+    /// ZeroBasedEnumClass
+    /// </summary>
+    [DataContract(Name = "ZeroBasedEnumClass")]
+    public partial class ZeroBasedEnumClass : IEquatable<ZeroBasedEnumClass>, IValidatableObject
+    {
+        /// <summary>
+        /// Defines ZeroBasedEnum
+        /// </summary>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum ZeroBasedEnumEnum
+        {
+            /// <summary>
+            /// Enum Unknown for value: unknown
+            /// </summary>
+            [EnumMember(Value = "unknown")]
+            Unknown,
+
+            /// <summary>
+            /// Enum NotUnknown for value: notUnknown
+            /// </summary>
+            [EnumMember(Value = "notUnknown")]
+            NotUnknown
+        }
+
+
+        /// <summary>
+        /// Gets or Sets ZeroBasedEnum
+        /// </summary>
+        [DataMember(Name = "ZeroBasedEnum", EmitDefaultValue = false)]
+        public ZeroBasedEnumEnum? ZeroBasedEnum { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZeroBasedEnumClass" /> class.
+        /// </summary>
+        /// <param name="zeroBasedEnum">zeroBasedEnum.</param>
+        public ZeroBasedEnumClass(ZeroBasedEnumEnum? zeroBasedEnum = default(ZeroBasedEnumEnum?))
+        {
+            this.ZeroBasedEnum = zeroBasedEnum;
+            this.AdditionalProperties = new Dictionary<string, object>();
+        }
+
+        /// <summary>
+        /// Gets or Sets additional properties
+        /// </summary>
+        [JsonExtensionData]
+        public IDictionary<string, object> AdditionalProperties { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.Append("class ZeroBasedEnumClass {\n");
+            sb.Append("  ZeroBasedEnum: ").Append(ZeroBasedEnum).Append("\n");
+            sb.Append("  AdditionalProperties: ").Append(AdditionalProperties).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input as ZeroBasedEnumClass).AreEqual;
+        }
+
+        /// <summary>
+        /// Returns true if ZeroBasedEnumClass instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ZeroBasedEnumClass to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ZeroBasedEnumClass input)
+        {
+            return OpenAPIClientUtils.compareLogic.Compare(this, input).AreEqual;
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = (hashCode * 59) + this.ZeroBasedEnum.GetHashCode();
+                if (this.AdditionalProperties != null)
+                {
+                    hashCode = (hashCode * 59) + this.AdditionalProperties.GetHashCode();
+                }
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}
diff --git a/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Org.OpenAPITools.csproj b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Org.OpenAPITools.csproj
new file mode 100644
index 00000000000..dc475b50c1d
--- /dev/null
+++ b/samples/client/petstore/csharp/OpenAPIClient-net8.0/src/Org.OpenAPITools/Org.OpenAPITools.csproj
@@ -0,0 +1,37 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <GenerateAssemblyInfo>false</GenerateAssemblyInfo><!-- setting GenerateAssemblyInfo to false causes this bug https://github.com/dotnet/project-system/issues/3934 -->
+    <TargetFramework>net8.0</TargetFramework>
+    <AssemblyName>Org.OpenAPITools</AssemblyName>
+    <PackageId>Org.OpenAPITools</PackageId>
+    <OutputType>Library</OutputType>
+    <Authors>OpenAPI</Authors>
+    <Company>OpenAPI</Company>
+    <AssemblyTitle>OpenAPI Library</AssemblyTitle>
+    <Description>A library generated from a OpenAPI doc</Description>
+    <Copyright>No Copyright</Copyright>
+    <RootNamespace>Org.OpenAPITools</RootNamespace>
+    <Version>1.0.0</Version>
+    <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\Org.OpenAPITools.xml</DocumentationFile>
+    <RepositoryUrl>https://github.com/GIT_USER_ID/GIT_REPO_ID.git</RepositoryUrl>
+    <RepositoryType>git</RepositoryType>
+    <PackageReleaseNotes>Minor update</PackageReleaseNotes>
+    <Nullable>annotations</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="CompareNETObjects" Version="4.82.0" />
+    <PackageReference Include="JsonSubTypes" Version="2.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="RestSharp" Version="110.2.0" />
+    <PackageReference Include="Polly" Version="8.1.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Remove="System.Web" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="System.Web" />
+  </ItemGroup>
+</Project>