diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/2.0/model.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/2.0/model.mustache
index 51b6db87378..bf30b9f5795 100644
--- a/modules/openapi-generator/src/main/resources/aspnetcore/2.0/model.mustache
+++ b/modules/openapi-generator/src/main/resources/aspnetcore/2.0/model.mustache
@@ -72,7 +72,7 @@ namespace {{packageName}}.Models
         /// <returns>JSON string presentation of the object</returns>
         public {{#parent}}{{^isMap}}{{^isArray}}new {{/isArray}}{{/isMap}}{{/parent}}string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache
index 1ea129ab6e1..491b39e54a1 100644
--- a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache
+++ b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache
@@ -75,7 +75,7 @@ namespace {{modelPackage}}
         /// <returns>JSON string presentation of the object</returns>
         public {{#parent}}{{^isMap}}{{^isArray}}new {{/isArray}}{{/isMap}}{{/parent}}string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/model.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/model.mustache
index 1ea129ab6e1..491b39e54a1 100644
--- a/modules/openapi-generator/src/main/resources/aspnetcore/3.0/model.mustache
+++ b/modules/openapi-generator/src/main/resources/aspnetcore/3.0/model.mustache
@@ -75,7 +75,7 @@ namespace {{modelPackage}}
         /// <returns>JSON string presentation of the object</returns>
         public {{#parent}}{{^isMap}}{{^isArray}}new {{/isArray}}{{/isMap}}{{/parent}}string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/modules/openapi-generator/src/main/resources/csharp-dotnet2/model.mustache b/modules/openapi-generator/src/main/resources/csharp-dotnet2/model.mustache
index 92cdefea3a6..7c3311e1fd6 100644
--- a/modules/openapi-generator/src/main/resources/csharp-dotnet2/model.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp-dotnet2/model.mustache
@@ -44,7 +44,7 @@ namespace {{modelPackage}} {
     /// </summary>
     /// <returns>JSON string presentation of the object</returns>
     public {{#parent}} new {{/parent}}string ToJson() {
-      return JsonConvert.SerializeObject(this, Formatting.Indented);
+      return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
     }
 
 }
diff --git a/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache b/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache
index b256e9ec73c..6dc58205f29 100644
--- a/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache
@@ -175,7 +175,7 @@
         /// <returns>JSON string presentation of the object</returns>
         public {{#parent}}{{^isArray}}{{^isMap}}override {{/isMap}}{{/isArray}}{{/parent}}{{^parent}}virtual {{/parent}}string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/modules/openapi-generator/src/main/resources/csharp/modelGeneric.mustache b/modules/openapi-generator/src/main/resources/csharp/modelGeneric.mustache
index a7785dd8344..a5a4458f4c7 100644
--- a/modules/openapi-generator/src/main/resources/csharp/modelGeneric.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp/modelGeneric.mustache
@@ -139,7 +139,7 @@ this.{{name}} = {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}};
         /// <returns>JSON string presentation of the object</returns>
         public {{#parent}}{{^isArray}}{{^isMap}}override {{/isMap}}{{/isArray}}{{/parent}}{{^parent}}virtual {{/parent}}string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
index c475de9d515..5f212ec734f 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
@@ -138,7 +138,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Animal.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Animal.cs
index 4c509d2e4aa..95c79122ad7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Animal.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Animal.cs
@@ -97,7 +97,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ApiResponse.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ApiResponse.cs
index 524cc5e7215..c9a0a78efa7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ApiResponse.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ApiResponse.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Apple.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Apple.cs
index 4c2d6ebc6ad..b414d3021a6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Apple.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Apple.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AppleReq.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AppleReq.cs
index cd888df5469..7501463d801 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AppleReq.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/AppleReq.cs
@@ -81,7 +81,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
index 9c1b8a3d2f6..bf2c8663ff6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
index 9a227ca87b2..09a9bbb8850 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayTest.cs
index e84239e7f5f..4406ffb33ea 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ArrayTest.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Banana.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Banana.cs
index 099a6a086b1..a7513bb453a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Banana.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Banana.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BananaReq.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BananaReq.cs
index 3a97bb96739..6e7c0c7fb3b 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BananaReq.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BananaReq.cs
@@ -80,7 +80,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BasquePig.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BasquePig.cs
index 2e81ab48a88..5c6f9a0e83d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BasquePig.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/BasquePig.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Capitalization.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Capitalization.cs
index ab505acd1b8..a4ab27bd898 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Capitalization.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Capitalization.cs
@@ -120,7 +120,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Cat.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Cat.cs
index 8b1954f2b00..1c6fa0f4220 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Cat.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Cat.cs
@@ -87,7 +87,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/CatAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/CatAllOf.cs
index e29f222cd2e..ed6a94eedeb 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/CatAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/CatAllOf.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Category.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Category.cs
index c0342c40473..581a23ef2a5 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Category.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Category.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCat.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCat.cs
index 5a17b62feb1..8c2d77ca45d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCat.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCat.cs
@@ -107,7 +107,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCatAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
index 92faece488a..a8a0e05b660 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
@@ -96,7 +96,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ClassModel.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ClassModel.cs
index 373b5f2e2d5..bb2121cd517 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ClassModel.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ClassModel.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
index 3c68f3871ec..78f3c6c03e3 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DanishPig.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DanishPig.cs
index 61fb5c4504e..dd2de1d038a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DanishPig.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DanishPig.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Dog.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Dog.cs
index 1283f5698bf..1ff9ab1624d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Dog.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Dog.cs
@@ -87,7 +87,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DogAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DogAllOf.cs
index 328bca57a4c..cd2f1a0eeec 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DogAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/DogAllOf.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Drawing.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Drawing.cs
index 654dcd023f5..28e2ea55693 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Drawing.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Drawing.cs
@@ -94,7 +94,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumArrays.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumArrays.cs
index 882f2e117cf..8befbb0b504 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumArrays.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumArrays.cs
@@ -122,7 +122,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumTest.cs
index 2a85382a1b1..233087cc170 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EnumTest.cs
@@ -226,7 +226,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EquilateralTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
index b68df9d89c7..ed443f68cf7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/File.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/File.cs
index fa03d563a2d..af4a38ae023 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/File.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/File.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
index d67a39bbc96..cc6b3e34c5d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Foo.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Foo.cs
index eb47e5270c7..83637468119 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Foo.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Foo.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FormatTest.cs
index 3ff064d7e86..9e7466bb502 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FormatTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/FormatTest.cs
@@ -222,7 +222,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/GrandparentAnimal.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
index 473abe1c22c..9352d27022f 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
@@ -87,7 +87,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
index f9acea4a20b..3a2c3d26a92 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
@@ -98,7 +98,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HealthCheckResult.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HealthCheckResult.cs
index 3496a024e1d..1cd90560cbe 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HealthCheckResult.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/HealthCheckResult.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject.cs
index a903afca61e..651f325b645 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject.cs
@@ -85,7 +85,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject1.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject1.cs
index 456691c87e1..9e96b966e9e 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject1.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject1.cs
@@ -85,7 +85,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject2.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject2.cs
index a031733c6ad..0a8a33d11a0 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject2.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject2.cs
@@ -131,7 +131,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject3.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject3.cs
index 4a77c8587ab..7fce7c55597 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject3.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject3.cs
@@ -216,7 +216,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject4.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject4.cs
index 4c052bad6fc..72cece10617 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject4.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject4.cs
@@ -95,7 +95,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject5.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject5.cs
index bf92a3c8cdc..f682f14ef41 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject5.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineObject5.cs
@@ -94,7 +94,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineResponseDefault.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
index 7edccc88164..5f4b24acafa 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
index c09385ac331..46963173f71 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/List.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/List.cs
index aa1c9cc36ee..ecf4e8ff00e 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/List.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/List.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MapTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MapTest.cs
index fa7f9e87dd1..0f9e49a98b3 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MapTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MapTest.cs
@@ -121,7 +121,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
index c497eaa623a..dc3d45a080a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Model200Response.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Model200Response.cs
index a5488cedb14..b1e76d25081 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Model200Response.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Model200Response.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ModelClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ModelClient.cs
index b7ccfdb5e9d..16f1dc95bab 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ModelClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ModelClient.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Name.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Name.cs
index d110bce48fd..a6a01dd4ed3 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Name.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Name.cs
@@ -123,7 +123,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NullableClass.cs
index 0a932189c89..4ceaab61bc6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NullableClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NullableClass.cs
@@ -167,7 +167,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NumberOnly.cs
index 34146208060..e9b006094cf 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/NumberOnly.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Order.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Order.cs
index 3f6707228da..975f3b711dd 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Order.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Order.cs
@@ -146,7 +146,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/OuterComposite.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/OuterComposite.cs
index 2a4c9b36b7f..61c4bca3e3c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/OuterComposite.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/OuterComposite.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ParentPet.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ParentPet.cs
index 5bc6e4a668c..a205b59b6d0 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ParentPet.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ParentPet.cs
@@ -78,7 +78,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Pet.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Pet.cs
index fc061ceec6b..4f7057df98d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Pet.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Pet.cs
@@ -156,7 +156,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
index b1bfb4d3574..e7727cf856c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
index 65828ea4a98..4ab8f7d5c6a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
@@ -90,7 +90,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Return.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Return.cs
index 01875f1b06e..75e7f1f2530 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Return.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Return.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ScaleneTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
index 2e32294b179..c539590907c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ShapeInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ShapeInterface.cs
index aa7467c6fc2..051100b4e6c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ShapeInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/ShapeInterface.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
index e401f71296c..5280a0c308a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SpecialModelName.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SpecialModelName.cs
index 5354cf5d143..f7199da4c03 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SpecialModelName.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/SpecialModelName.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Tag.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Tag.cs
index f83b0e47be1..aba43e338be 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Tag.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Tag.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/TriangleInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/TriangleInterface.cs
index 106d11c5130..4b7274465ce 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/TriangleInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/TriangleInterface.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/User.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/User.cs
index 5430b843ce6..ea24f093e14 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/User.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/User.cs
@@ -178,7 +178,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Whale.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Whale.cs
index 96267123d01..fdecfefd679 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Whale.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Whale.cs
@@ -101,7 +101,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Zebra.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Zebra.cs
index 1dd6a5d5b64..cd2f85fe1ac 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Zebra.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Model/Zebra.cs
@@ -118,7 +118,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
index c475de9d515..5f212ec734f 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
@@ -138,7 +138,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs
index 4c509d2e4aa..95c79122ad7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs
@@ -97,7 +97,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs
index 524cc5e7215..c9a0a78efa7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Apple.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Apple.cs
index 4c2d6ebc6ad..b414d3021a6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Apple.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Apple.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AppleReq.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AppleReq.cs
index cd888df5469..7501463d801 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AppleReq.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/AppleReq.cs
@@ -81,7 +81,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
index 9c1b8a3d2f6..bf2c8663ff6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
index 9a227ca87b2..09a9bbb8850 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs
index e84239e7f5f..4406ffb33ea 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Banana.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Banana.cs
index 099a6a086b1..a7513bb453a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Banana.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Banana.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BananaReq.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BananaReq.cs
index 3a97bb96739..6e7c0c7fb3b 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BananaReq.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BananaReq.cs
@@ -80,7 +80,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BasquePig.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BasquePig.cs
index 2e81ab48a88..5c6f9a0e83d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BasquePig.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/BasquePig.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs
index ab505acd1b8..a4ab27bd898 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs
@@ -120,7 +120,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs
index 8b1954f2b00..1c6fa0f4220 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs
@@ -87,7 +87,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs
index e29f222cd2e..ed6a94eedeb 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs
index c0342c40473..581a23ef2a5 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCat.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCat.cs
index 5a17b62feb1..8c2d77ca45d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCat.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCat.cs
@@ -107,7 +107,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCatAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
index 92faece488a..a8a0e05b660 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
@@ -96,7 +96,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs
index 373b5f2e2d5..bb2121cd517 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
index 3c68f3871ec..78f3c6c03e3 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DanishPig.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DanishPig.cs
index 61fb5c4504e..dd2de1d038a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DanishPig.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DanishPig.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs
index 1283f5698bf..1ff9ab1624d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs
@@ -87,7 +87,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs
index 328bca57a4c..cd2f1a0eeec 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Drawing.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Drawing.cs
index 654dcd023f5..28e2ea55693 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Drawing.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Drawing.cs
@@ -94,7 +94,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs
index 882f2e117cf..8befbb0b504 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs
@@ -122,7 +122,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs
index 2a85382a1b1..233087cc170 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs
@@ -226,7 +226,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EquilateralTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
index b68df9d89c7..ed443f68cf7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs
index fa03d563a2d..af4a38ae023 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
index d67a39bbc96..cc6b3e34c5d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs
index eb47e5270c7..83637468119 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs
index 3ff064d7e86..9e7466bb502 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs
@@ -222,7 +222,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/GrandparentAnimal.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
index 473abe1c22c..9352d27022f 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
@@ -87,7 +87,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
index f9acea4a20b..3a2c3d26a92 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
@@ -98,7 +98,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs
index 3496a024e1d..1cd90560cbe 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs
index a903afca61e..651f325b645 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs
@@ -85,7 +85,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs
index 456691c87e1..9e96b966e9e 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs
@@ -85,7 +85,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs
index a031733c6ad..0a8a33d11a0 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs
@@ -131,7 +131,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs
index 4a77c8587ab..7fce7c55597 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs
@@ -216,7 +216,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs
index 4c052bad6fc..72cece10617 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs
@@ -95,7 +95,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs
index bf92a3c8cdc..f682f14ef41 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs
@@ -94,7 +94,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
index 7edccc88164..5f4b24acafa 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
index c09385ac331..46963173f71 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs
index aa1c9cc36ee..ecf4e8ff00e 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs
index fa7f9e87dd1..0f9e49a98b3 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs
@@ -121,7 +121,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
index c497eaa623a..dc3d45a080a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs
index a5488cedb14..b1e76d25081 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs
index b7ccfdb5e9d..16f1dc95bab 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs
index d110bce48fd..a6a01dd4ed3 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs
@@ -123,7 +123,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs
index 0a932189c89..4ceaab61bc6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs
@@ -167,7 +167,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs
index 34146208060..e9b006094cf 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs
index 3f6707228da..975f3b711dd 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs
@@ -146,7 +146,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs
index 2a4c9b36b7f..61c4bca3e3c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs
@@ -92,7 +92,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ParentPet.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ParentPet.cs
index 5bc6e4a668c..a205b59b6d0 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ParentPet.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ParentPet.cs
@@ -78,7 +78,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs
index fc061ceec6b..4f7057df98d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs
@@ -156,7 +156,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
index b1bfb4d3574..e7727cf856c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
index 65828ea4a98..4ab8f7d5c6a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
@@ -90,7 +90,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs
index 01875f1b06e..75e7f1f2530 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ScaleneTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
index 2e32294b179..c539590907c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ShapeInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ShapeInterface.cs
index aa7467c6fc2..051100b4e6c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ShapeInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/ShapeInterface.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
index e401f71296c..5280a0c308a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
@@ -93,7 +93,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs
index 5354cf5d143..f7199da4c03 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs
@@ -74,7 +74,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs
index f83b0e47be1..aba43e338be 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/TriangleInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/TriangleInterface.cs
index 106d11c5130..4b7274465ce 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/TriangleInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/TriangleInterface.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs
index 5430b843ce6..ea24f093e14 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs
@@ -178,7 +178,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Whale.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Whale.cs
index 96267123d01..fdecfefd679 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Whale.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Whale.cs
@@ -101,7 +101,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Zebra.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Zebra.cs
index 1dd6a5d5b64..cd2f85fe1ac 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Zebra.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Model/Zebra.cs
@@ -118,7 +118,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
index cdd23bf6e36..c7e25b76079 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
@@ -130,7 +130,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Animal.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Animal.cs
index 8a5ff50efa8..809df84aa23 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Animal.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Animal.cs
@@ -86,7 +86,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ApiResponse.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ApiResponse.cs
index 3e8ced3d162..132d983f7a6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ApiResponse.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ApiResponse.cs
@@ -84,7 +84,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Apple.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Apple.cs
index bc2592af17f..379da70ad1f 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Apple.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Apple.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AppleReq.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AppleReq.cs
index cd888df5469..7501463d801 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AppleReq.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/AppleReq.cs
@@ -81,7 +81,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
index 054b5e65d2c..282702b5766 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
index a3aa9bfede7..4f428644200 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayTest.cs
index f27175dba0c..2c99a5d1304 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ArrayTest.cs
@@ -84,7 +84,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Banana.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Banana.cs
index f1e31a83cf1..a196e7b78c0 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Banana.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Banana.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BananaReq.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BananaReq.cs
index 3a97bb96739..6e7c0c7fb3b 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BananaReq.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BananaReq.cs
@@ -80,7 +80,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BasquePig.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BasquePig.cs
index a8a818483d8..ef8076cda4e 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BasquePig.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/BasquePig.cs
@@ -72,7 +72,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Capitalization.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Capitalization.cs
index 5bd7ac95a9c..96582b052ed 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Capitalization.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Capitalization.cs
@@ -112,7 +112,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Cat.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Cat.cs
index 88be4b0b0ad..e06a1195ef2 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Cat.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Cat.cs
@@ -76,7 +76,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/CatAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/CatAllOf.cs
index a8e63cd1a08..a88daf85ea4 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/CatAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/CatAllOf.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Category.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Category.cs
index 9df760ca427..4ce3332bb69 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Category.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Category.cs
@@ -81,7 +81,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCat.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCat.cs
index f005d5226d5..8070a78eddb 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCat.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCat.cs
@@ -96,7 +96,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCatAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
index ca6eeafaafd..4c6970f2e86 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ChildCatAllOf.cs
@@ -88,7 +88,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ClassModel.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ClassModel.cs
index 7b5731e77bf..e2ebe063ed7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ClassModel.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ClassModel.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
index fc09ea0113e..64217511870 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ComplexQuadrilateral.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DanishPig.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DanishPig.cs
index 9aa6153fd1f..1c53adbe337 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DanishPig.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DanishPig.cs
@@ -72,7 +72,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Dog.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Dog.cs
index 8449d880253..ec5e3c5f9f2 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Dog.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Dog.cs
@@ -76,7 +76,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DogAllOf.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DogAllOf.cs
index 0f5c47fe3b1..c799c37d830 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DogAllOf.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/DogAllOf.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Drawing.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Drawing.cs
index 654dcd023f5..28e2ea55693 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Drawing.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Drawing.cs
@@ -94,7 +94,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumArrays.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumArrays.cs
index a9ebddd666a..973bcd57d84 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumArrays.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumArrays.cs
@@ -114,7 +114,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumTest.cs
index 8ab3beb78f2..3909f157561 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EnumTest.cs
@@ -215,7 +215,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EquilateralTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
index 2c98f7cd6a3..e16ced021f3 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/EquilateralTriangle.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/File.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/File.cs
index cda89921c4f..9e0aa328ffc 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/File.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/File.cs
@@ -67,7 +67,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
index 70eae3fbee8..884d5e1d5ac 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Foo.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Foo.cs
index 7eb7041549b..470d4f4d509 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Foo.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Foo.cs
@@ -67,7 +67,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FormatTest.cs
index e60cf79c2c5..dbc146413be 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FormatTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/FormatTest.cs
@@ -211,7 +211,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/GrandparentAnimal.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
index 5122e62ddd8..a5b3dc0cfe7 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/GrandparentAnimal.cs
@@ -76,7 +76,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
index 1a7ca766e79..dd453ef37f6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
@@ -90,7 +90,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HealthCheckResult.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HealthCheckResult.cs
index 1745e39536a..5fb84d12f19 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HealthCheckResult.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/HealthCheckResult.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject.cs
index 410d650295a..c7a72be0c93 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject.cs
@@ -77,7 +77,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject1.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject1.cs
index 97fb9cc399d..e887fa228f4 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject1.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject1.cs
@@ -77,7 +77,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject2.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject2.cs
index 0e4ee38cd48..f0cf3a5071d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject2.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject2.cs
@@ -123,7 +123,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject3.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject3.cs
index 13aa3f2b182..8e94dc81146 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject3.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject3.cs
@@ -205,7 +205,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject4.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject4.cs
index 8e1986d8b78..eef39beea9b 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject4.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject4.cs
@@ -84,7 +84,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject5.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject5.cs
index db1e57f0d6f..d88814fa4b6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject5.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineObject5.cs
@@ -83,7 +83,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineResponseDefault.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
index 2930ff01cdc..b20f8730895 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
index c09385ac331..46963173f71 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/List.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/List.cs
index aa0b4f8e315..006d9f420c5 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/List.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/List.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MapTest.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MapTest.cs
index 844312246fd..1f59479c64c 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MapTest.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MapTest.cs
@@ -113,7 +113,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
index 9734a86cad9..0c78b44ee17 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
@@ -84,7 +84,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Model200Response.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Model200Response.cs
index 64ec561aada..1a3c7f830d2 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Model200Response.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Model200Response.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ModelClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ModelClient.cs
index bdf8d1ce1c2..09257478b56 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ModelClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ModelClient.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Name.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Name.cs
index 87642a1ba7b..a2000b1598b 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Name.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Name.cs
@@ -112,7 +112,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NullableClass.cs
index 0a932189c89..4ceaab61bc6 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NullableClass.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NullableClass.cs
@@ -167,7 +167,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NumberOnly.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NumberOnly.cs
index 7fbc7f5eecd..9f2f2ea03d0 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NumberOnly.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/NumberOnly.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Order.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Order.cs
index 2e95be9b2f6..12a1f7706e4 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Order.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Order.cs
@@ -138,7 +138,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/OuterComposite.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/OuterComposite.cs
index 6012de21653..5fc1357b116 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/OuterComposite.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/OuterComposite.cs
@@ -84,7 +84,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ParentPet.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ParentPet.cs
index 9b854fbb135..26e9275891d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ParentPet.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ParentPet.cs
@@ -67,7 +67,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Pet.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Pet.cs
index 260e8b40c13..e57ddf37711 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Pet.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Pet.cs
@@ -145,7 +145,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
index caefb25a238..e9657108be8 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/QuadrilateralInterface.cs
@@ -72,7 +72,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
index af290bd3a34..17a7c072a84 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Return.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Return.cs
index 0f6d436ea1d..1f6ae8f2e00 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Return.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Return.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ScaleneTriangle.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
index a13d398cfeb..46b9eaf7afc 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ScaleneTriangle.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ShapeInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ShapeInterface.cs
index 35a39babad4..187e9d72d6a 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ShapeInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/ShapeInterface.cs
@@ -72,7 +72,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
index ec65c7dd0da..f16798ec1d1 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SimpleQuadrilateral.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SpecialModelName.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SpecialModelName.cs
index 7a17077140c..c467ab0c57d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SpecialModelName.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/SpecialModelName.cs
@@ -66,7 +66,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Tag.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Tag.cs
index 42781e323a9..22a7e9560db 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Tag.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Tag.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/TriangleInterface.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/TriangleInterface.cs
index fbf8992103b..4eb30bbeb3d 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/TriangleInterface.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/TriangleInterface.cs
@@ -72,7 +72,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/User.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/User.cs
index 231d1c7c089..401543c90be 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/User.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/User.cs
@@ -170,7 +170,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Whale.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Whale.cs
index 2bdbf184107..61941b59713 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Whale.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Whale.cs
@@ -90,7 +90,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Zebra.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Zebra.cs
index 1dd6a5d5b64..cd2f85fe1ac 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Zebra.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Model/Zebra.cs
@@ -118,7 +118,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
index fa513775177..b4262e74963 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs
@@ -73,7 +73,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs
index fe04c33922f..1384d3dfdbe 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Animal.cs
@@ -99,7 +99,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs
index 8f5a5a0e5a9..e5191f80841 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
index 0342fb2ce66..caeda5bfd5f 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
index 1b87d630d20..1782a3d62bf 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs
index 10886bb6af6..a35f9d88d0e 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs
index 058ce89df0d..264f3ba8bf1 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Capitalization.cs
@@ -110,7 +110,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs
index e4cfa3fbef4..136595ae92d 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs
@@ -70,7 +70,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs
index 3d452f64b38..9760856716e 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs
index 2901d8bf67c..e7682c2e9f1 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs
@@ -87,7 +87,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs
index 4a7d5372a1a..aef5c01bf55 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ClassModel.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs
index b925fb99c32..6a3a3c1cfb8 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Dog.cs
@@ -70,7 +70,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public override string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs
index 24d4b43de85..d42fdc5f8a4 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/DogAllOf.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs
index 6887c901d11..e526a6cec27 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumArrays.cs
@@ -114,7 +114,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs
index 31a58444055..34d368cf09f 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/EnumTest.cs
@@ -231,7 +231,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs
index 3cf268524f9..1aa11368e39 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/File.cs
@@ -65,7 +65,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
index 73a8b61aa75..4ea2db66423 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FileSchemaTestClass.cs
@@ -73,7 +73,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs
index 5f3b3bcd9d5..7d70ebd1b55 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Foo.cs
@@ -72,7 +72,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs
index db1b0610096..e97e6c8e4ce 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs
@@ -243,7 +243,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
index 10b9939f5ad..cbd2231075c 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
@@ -70,7 +70,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs
index dffd3ccfa61..b9742d7c8be 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/HealthCheckResult.cs
@@ -65,7 +65,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs
index 7a3a6114012..f3c713e9ee6 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs
index f08aeb4eb37..07ddd25ac03 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject1.cs
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs
index 5e512e7d3b9..9dde0588267 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject2.cs
@@ -131,7 +131,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs
index 65d38e74817..8d268cbdd13 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject3.cs
@@ -237,7 +237,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs
index 8d3147b9ff1..21f028e7550 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject4.cs
@@ -98,7 +98,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs
index ef1951597cc..d41ded64360 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineObject5.cs
@@ -89,7 +89,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
index a553a49ec79..6bb2794475f 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/InlineResponseDefault.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs
index 6b3ace11cf4..69d79410de8 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/List.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs
index 71368b4b44d..bd222512772 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs
@@ -112,7 +112,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
index 627a4d358b7..94946e6c723 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs
index 58853af412d..3c2494cc230 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs
@@ -73,7 +73,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs
index 2d93513c768..18840355672 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ModelClient.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs
index c22d454e1ea..7234d2140b9 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs
@@ -101,7 +101,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs
index c7aefda5756..182de004719 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NullableClass.cs
@@ -175,7 +175,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs
index 62f401d8785..3156b15b0d3 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs
index c46c951fd30..8184f05bbbc 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs
@@ -145,7 +145,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs
index eef811e7299..6777c3669bf 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs
@@ -82,7 +82,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs
index 681dccedc28..b37ec697acd 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs
@@ -160,7 +160,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
index bb1c7edde08..468732ca6dd 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ReadOnlyFirst.cs
@@ -71,7 +71,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs
index c12d15c0a65..65b140598cd 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs
index 0cd2939c9e1..0f9c4ff2db4 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs
@@ -64,7 +64,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs
index 4ed40c915d2..611b3f08ed8 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs
@@ -73,7 +73,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>
diff --git a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs
index d59b7b04132..e1c2f347899 100644
--- a/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs
+++ b/samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs
@@ -128,7 +128,7 @@ namespace Org.OpenAPITools.Model
         /// <returns>JSON string presentation of the object</returns>
         public virtual string ToJson()
         {
-            return JsonConvert.SerializeObject(this, Formatting.Indented);
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
         }
 
         /// <summary>