Fix logic of getNullableType of csharp server and client. (#3537)

* Fix default nullable

* Fix tests

* Update samples

* Fix template default value

* Update samples

* Also fix for interface

* update samples

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractCSharpCodegen.java

@@ -160,6 +160,7 @@ public abstract class AbstractCSharpCodegen extends DefaultCodegen implements Co
                         "Int64",
                         "Float",
                         "Guid?",
+                        "Guid",
                         "System.IO.Stream", // not really a primitive, we include it to avoid model import
                         "Object")
         );

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AspNetCoreServerCodegen.java

@@ -22,6 +22,7 @@ import io.swagger.v3.oas.models.OpenAPI;
 import io.swagger.v3.oas.models.media.Schema;
 import io.swagger.v3.parser.util.SchemaTypeUtil;
 import org.openapitools.codegen.*;
+import org.openapitools.codegen.utils.ModelUtils;
 import org.openapitools.codegen.utils.URLPathUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -353,7 +354,7 @@ public class AspNetCoreServerCodegen extends AbstractCSharpCodegen {
             supportingFiles.add(new SupportingFile("Filters" + File.separator + "GeneratePathParamsValidationFilter.mustache",
                     packageFolder + File.separator + "Filters", "GeneratePathParamsValidationFilter.cs"));
         }
- 
+
         supportingFiles.add(new SupportingFile("Authentication" + File.separator + "ApiAuthentication.mustache",packageFolder + File.separator + "Authentication", "ApiAuthentication.cs"));
     }
 
@@ -407,12 +408,12 @@ public class AspNetCoreServerCodegen extends AbstractCSharpCodegen {
 
     @Override
     public String getNullableType(Schema p, String type) {
-        boolean isNullableExpected = p.getNullable() == null || (p.getNullable() != null && p.getNullable());
-
-        if (isNullableExpected && languageSpecificPrimitives.contains(type + "?")) {
-            return type + "?";
-        } else if (languageSpecificPrimitives.contains(type)) {
-            return type;
+        if (languageSpecificPrimitives.contains(type)) {
+            if (isSupportNullable() && ModelUtils.isNullable(p) && nullableType.contains(type)) {
+                return type + "?";
+            } else {
+                return type;
+            }
         } else {
             return null;
         }

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java

@@ -879,15 +879,15 @@ public class CSharpClientCodegen extends AbstractCSharpCodegen {
             return null;
         }
     }
-    
+
     @Override
     public String getNullableType(Schema p, String type) {
-        boolean isNullableExpected = p.getNullable() == null || (p.getNullable() != null && p.getNullable());
-
-        if (isNullableExpected && languageSpecificPrimitives.contains(type + "?")) {
-            return type + "?";
-        } else if (languageSpecificPrimitives.contains(type)) {
-            return type;
+        if (languageSpecificPrimitives.contains(type)) {
+            if (isSupportNullable() && ModelUtils.isNullable(p) && nullableType.contains(type)) {
+                return type + "?";
+            } else {
+                return type;
+            }
         } else {
             return null;
         }

modules/openapi-generator/src/main/resources/csharp/api.mustache

@@ -32,7 +32,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>{{#returnType}}{{returnType}}{{/returnType}}</returns>
-        {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}} {{operationId}} ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
+        {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}} {{operationId}} ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
 
         /// <summary>
         /// {{summary}}
@@ -43,7 +43,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>ApiResponse of {{#returnType}}{{returnType}}{{/returnType}}{{^returnType}}Object(void){{/returnType}}</returns>
-        ApiResponse<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}}> {{operationId}}WithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
+        ApiResponse<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}}> {{operationId}}WithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
         {{/operation}}
         #endregion Synchronous Operations
         {{#supportsAsync}}
@@ -58,7 +58,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>Task of {{#returnType}}{{returnType}}{{/returnType}}{{^returnType}}void{{/returnType}}</returns>
-        {{#returnType}}System.Threading.Tasks.Task<{{{returnType}}}>{{/returnType}}{{^returnType}}System.Threading.Tasks.Task{{/returnType}} {{operationId}}Async ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
+        {{#returnType}}System.Threading.Tasks.Task<{{{returnType}}}>{{/returnType}}{{^returnType}}System.Threading.Tasks.Task{{/returnType}} {{operationId}}Async ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
 
         /// <summary>
         /// {{summary}}
@@ -69,7 +69,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>Task of ApiResponse{{#returnType}} ({{returnType}}){{/returnType}}</returns>
-        System.Threading.Tasks.Task<ApiResponse<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}}>> {{operationId}}AsyncWithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
+        System.Threading.Tasks.Task<ApiResponse<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}}>> {{operationId}}AsyncWithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
         {{/operation}}
         #endregion Asynchronous Operations
         {{/supportsAsync}}
@@ -190,7 +190,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>{{#returnType}}{{returnType}}{{/returnType}}</returns>
-        public {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}} {{operationId}} ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
+        public {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}} {{operationId}} ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
         {
              {{#returnType}}ApiResponse<{{{returnType}}}> localVarResponse = {{operationId}}WithHttpInfo({{#allParams}}{{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
              return localVarResponse.Data;{{/returnType}}{{^returnType}}{{operationId}}WithHttpInfo({{#allParams}}{{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}});{{/returnType}}
@@ -202,7 +202,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>ApiResponse of {{#returnType}}{{returnType}}{{/returnType}}{{^returnType}}Object(void){{/returnType}}</returns>
-        public ApiResponse<{{#returnType}} {{{returnType}}} {{/returnType}}{{^returnType}}Object{{/returnType}}> {{operationId}}WithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
+        public ApiResponse<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}}> {{operationId}}WithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
         {
             {{#allParams}}
             {{#required}}
@@ -325,7 +325,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>Task of {{#returnType}}{{returnType}}{{/returnType}}{{^returnType}}void{{/returnType}}</returns>
-        {{#returnType}}public async System.Threading.Tasks.Task<{{{returnType}}}>{{/returnType}}{{^returnType}}public async System.Threading.Tasks.Task{{/returnType}} {{operationId}}Async ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
+        {{#returnType}}public async System.Threading.Tasks.Task<{{{returnType}}}>{{/returnType}}{{^returnType}}public async System.Threading.Tasks.Task{{/returnType}} {{operationId}}Async ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
         {
              {{#returnType}}ApiResponse<{{{returnType}}}> localVarResponse = await {{operationId}}AsyncWithHttpInfo({{#allParams}}{{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
              return localVarResponse.Data;{{/returnType}}{{^returnType}}await {{operationId}}AsyncWithHttpInfo({{#allParams}}{{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}});{{/returnType}}
@@ -338,7 +338,7 @@ namespace {{packageName}}.{{apiPackage}}
         /// <exception cref="{{packageName}}.Client.ApiException">Thrown when fails to make API call</exception>
         {{#allParams}}/// <param name="{{paramName}}">{{description}}{{^required}} (optional{{#defaultValue}}, default to {{.}}{{/defaultValue}}){{/required}}</param>
         {{/allParams}}/// <returns>Task of ApiResponse{{#returnType}} ({{returnType}}){{/returnType}}</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}}>> {{operationId}}AsyncWithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = null{{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
+        public async System.Threading.Tasks.Task<ApiResponse<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Object{{/returnType}}>> {{operationId}}AsyncWithHttpInfo ({{#allParams}}{{{dataType}}} {{paramName}}{{^required}}{{#optionalMethodArgument}} = default({{{dataType}}}){{/optionalMethodArgument}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}})
         {
             {{#allParams}}
             {{#required}}

modules/openapi-generator/src/test/java/org/openapitools/codegen/csharp/CSharpModelTest.java

@@ -141,10 +141,10 @@ public class CSharpModelTest {
 
         final CodegenProperty property1 = cm.vars.get(0);
         Assert.assertEquals(property1.baseName, "id");
-        Assert.assertEquals(property1.dataType, "long?");
+        Assert.assertEquals(property1.dataType, "long");
         Assert.assertEquals(property1.name, "Id");
         Assert.assertNull(property1.defaultValue);
-        Assert.assertEquals(property1.baseType, "long?");
+        Assert.assertEquals(property1.baseType, "long");
         Assert.assertTrue(property1.hasMore);
         Assert.assertTrue(property1.required);
         Assert.assertTrue(property1.isPrimitiveType);
@@ -161,10 +161,10 @@ public class CSharpModelTest {
 
         final CodegenProperty property3 = cm.vars.get(2);
         Assert.assertEquals(property3.baseName, "createdAt");
-        Assert.assertEquals(property3.dataType, "DateTime?");
+        Assert.assertEquals(property3.dataType, "DateTime");
         Assert.assertEquals(property3.name, "CreatedAt");
         Assert.assertNull(property3.defaultValue);
-        Assert.assertEquals(property3.baseType, "DateTime?");
+        Assert.assertEquals(property3.baseType, "DateTime");
         Assert.assertFalse(property3.hasMore);
         Assert.assertFalse(property3.required);
     }
@@ -209,7 +209,59 @@ public class CSharpModelTest {
         Assert.assertFalse(property2.required);
         Assert.assertTrue(property2.isPrimitiveType);
         Assert.assertTrue(property2.isContainer);
-        
+
+        final CodegenProperty property3 = cm.vars.get(2);
+        Assert.assertEquals(property3.baseName, "name");
+        Assert.assertEquals(property3.dataType, "string");
+        Assert.assertEquals(property3.name, "Name");
+        Assert.assertNull(property3.defaultValue);
+        Assert.assertEquals(property3.baseType, "string");
+        Assert.assertFalse(property3.hasMore);
+        Assert.assertFalse(property3.required);
+        Assert.assertTrue(property3.isPrimitiveType);
+    }
+
+    @Test(description = "convert a model with a nullable property")
+    public void nullablePropertyTest() {
+        final Schema model = new Schema()
+                .description("a sample model")
+                .addProperties("id",  new IntegerSchema().format(SchemaTypeUtil.INTEGER64_FORMAT).nullable(true))
+                .addProperties("urls", new ArraySchema()
+                        .items(new StringSchema()))
+                .addProperties("name", new StringSchema().nullable(true))
+                .addRequiredItem("id");
+        final DefaultCodegen codegen = new CSharpClientCodegen();
+        OpenAPI openAPI = TestUtils.createOpenAPIWithOneSchema("sample", model);
+        codegen.setOpenAPI(openAPI);
+        final CodegenModel cm = codegen.fromModel("sample", model);
+
+        Assert.assertEquals(cm.name, "sample");
+        Assert.assertEquals(cm.classname, "Sample");
+        Assert.assertEquals(cm.description, "a sample model");
+        Assert.assertEquals(cm.vars.size(), 3);
+
+        final CodegenProperty property1 = cm.vars.get(0);
+        Assert.assertEquals(property1.baseName, "id");
+        Assert.assertEquals(property1.dataType, "long?");
+        Assert.assertEquals(property1.name, "Id");
+        Assert.assertNull(property1.defaultValue);
+        Assert.assertEquals(property1.baseType, "long?");
+        Assert.assertTrue(property1.hasMore);
+        Assert.assertTrue(property1.required);
+        Assert.assertTrue(property1.isPrimitiveType);
+
+        final CodegenProperty property2 = cm.vars.get(1);
+        Assert.assertEquals(property2.baseName, "urls");
+        Assert.assertEquals(property2.dataType, "List<string>");
+        Assert.assertEquals(property2.name, "Urls");
+        Assert.assertNull(property2.defaultValue);
+        Assert.assertEquals(property2.baseType, "List");
+        Assert.assertTrue(property2.hasMore);
+        Assert.assertEquals(property2.containerType, "array");
+        Assert.assertFalse(property2.required);
+        Assert.assertTrue(property2.isPrimitiveType);
+        Assert.assertTrue(property2.isContainer);
+
         final CodegenProperty property3 = cm.vars.get(2);
         Assert.assertEquals(property3.baseName, "name");
         Assert.assertEquals(property3.dataType, "string");
@@ -241,10 +293,10 @@ public class CSharpModelTest {
 
         final CodegenProperty property1 = cm.vars.get(0);
         Assert.assertEquals(property1.baseName, "id");
-        Assert.assertEquals(property1.dataType, "long?");
+        Assert.assertEquals(property1.dataType, "long");
         Assert.assertEquals(property1.name, "Id");
         Assert.assertNull(property1.defaultValue);
-        Assert.assertEquals(property1.baseType, "long?");
+        Assert.assertEquals(property1.baseType, "long");
         Assert.assertTrue(property1.hasMore);
         Assert.assertTrue(property1.required);
         Assert.assertTrue(property1.isPrimitiveType);

samples/client/petstore/csharp-dotnet2/OpenAPIClientTest/Lib/OpenAPIClient/.openapi-generator/VERSION

@@ -1 +1 @@
-4.0.0-SNAPSHOT
+4.1.0-SNAPSHOT

samples/client/petstore/csharp-dotnet2/OpenAPIClientTest/Lib/OpenAPIClient/docs/UserApi.md

@@ -117,7 +117,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**List<User>**](List.md)| List of user object | 
+ **body** | [**List<User>**](User.md)| List of user object | 
 
 ### Return type
 
@@ -176,7 +176,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**List<User>**](List.md)| List of user object | 
+ **body** | [**List<User>**](User.md)| List of user object | 
 
 ### Return type
 

samples/client/petstore/csharp-netcore/OpenAPIClient/docs/FormatTest.md

@@ -14,7 +14,7 @@ Name | Type | Description | Notes
 **Binary** | **System.IO.Stream** |  | [optional] 
 **Date** | **DateTime** |  | 
 **DateTime** | **DateTime** |  | [optional] 
-**Uuid** | [**Guid**](Guid.md) |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
 **Password** | **string** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)

samples/client/petstore/csharp-netcore/OpenAPIClient/docs/MixedPropertiesAndAdditionalPropertiesClass.md

@@ -3,7 +3,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Uuid** | [**Guid**](Guid.md) |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
 **DateTime** | **DateTime** |  | [optional] 
 **Map** | [**Dictionary<string, Animal>**](Animal.md) |  | [optional] 
 

samples/client/petstore/csharp-netcore/OpenAPIClientCore/docs/FormatTest.md

@@ -14,7 +14,7 @@ Name | Type | Description | Notes
 **Binary** | **System.IO.Stream** |  | [optional] 
 **Date** | **DateTime** |  | 
 **DateTime** | **DateTime** |  | [optional] 
-**Uuid** | [**Guid**](Guid.md) |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
 **Password** | **string** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)

samples/client/petstore/csharp-netcore/OpenAPIClientCore/docs/MixedPropertiesAndAdditionalPropertiesClass.md

@@ -3,7 +3,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Uuid** | [**Guid**](Guid.md) |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
 **DateTime** | **DateTime** |  | [optional] 
 **Map** | [**Dictionary<string, Animal>**](Animal.md) |  | [optional] 
 

samples/client/petstore/csharp/OpenAPIClient/docs/AdditionalPropertiesClass.md

@@ -6,10 +6,10 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **MapString** | **Dictionary<string, string>** |  | [optional] 
-**MapNumber** | **Dictionary<string, decimal?>** |  | [optional] 
-**MapInteger** | **Dictionary<string, int?>** |  | [optional] 
-**MapBoolean** | **Dictionary<string, bool?>** |  | [optional] 
-**MapArrayInteger** | **Dictionary<string, List<int?>>** |  | [optional] 
+**MapNumber** | **Dictionary<string, decimal>** |  | [optional] 
+**MapInteger** | **Dictionary<string, int>** |  | [optional] 
+**MapBoolean** | **Dictionary<string, bool>** |  | [optional] 
+**MapArrayInteger** | **Dictionary<string, List<int>>** |  | [optional] 
 **MapArrayAnytype** | **Dictionary<string, List<Object>>** |  | [optional] 
 **MapMapString** | **Dictionary<string, Dictionary<string, string>>** |  | [optional] 
 **MapMapAnytype** | **Dictionary<string, Dictionary<string, Object>>** |  | [optional] 

samples/client/petstore/csharp/OpenAPIClient/docs/ApiResponse.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Code** | **int?** |  | [optional] 
+**Code** | **int** |  | [optional] 
 **Type** | **string** |  | [optional] 
 **Message** | **string** |  | [optional] 
 

samples/client/petstore/csharp/OpenAPIClient/docs/ArrayOfArrayOfNumberOnly.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**ArrayArrayNumber** | **List<List<decimal?>>** |  | [optional] 
+**ArrayArrayNumber** | **List<List<decimal>>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/ArrayOfNumberOnly.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**ArrayNumber** | **List<decimal?>** |  | [optional] 
+**ArrayNumber** | **List<decimal>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/ArrayTest.md

@@ -6,7 +6,7 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **ArrayOfString** | **List<string>** |  | [optional] 
-**ArrayArrayOfInteger** | **List<List<long?>>** |  | [optional] 
+**ArrayArrayOfInteger** | **List<List<long>>** |  | [optional] 
 **ArrayArrayOfModel** | **List<List<ReadOnlyFirst>>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClient/docs/Cat.md

@@ -7,7 +7,7 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **ClassName** | **string** |  | 
 **Color** | **string** |  | [optional] [default to "red"]
-**Declawed** | **bool?** |  | [optional] 
+**Declawed** | **bool** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/CatAllOf.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Declawed** | **bool?** |  | [optional] 
+**Declawed** | **bool** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/Category.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
+**Id** | **long** |  | [optional] 
 **Name** | **string** |  | [default to "default-name"]
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClient/docs/EnumTest.md

@@ -7,8 +7,8 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **EnumString** | **string** |  | [optional] 
 **EnumStringRequired** | **string** |  | 
-**EnumInteger** | **int?** |  | [optional] 
-**EnumNumber** | **double?** |  | [optional] 
+**EnumInteger** | **int** |  | [optional] 
+**EnumNumber** | **double** |  | [optional] 
 **OuterEnum** | **OuterEnum** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClient/docs/FakeApi.md

@@ -96,7 +96,7 @@ No authorization required
 
 ## FakeOuterBooleanSerialize
 
-> bool? FakeOuterBooleanSerialize (bool? body = null)
+> bool FakeOuterBooleanSerialize (bool body = null)
 
 
 
@@ -119,11 +119,11 @@ namespace Example
         {
             Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             var apiInstance = new FakeApi(Configuration.Default);
-            var body = true;  // bool? | Input boolean as post body (optional) 
+            var body = true;  // bool | Input boolean as post body (optional) 
 
             try
             {
-                bool? result = apiInstance.FakeOuterBooleanSerialize(body);
+                bool result = apiInstance.FakeOuterBooleanSerialize(body);
                 Debug.WriteLine(result);
             }
             catch (ApiException e)
@@ -142,11 +142,11 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | **bool?**| Input boolean as post body | [optional] 
+ **body** | **bool**| Input boolean as post body | [optional] 
 
 ### Return type
 
-**bool?**
+**bool**
 
 ### Authorization
 
@@ -244,7 +244,7 @@ No authorization required
 
 ## FakeOuterNumberSerialize
 
-> decimal? FakeOuterNumberSerialize (decimal? body = null)
+> decimal FakeOuterNumberSerialize (decimal body = null)
 
 
 
@@ -267,11 +267,11 @@ namespace Example
         {
             Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             var apiInstance = new FakeApi(Configuration.Default);
-            var body = 8.14;  // decimal? | Input number as post body (optional) 
+            var body = 8.14;  // decimal | Input number as post body (optional) 
 
             try
             {
-                decimal? result = apiInstance.FakeOuterNumberSerialize(body);
+                decimal result = apiInstance.FakeOuterNumberSerialize(body);
                 Debug.WriteLine(result);
             }
             catch (ApiException e)
@@ -290,11 +290,11 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | **decimal?**| Input number as post body | [optional] 
+ **body** | **decimal**| Input number as post body | [optional] 
 
 ### Return type
 
-**decimal?**
+**decimal**
 
 ### Authorization
 
@@ -613,7 +613,7 @@ No authorization required
 
 ## TestEndpointParameters
 
-> void TestEndpointParameters (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null)
+> void TestEndpointParameters (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = null, int int32 = null, long int64 = null, float _float = null, string _string = null, System.IO.Stream binary = null, DateTime date = null, DateTime dateTime = null, string password = null, string callback = null)
 
 Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 
@@ -640,18 +640,18 @@ namespace Example
             Configuration.Default.Password = "YOUR_PASSWORD";
 
             var apiInstance = new FakeApi(Configuration.Default);
-            var number = 8.14;  // decimal? | None
-            var _double = 1.2D;  // double? | None
+            var number = 8.14;  // decimal | None
+            var _double = 1.2D;  // double | None
             var patternWithoutDelimiter = patternWithoutDelimiter_example;  // string | None
             var _byte = BYTE_ARRAY_DATA_HERE;  // byte[] | None
-            var integer = 56;  // int? | None (optional) 
-            var int32 = 56;  // int? | None (optional) 
-            var int64 = 789;  // long? | None (optional) 
-            var _float = 3.4F;  // float? | None (optional) 
+            var integer = 56;  // int | None (optional) 
+            var int32 = 56;  // int | None (optional) 
+            var int64 = 789;  // long | None (optional) 
+            var _float = 3.4F;  // float | None (optional) 
             var _string = _string_example;  // string | None (optional) 
             var binary = BINARY_DATA_HERE;  // System.IO.Stream | None (optional) 
-            var date = 2013-10-20;  // DateTime? | None (optional) 
-            var dateTime = 2013-10-20T19:20:30+01:00;  // DateTime? | None (optional) 
+            var date = 2013-10-20;  // DateTime | None (optional) 
+            var dateTime = 2013-10-20T19:20:30+01:00;  // DateTime | None (optional) 
             var password = password_example;  // string | None (optional) 
             var callback = callback_example;  // string | None (optional) 
 
@@ -676,18 +676,18 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **number** | **decimal?**| None | 
- **_double** | **double?**| None | 
+ **number** | **decimal**| None | 
+ **_double** | **double**| None | 
  **patternWithoutDelimiter** | **string**| None | 
  **_byte** | **byte[]**| None | 
- **integer** | **int?**| None | [optional] 
- **int32** | **int?**| None | [optional] 
- **int64** | **long?**| None | [optional] 
- **_float** | **float?**| None | [optional] 
+ **integer** | **int**| None | [optional] 
+ **int32** | **int**| None | [optional] 
+ **int64** | **long**| None | [optional] 
+ **_float** | **float**| None | [optional] 
  **_string** | **string**| None | [optional] 
  **binary** | **System.IO.Stream**| None | [optional] 
- **date** | **DateTime?**| None | [optional] 
- **dateTime** | **DateTime?**| None | [optional] 
+ **date** | **DateTime**| None | [optional] 
+ **dateTime** | **DateTime**| None | [optional] 
  **password** | **string**| None | [optional] 
  **callback** | **string**| None | [optional] 
 
@@ -718,7 +718,7 @@ void (empty response body)
 
 ## TestEnumParameters
 
-> void TestEnumParameters (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
+> void TestEnumParameters (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int enumQueryInteger = null, double enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
 
 To test enum parameters
 
@@ -745,8 +745,8 @@ namespace Example
             var enumHeaderString = enumHeaderString_example;  // string | Header parameter enum test (string) (optional)  (default to -efg)
             var enumQueryStringArray = enumQueryStringArray_example;  // List<string> | Query parameter enum test (string array) (optional) 
             var enumQueryString = enumQueryString_example;  // string | Query parameter enum test (string) (optional)  (default to -efg)
-            var enumQueryInteger = 56;  // int? | Query parameter enum test (double) (optional) 
-            var enumQueryDouble = 1.2D;  // double? | Query parameter enum test (double) (optional) 
+            var enumQueryInteger = 56;  // int | Query parameter enum test (double) (optional) 
+            var enumQueryDouble = 1.2D;  // double | Query parameter enum test (double) (optional) 
             var enumFormStringArray = new List<string>(); // List<string> | Form parameter enum test (string array) (optional)  (default to $)
             var enumFormString = enumFormString_example;  // string | Form parameter enum test (string) (optional)  (default to -efg)
 
@@ -775,8 +775,8 @@ Name | Type | Description  | Notes
  **enumHeaderString** | **string**| Header parameter enum test (string) | [optional] [default to -efg]
  **enumQueryStringArray** | **List&lt;string&gt;**| Query parameter enum test (string array) | [optional] 
  **enumQueryString** | **string**| Query parameter enum test (string) | [optional] [default to -efg]
- **enumQueryInteger** | **int?**| Query parameter enum test (double) | [optional] 
- **enumQueryDouble** | **double?**| Query parameter enum test (double) | [optional] 
+ **enumQueryInteger** | **int**| Query parameter enum test (double) | [optional] 
+ **enumQueryDouble** | **double**| Query parameter enum test (double) | [optional] 
  **enumFormStringArray** | [**List&lt;string&gt;**](string.md)| Form parameter enum test (string array) | [optional] [default to $]
  **enumFormString** | **string**| Form parameter enum test (string) | [optional] [default to -efg]
 
@@ -807,7 +807,7 @@ No authorization required
 
 ## TestGroupParameters
 
-> void TestGroupParameters (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null)
+> void TestGroupParameters (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = null, bool booleanGroup = null, long int64Group = null)
 
 Fake endpoint to test group parameters (optional)
 
@@ -830,12 +830,12 @@ namespace Example
         {
             Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             var apiInstance = new FakeApi(Configuration.Default);
-            var requiredStringGroup = 56;  // int? | Required String in group parameters
-            var requiredBooleanGroup = true;  // bool? | Required Boolean in group parameters
-            var requiredInt64Group = 789;  // long? | Required Integer in group parameters
-            var stringGroup = 56;  // int? | String in group parameters (optional) 
-            var booleanGroup = true;  // bool? | Boolean in group parameters (optional) 
-            var int64Group = 789;  // long? | Integer in group parameters (optional) 
+            var requiredStringGroup = 56;  // int | Required String in group parameters
+            var requiredBooleanGroup = true;  // bool | Required Boolean in group parameters
+            var requiredInt64Group = 789;  // long | Required Integer in group parameters
+            var stringGroup = 56;  // int | String in group parameters (optional) 
+            var booleanGroup = true;  // bool | Boolean in group parameters (optional) 
+            var int64Group = 789;  // long | Integer in group parameters (optional) 
 
             try
             {
@@ -858,12 +858,12 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **requiredStringGroup** | **int?**| Required String in group parameters | 
- **requiredBooleanGroup** | **bool?**| Required Boolean in group parameters | 
- **requiredInt64Group** | **long?**| Required Integer in group parameters | 
- **stringGroup** | **int?**| String in group parameters | [optional] 
- **booleanGroup** | **bool?**| Boolean in group parameters | [optional] 
- **int64Group** | **long?**| Integer in group parameters | [optional] 
+ **requiredStringGroup** | **int**| Required String in group parameters | 
+ **requiredBooleanGroup** | **bool**| Required Boolean in group parameters | 
+ **requiredInt64Group** | **long**| Required Integer in group parameters | 
+ **stringGroup** | **int**| String in group parameters | [optional] 
+ **booleanGroup** | **bool**| Boolean in group parameters | [optional] 
+ **int64Group** | **long**| Integer in group parameters | [optional] 
 
 ### Return type
 

samples/client/petstore/csharp/OpenAPIClient/docs/FormatTest.md

@@ -5,18 +5,18 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Integer** | **int?** |  | [optional] 
-**Int32** | **int?** |  | [optional] 
-**Int64** | **long?** |  | [optional] 
-**Number** | **decimal?** |  | 
-**Float** | **float?** |  | [optional] 
-**Double** | **double?** |  | [optional] 
+**Integer** | **int** |  | [optional] 
+**Int32** | **int** |  | [optional] 
+**Int64** | **long** |  | [optional] 
+**Number** | **decimal** |  | 
+**Float** | **float** |  | [optional] 
+**Double** | **double** |  | [optional] 
 **String** | **string** |  | [optional] 
 **Byte** | **byte[]** |  | 
 **Binary** | **System.IO.Stream** |  | [optional] 
-**Date** | **DateTime?** |  | 
-**DateTime** | **DateTime?** |  | [optional] 
-**Uuid** | **Guid?** |  | [optional] 
+**Date** | **DateTime** |  | 
+**DateTime** | **DateTime** |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
 **Password** | **string** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClient/docs/MapTest.md

@@ -7,8 +7,8 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **MapMapOfString** | **Dictionary<string, Dictionary<string, string>>** |  | [optional] 
 **MapOfEnumString** | **Dictionary<string, string>** |  | [optional] 
-**DirectMap** | **Dictionary<string, bool?>** |  | [optional] 
-**IndirectMap** | **Dictionary<string, bool?>** |  | [optional] 
+**DirectMap** | **Dictionary<string, bool>** |  | [optional] 
+**IndirectMap** | **Dictionary<string, bool>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/MixedPropertiesAndAdditionalPropertiesClass.md

@@ -5,8 +5,8 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Uuid** | **Guid?** |  | [optional] 
-**DateTime** | **DateTime?** |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
+**DateTime** | **DateTime** |  | [optional] 
 **Map** | [**Dictionary<string, Animal>**](Animal.md) |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClient/docs/Model200Response.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Name** | **int?** |  | [optional] 
+**Name** | **int** |  | [optional] 
 **Class** | **string** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClient/docs/Name.md

@@ -5,10 +5,10 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**_Name** | **int?** |  | 
-**SnakeCase** | **int?** |  | [optional] 
+**_Name** | **int** |  | 
+**SnakeCase** | **int** |  | [optional] 
 **Property** | **string** |  | [optional] 
-**_123Number** | **int?** |  | [optional] 
+**_123Number** | **int** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/NumberOnly.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**JustNumber** | **decimal?** |  | [optional] 
+**JustNumber** | **decimal** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/Order.md

@@ -5,12 +5,12 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
-**PetId** | **long?** |  | [optional] 
-**Quantity** | **int?** |  | [optional] 
-**ShipDate** | **DateTime?** |  | [optional] 
+**Id** | **long** |  | [optional] 
+**PetId** | **long** |  | [optional] 
+**Quantity** | **int** |  | [optional] 
+**ShipDate** | **DateTime** |  | [optional] 
 **Status** | **string** | Order Status | [optional] 
-**Complete** | **bool?** |  | [optional] [default to false]
+**Complete** | **bool** |  | [optional] [default to false]
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/OuterComposite.md

@@ -5,9 +5,9 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**MyNumber** | **decimal?** |  | [optional] 
+**MyNumber** | **decimal** |  | [optional] 
 **MyString** | **string** |  | [optional] 
-**MyBoolean** | **bool?** |  | [optional] 
+**MyBoolean** | **bool** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/Pet.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
+**Id** | **long** |  | [optional] 
 **Category** | [**Category**](Category.md) |  | [optional] 
 **Name** | **string** |  | 
 **PhotoUrls** | **List<string>** |  | 

samples/client/petstore/csharp/OpenAPIClient/docs/PetApi.md

@@ -94,7 +94,7 @@ void (empty response body)
 
 ## DeletePet
 
-> void DeletePet (long? petId, string apiKey = null)
+> void DeletePet (long petId, string apiKey = null)
 
 Deletes a pet
 
@@ -118,7 +118,7 @@ namespace Example
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
             var apiInstance = new PetApi(Configuration.Default);
-            var petId = 789;  // long? | Pet id to delete
+            var petId = 789;  // long | Pet id to delete
             var apiKey = apiKey_example;  // string |  (optional) 
 
             try
@@ -142,7 +142,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| Pet id to delete | 
+ **petId** | **long**| Pet id to delete | 
  **apiKey** | **string**|  | [optional] 
 
 ### Return type
@@ -330,7 +330,7 @@ Name | Type | Description  | Notes
 
 ## GetPetById
 
-> Pet GetPetById (long? petId)
+> Pet GetPetById (long petId)
 
 Find pet by ID
 
@@ -358,7 +358,7 @@ namespace Example
             // Configuration.Default.AddApiKeyPrefix("api_key", "Bearer");
 
             var apiInstance = new PetApi(Configuration.Default);
-            var petId = 789;  // long? | ID of pet to return
+            var petId = 789;  // long | ID of pet to return
 
             try
             {
@@ -382,7 +382,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet to return | 
+ **petId** | **long**| ID of pet to return | 
 
 ### Return type
 
@@ -490,7 +490,7 @@ void (empty response body)
 
 ## UpdatePetWithForm
 
-> void UpdatePetWithForm (long? petId, string name = null, string status = null)
+> void UpdatePetWithForm (long petId, string name = null, string status = null)
 
 Updates a pet in the store with form data
 
@@ -514,7 +514,7 @@ namespace Example
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
             var apiInstance = new PetApi(Configuration.Default);
-            var petId = 789;  // long? | ID of pet that needs to be updated
+            var petId = 789;  // long | ID of pet that needs to be updated
             var name = name_example;  // string | Updated name of the pet (optional) 
             var status = status_example;  // string | Updated status of the pet (optional) 
 
@@ -539,7 +539,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet that needs to be updated | 
+ **petId** | **long**| ID of pet that needs to be updated | 
  **name** | **string**| Updated name of the pet | [optional] 
  **status** | **string**| Updated status of the pet | [optional] 
 
@@ -569,7 +569,7 @@ void (empty response body)
 
 ## UploadFile
 
-> ApiResponse UploadFile (long? petId, string additionalMetadata = null, System.IO.Stream file = null)
+> ApiResponse UploadFile (long petId, string additionalMetadata = null, System.IO.Stream file = null)
 
 uploads an image
 
@@ -593,7 +593,7 @@ namespace Example
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
             var apiInstance = new PetApi(Configuration.Default);
-            var petId = 789;  // long? | ID of pet to update
+            var petId = 789;  // long | ID of pet to update
             var additionalMetadata = additionalMetadata_example;  // string | Additional data to pass to server (optional) 
             var file = BINARY_DATA_HERE;  // System.IO.Stream | file to upload (optional) 
 
@@ -619,7 +619,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet to update | 
+ **petId** | **long**| ID of pet to update | 
  **additionalMetadata** | **string**| Additional data to pass to server | [optional] 
  **file** | **System.IO.Stream**| file to upload | [optional] 
 
@@ -649,7 +649,7 @@ Name | Type | Description  | Notes
 
 ## UploadFileWithRequiredFile
 
-> ApiResponse UploadFileWithRequiredFile (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null)
+> ApiResponse UploadFileWithRequiredFile (long petId, System.IO.Stream requiredFile, string additionalMetadata = null)
 
 uploads an image (required)
 
@@ -673,7 +673,7 @@ namespace Example
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
             var apiInstance = new PetApi(Configuration.Default);
-            var petId = 789;  // long? | ID of pet to update
+            var petId = 789;  // long | ID of pet to update
             var requiredFile = BINARY_DATA_HERE;  // System.IO.Stream | file to upload
             var additionalMetadata = additionalMetadata_example;  // string | Additional data to pass to server (optional) 
 
@@ -699,7 +699,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet to update | 
+ **petId** | **long**| ID of pet to update | 
  **requiredFile** | **System.IO.Stream**| file to upload | 
  **additionalMetadata** | **string**| Additional data to pass to server | [optional] 
 

samples/client/petstore/csharp/OpenAPIClient/docs/Return.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**_Return** | **int?** |  | [optional] 
+**_Return** | **int** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/SpecialModelName.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**SpecialPropertyName** | **long?** |  | [optional] 
+**SpecialPropertyName** | **long** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/StoreApi.md

@@ -88,7 +88,7 @@ No authorization required
 
 ## GetInventory
 
-> Dictionary<string, int?> GetInventory ()
+> Dictionary<string, int> GetInventory ()
 
 Returns pet inventories by status
 
@@ -120,7 +120,7 @@ namespace Example
             try
             {
                 // Returns pet inventories by status
-                Dictionary<string, int?> result = apiInstance.GetInventory();
+                Dictionary<string, int> result = apiInstance.GetInventory();
                 Debug.WriteLine(result);
             }
             catch (ApiException e)
@@ -140,7 +140,7 @@ This endpoint does not need any parameter.
 
 ### Return type
 
-**Dictionary<string, int?>**
+**Dictionary<string, int>**
 
 ### Authorization
 
@@ -164,7 +164,7 @@ This endpoint does not need any parameter.
 
 ## GetOrderById
 
-> Order GetOrderById (long? orderId)
+> Order GetOrderById (long orderId)
 
 Find purchase order by ID
 
@@ -187,7 +187,7 @@ namespace Example
         {
             Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             var apiInstance = new StoreApi(Configuration.Default);
-            var orderId = 789;  // long? | ID of pet that needs to be fetched
+            var orderId = 789;  // long | ID of pet that needs to be fetched
 
             try
             {
@@ -211,7 +211,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **orderId** | **long?**| ID of pet that needs to be fetched | 
+ **orderId** | **long**| ID of pet that needs to be fetched | 
 
 ### Return type
 

samples/client/petstore/csharp/OpenAPIClient/docs/Tag.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
+**Id** | **long** |  | [optional] 
 **Name** | **string** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClient/docs/TypeHolderDefault.md

@@ -6,10 +6,10 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **StringItem** | **string** |  | [default to "what"]
-**NumberItem** | **decimal?** |  | 
-**IntegerItem** | **int?** |  | 
-**BoolItem** | **bool?** |  | [default to true]
-**ArrayItem** | **List<int?>** |  | 
+**NumberItem** | **decimal** |  | 
+**IntegerItem** | **int** |  | 
+**BoolItem** | **bool** |  | [default to true]
+**ArrayItem** | **List<int>** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/TypeHolderExample.md

@@ -6,10 +6,10 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **StringItem** | **string** |  | 
-**NumberItem** | **decimal?** |  | 
-**IntegerItem** | **int?** |  | 
-**BoolItem** | **bool?** |  | 
-**ArrayItem** | **List<int?>** |  | 
+**NumberItem** | **decimal** |  | 
+**IntegerItem** | **int** |  | 
+**BoolItem** | **bool** |  | 
+**ArrayItem** | **List<int>** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/User.md

@@ -5,14 +5,14 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
+**Id** | **long** |  | [optional] 
 **Username** | **string** |  | [optional] 
 **FirstName** | **string** |  | [optional] 
 **LastName** | **string** |  | [optional] 
 **Email** | **string** |  | [optional] 
 **Password** | **string** |  | [optional] 
 **Phone** | **string** |  | [optional] 
-**UserStatus** | **int?** | User Status | [optional] 
+**UserStatus** | **int** | User Status | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/docs/XmlItem.md

@@ -6,34 +6,34 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **AttributeString** | **string** |  | [optional] 
-**AttributeNumber** | **decimal?** |  | [optional] 
-**AttributeInteger** | **int?** |  | [optional] 
-**AttributeBoolean** | **bool?** |  | [optional] 
-**WrappedArray** | **List<int?>** |  | [optional] 
+**AttributeNumber** | **decimal** |  | [optional] 
+**AttributeInteger** | **int** |  | [optional] 
+**AttributeBoolean** | **bool** |  | [optional] 
+**WrappedArray** | **List<int>** |  | [optional] 
 **NameString** | **string** |  | [optional] 
-**NameNumber** | **decimal?** |  | [optional] 
-**NameInteger** | **int?** |  | [optional] 
-**NameBoolean** | **bool?** |  | [optional] 
-**NameArray** | **List<int?>** |  | [optional] 
-**NameWrappedArray** | **List<int?>** |  | [optional] 
+**NameNumber** | **decimal** |  | [optional] 
+**NameInteger** | **int** |  | [optional] 
+**NameBoolean** | **bool** |  | [optional] 
+**NameArray** | **List<int>** |  | [optional] 
+**NameWrappedArray** | **List<int>** |  | [optional] 
 **PrefixString** | **string** |  | [optional] 
-**PrefixNumber** | **decimal?** |  | [optional] 
-**PrefixInteger** | **int?** |  | [optional] 
-**PrefixBoolean** | **bool?** |  | [optional] 
-**PrefixArray** | **List<int?>** |  | [optional] 
-**PrefixWrappedArray** | **List<int?>** |  | [optional] 
+**PrefixNumber** | **decimal** |  | [optional] 
+**PrefixInteger** | **int** |  | [optional] 
+**PrefixBoolean** | **bool** |  | [optional] 
+**PrefixArray** | **List<int>** |  | [optional] 
+**PrefixWrappedArray** | **List<int>** |  | [optional] 
 **NamespaceString** | **string** |  | [optional] 
-**NamespaceNumber** | **decimal?** |  | [optional] 
-**NamespaceInteger** | **int?** |  | [optional] 
-**NamespaceBoolean** | **bool?** |  | [optional] 
-**NamespaceArray** | **List<int?>** |  | [optional] 
-**NamespaceWrappedArray** | **List<int?>** |  | [optional] 
+**NamespaceNumber** | **decimal** |  | [optional] 
+**NamespaceInteger** | **int** |  | [optional] 
+**NamespaceBoolean** | **bool** |  | [optional] 
+**NamespaceArray** | **List<int>** |  | [optional] 
+**NamespaceWrappedArray** | **List<int>** |  | [optional] 
 **PrefixNsString** | **string** |  | [optional] 
-**PrefixNsNumber** | **decimal?** |  | [optional] 
-**PrefixNsInteger** | **int?** |  | [optional] 
-**PrefixNsBoolean** | **bool?** |  | [optional] 
-**PrefixNsArray** | **List<int?>** |  | [optional] 
-**PrefixNsWrappedArray** | **List<int?>** |  | [optional] 
+**PrefixNsNumber** | **decimal** |  | [optional] 
+**PrefixNsInteger** | **int** |  | [optional] 
+**PrefixNsBoolean** | **bool** |  | [optional] 
+**PrefixNsArray** | **List<int>** |  | [optional] 
+**PrefixNsWrappedArray** | **List<int>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Api/AnotherFakeApi.cs

@@ -197,7 +197,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">client model</param>
         /// <returns>ApiResponse of ModelClient</returns>
-        public ApiResponse< ModelClient > Call123TestSpecialTagsWithHttpInfo (ModelClient body)
+        public ApiResponse<ModelClient> Call123TestSpecialTagsWithHttpInfo (ModelClient body)
         {
             // verify the required parameter 'body' is set
             if (body == null)

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Api/FakeApi.cs

@@ -53,8 +53,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>bool?</returns>
-        bool? FakeOuterBooleanSerialize (bool? body = null);
+        /// <returns>bool</returns>
+        bool FakeOuterBooleanSerialize (bool body = default(bool));
 
         /// <summary>
         /// 
@@ -64,8 +64,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>ApiResponse of bool?</returns>
-        ApiResponse<bool?> FakeOuterBooleanSerializeWithHttpInfo (bool? body = null);
+        /// <returns>ApiResponse of bool</returns>
+        ApiResponse<bool> FakeOuterBooleanSerializeWithHttpInfo (bool body = default(bool));
         /// <summary>
         /// 
         /// </summary>
@@ -75,7 +75,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>OuterComposite</returns>
-        OuterComposite FakeOuterCompositeSerialize (OuterComposite body = null);
+        OuterComposite FakeOuterCompositeSerialize (OuterComposite body = default(OuterComposite));
 
         /// <summary>
         /// 
@@ -86,7 +86,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>ApiResponse of OuterComposite</returns>
-        ApiResponse<OuterComposite> FakeOuterCompositeSerializeWithHttpInfo (OuterComposite body = null);
+        ApiResponse<OuterComposite> FakeOuterCompositeSerializeWithHttpInfo (OuterComposite body = default(OuterComposite));
         /// <summary>
         /// 
         /// </summary>
@@ -95,8 +95,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>decimal?</returns>
-        decimal? FakeOuterNumberSerialize (decimal? body = null);
+        /// <returns>decimal</returns>
+        decimal FakeOuterNumberSerialize (decimal body = default(decimal));
 
         /// <summary>
         /// 
@@ -106,8 +106,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>ApiResponse of decimal?</returns>
-        ApiResponse<decimal?> FakeOuterNumberSerializeWithHttpInfo (decimal? body = null);
+        /// <returns>ApiResponse of decimal</returns>
+        ApiResponse<decimal> FakeOuterNumberSerializeWithHttpInfo (decimal body = default(decimal));
         /// <summary>
         /// 
         /// </summary>
@@ -117,7 +117,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>string</returns>
-        string FakeOuterStringSerialize (string body = null);
+        string FakeOuterStringSerialize (string body = default(string));
 
         /// <summary>
         /// 
@@ -128,7 +128,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>ApiResponse of string</returns>
-        ApiResponse<string> FakeOuterStringSerializeWithHttpInfo (string body = null);
+        ApiResponse<string> FakeOuterStringSerializeWithHttpInfo (string body = default(string));
         /// <summary>
         /// 
         /// </summary>
@@ -216,7 +216,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns></returns>
-        void TestEndpointParameters (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null);
+        void TestEndpointParameters (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string));
 
         /// <summary>
         /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
@@ -240,7 +240,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        ApiResponse<Object> TestEndpointParametersWithHttpInfo (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null);
+        ApiResponse<Object> TestEndpointParametersWithHttpInfo (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string));
         /// <summary>
         /// To test enum parameters
         /// </summary>
@@ -257,7 +257,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns></returns>
-        void TestEnumParameters (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null);
+        void TestEnumParameters (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string));
 
         /// <summary>
         /// To test enum parameters
@@ -275,7 +275,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        ApiResponse<Object> TestEnumParametersWithHttpInfo (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null);
+        ApiResponse<Object> TestEnumParametersWithHttpInfo (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string));
         /// <summary>
         /// Fake endpoint to test group parameters (optional)
         /// </summary>
@@ -290,7 +290,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns></returns>
-        void TestGroupParameters (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null);
+        void TestGroupParameters (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long));
 
         /// <summary>
         /// Fake endpoint to test group parameters (optional)
@@ -306,7 +306,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        ApiResponse<Object> TestGroupParametersWithHttpInfo (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null);
+        ApiResponse<Object> TestGroupParametersWithHttpInfo (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long));
         /// <summary>
         /// test inline additionalProperties
         /// </summary>
@@ -382,8 +382,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>Task of bool?</returns>
-        System.Threading.Tasks.Task<bool?> FakeOuterBooleanSerializeAsync (bool? body = null);
+        /// <returns>Task of bool</returns>
+        System.Threading.Tasks.Task<bool> FakeOuterBooleanSerializeAsync (bool body = default(bool));
 
         /// <summary>
         /// 
@@ -393,8 +393,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>Task of ApiResponse (bool?)</returns>
-        System.Threading.Tasks.Task<ApiResponse<bool?>> FakeOuterBooleanSerializeAsyncWithHttpInfo (bool? body = null);
+        /// <returns>Task of ApiResponse (bool)</returns>
+        System.Threading.Tasks.Task<ApiResponse<bool>> FakeOuterBooleanSerializeAsyncWithHttpInfo (bool body = default(bool));
         /// <summary>
         /// 
         /// </summary>
@@ -404,7 +404,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>Task of OuterComposite</returns>
-        System.Threading.Tasks.Task<OuterComposite> FakeOuterCompositeSerializeAsync (OuterComposite body = null);
+        System.Threading.Tasks.Task<OuterComposite> FakeOuterCompositeSerializeAsync (OuterComposite body = default(OuterComposite));
 
         /// <summary>
         /// 
@@ -415,7 +415,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>Task of ApiResponse (OuterComposite)</returns>
-        System.Threading.Tasks.Task<ApiResponse<OuterComposite>> FakeOuterCompositeSerializeAsyncWithHttpInfo (OuterComposite body = null);
+        System.Threading.Tasks.Task<ApiResponse<OuterComposite>> FakeOuterCompositeSerializeAsyncWithHttpInfo (OuterComposite body = default(OuterComposite));
         /// <summary>
         /// 
         /// </summary>
@@ -424,8 +424,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>Task of decimal?</returns>
-        System.Threading.Tasks.Task<decimal?> FakeOuterNumberSerializeAsync (decimal? body = null);
+        /// <returns>Task of decimal</returns>
+        System.Threading.Tasks.Task<decimal> FakeOuterNumberSerializeAsync (decimal body = default(decimal));
 
         /// <summary>
         /// 
@@ -435,8 +435,8 @@ namespace Org.OpenAPITools.Api
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>Task of ApiResponse (decimal?)</returns>
-        System.Threading.Tasks.Task<ApiResponse<decimal?>> FakeOuterNumberSerializeAsyncWithHttpInfo (decimal? body = null);
+        /// <returns>Task of ApiResponse (decimal)</returns>
+        System.Threading.Tasks.Task<ApiResponse<decimal>> FakeOuterNumberSerializeAsyncWithHttpInfo (decimal body = default(decimal));
         /// <summary>
         /// 
         /// </summary>
@@ -446,7 +446,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>Task of string</returns>
-        System.Threading.Tasks.Task<string> FakeOuterStringSerializeAsync (string body = null);
+        System.Threading.Tasks.Task<string> FakeOuterStringSerializeAsync (string body = default(string));
 
         /// <summary>
         /// 
@@ -457,7 +457,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>Task of ApiResponse (string)</returns>
-        System.Threading.Tasks.Task<ApiResponse<string>> FakeOuterStringSerializeAsyncWithHttpInfo (string body = null);
+        System.Threading.Tasks.Task<ApiResponse<string>> FakeOuterStringSerializeAsyncWithHttpInfo (string body = default(string));
         /// <summary>
         /// 
         /// </summary>
@@ -545,7 +545,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns>Task of void</returns>
-        System.Threading.Tasks.Task TestEndpointParametersAsync (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null);
+        System.Threading.Tasks.Task TestEndpointParametersAsync (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string));
 
         /// <summary>
         /// Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
@@ -569,7 +569,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        System.Threading.Tasks.Task<ApiResponse<Object>> TestEndpointParametersAsyncWithHttpInfo (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null);
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestEndpointParametersAsyncWithHttpInfo (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string));
         /// <summary>
         /// To test enum parameters
         /// </summary>
@@ -586,7 +586,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns>Task of void</returns>
-        System.Threading.Tasks.Task TestEnumParametersAsync (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null);
+        System.Threading.Tasks.Task TestEnumParametersAsync (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string));
 
         /// <summary>
         /// To test enum parameters
@@ -604,7 +604,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns>Task of ApiResponse</returns>
-        System.Threading.Tasks.Task<ApiResponse<Object>> TestEnumParametersAsyncWithHttpInfo (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null);
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestEnumParametersAsyncWithHttpInfo (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string));
         /// <summary>
         /// Fake endpoint to test group parameters (optional)
         /// </summary>
@@ -619,7 +619,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns>Task of void</returns>
-        System.Threading.Tasks.Task TestGroupParametersAsync (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null);
+        System.Threading.Tasks.Task TestGroupParametersAsync (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long));
 
         /// <summary>
         /// Fake endpoint to test group parameters (optional)
@@ -635,7 +635,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        System.Threading.Tasks.Task<ApiResponse<Object>> TestGroupParametersAsyncWithHttpInfo (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null);
+        System.Threading.Tasks.Task<ApiResponse<Object>> TestGroupParametersAsyncWithHttpInfo (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long));
         /// <summary>
         /// test inline additionalProperties
         /// </summary>
@@ -951,10 +951,10 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>bool?</returns>
-        public bool? FakeOuterBooleanSerialize (bool? body = null)
+        /// <returns>bool</returns>
+        public bool FakeOuterBooleanSerialize (bool body = default(bool))
         {
-             ApiResponse<bool?> localVarResponse = FakeOuterBooleanSerializeWithHttpInfo(body);
+             ApiResponse<bool> localVarResponse = FakeOuterBooleanSerializeWithHttpInfo(body);
              return localVarResponse.Data;
         }
 
@@ -963,8 +963,8 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>ApiResponse of bool?</returns>
-        public ApiResponse< bool? > FakeOuterBooleanSerializeWithHttpInfo (bool? body = null)
+        /// <returns>ApiResponse of bool</returns>
+        public ApiResponse<bool> FakeOuterBooleanSerializeWithHttpInfo (bool body = default(bool))
         {
 
             var localVarPath = "/fake/outer/boolean";
@@ -1011,9 +1011,9 @@ namespace Org.OpenAPITools.Api
                 if (exception != null) throw exception;
             }
 
-            return new ApiResponse<bool?>(localVarStatusCode,
+            return new ApiResponse<bool>(localVarStatusCode,
                 localVarResponse.Headers.ToDictionary(x => x.Name, x => string.Join(",", x.Value)),
-                (bool?) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(bool?)));
+                (bool) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(bool)));
         }
 
         /// <summary>
@@ -1021,10 +1021,10 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>Task of bool?</returns>
-        public async System.Threading.Tasks.Task<bool?> FakeOuterBooleanSerializeAsync (bool? body = null)
+        /// <returns>Task of bool</returns>
+        public async System.Threading.Tasks.Task<bool> FakeOuterBooleanSerializeAsync (bool body = default(bool))
         {
-             ApiResponse<bool?> localVarResponse = await FakeOuterBooleanSerializeAsyncWithHttpInfo(body);
+             ApiResponse<bool> localVarResponse = await FakeOuterBooleanSerializeAsyncWithHttpInfo(body);
              return localVarResponse.Data;
 
         }
@@ -1034,8 +1034,8 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input boolean as post body (optional)</param>
-        /// <returns>Task of ApiResponse (bool?)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<bool?>> FakeOuterBooleanSerializeAsyncWithHttpInfo (bool? body = null)
+        /// <returns>Task of ApiResponse (bool)</returns>
+        public async System.Threading.Tasks.Task<ApiResponse<bool>> FakeOuterBooleanSerializeAsyncWithHttpInfo (bool body = default(bool))
         {
 
             var localVarPath = "/fake/outer/boolean";
@@ -1082,9 +1082,9 @@ namespace Org.OpenAPITools.Api
                 if (exception != null) throw exception;
             }
 
-            return new ApiResponse<bool?>(localVarStatusCode,
+            return new ApiResponse<bool>(localVarStatusCode,
                 localVarResponse.Headers.ToDictionary(x => x.Name, x => string.Join(",", x.Value)),
-                (bool?) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(bool?)));
+                (bool) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(bool)));
         }
 
         /// <summary>
@@ -1093,7 +1093,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>OuterComposite</returns>
-        public OuterComposite FakeOuterCompositeSerialize (OuterComposite body = null)
+        public OuterComposite FakeOuterCompositeSerialize (OuterComposite body = default(OuterComposite))
         {
              ApiResponse<OuterComposite> localVarResponse = FakeOuterCompositeSerializeWithHttpInfo(body);
              return localVarResponse.Data;
@@ -1105,7 +1105,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>ApiResponse of OuterComposite</returns>
-        public ApiResponse< OuterComposite > FakeOuterCompositeSerializeWithHttpInfo (OuterComposite body = null)
+        public ApiResponse<OuterComposite> FakeOuterCompositeSerializeWithHttpInfo (OuterComposite body = default(OuterComposite))
         {
 
             var localVarPath = "/fake/outer/composite";
@@ -1163,7 +1163,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>Task of OuterComposite</returns>
-        public async System.Threading.Tasks.Task<OuterComposite> FakeOuterCompositeSerializeAsync (OuterComposite body = null)
+        public async System.Threading.Tasks.Task<OuterComposite> FakeOuterCompositeSerializeAsync (OuterComposite body = default(OuterComposite))
         {
              ApiResponse<OuterComposite> localVarResponse = await FakeOuterCompositeSerializeAsyncWithHttpInfo(body);
              return localVarResponse.Data;
@@ -1176,7 +1176,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input composite as post body (optional)</param>
         /// <returns>Task of ApiResponse (OuterComposite)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<OuterComposite>> FakeOuterCompositeSerializeAsyncWithHttpInfo (OuterComposite body = null)
+        public async System.Threading.Tasks.Task<ApiResponse<OuterComposite>> FakeOuterCompositeSerializeAsyncWithHttpInfo (OuterComposite body = default(OuterComposite))
         {
 
             var localVarPath = "/fake/outer/composite";
@@ -1233,10 +1233,10 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>decimal?</returns>
-        public decimal? FakeOuterNumberSerialize (decimal? body = null)
+        /// <returns>decimal</returns>
+        public decimal FakeOuterNumberSerialize (decimal body = default(decimal))
         {
-             ApiResponse<decimal?> localVarResponse = FakeOuterNumberSerializeWithHttpInfo(body);
+             ApiResponse<decimal> localVarResponse = FakeOuterNumberSerializeWithHttpInfo(body);
              return localVarResponse.Data;
         }
 
@@ -1245,8 +1245,8 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>ApiResponse of decimal?</returns>
-        public ApiResponse< decimal? > FakeOuterNumberSerializeWithHttpInfo (decimal? body = null)
+        /// <returns>ApiResponse of decimal</returns>
+        public ApiResponse<decimal> FakeOuterNumberSerializeWithHttpInfo (decimal body = default(decimal))
         {
 
             var localVarPath = "/fake/outer/number";
@@ -1293,9 +1293,9 @@ namespace Org.OpenAPITools.Api
                 if (exception != null) throw exception;
             }
 
-            return new ApiResponse<decimal?>(localVarStatusCode,
+            return new ApiResponse<decimal>(localVarStatusCode,
                 localVarResponse.Headers.ToDictionary(x => x.Name, x => string.Join(",", x.Value)),
-                (decimal?) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(decimal?)));
+                (decimal) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(decimal)));
         }
 
         /// <summary>
@@ -1303,10 +1303,10 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>Task of decimal?</returns>
-        public async System.Threading.Tasks.Task<decimal?> FakeOuterNumberSerializeAsync (decimal? body = null)
+        /// <returns>Task of decimal</returns>
+        public async System.Threading.Tasks.Task<decimal> FakeOuterNumberSerializeAsync (decimal body = default(decimal))
         {
-             ApiResponse<decimal?> localVarResponse = await FakeOuterNumberSerializeAsyncWithHttpInfo(body);
+             ApiResponse<decimal> localVarResponse = await FakeOuterNumberSerializeAsyncWithHttpInfo(body);
              return localVarResponse.Data;
 
         }
@@ -1316,8 +1316,8 @@ namespace Org.OpenAPITools.Api
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input number as post body (optional)</param>
-        /// <returns>Task of ApiResponse (decimal?)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<decimal?>> FakeOuterNumberSerializeAsyncWithHttpInfo (decimal? body = null)
+        /// <returns>Task of ApiResponse (decimal)</returns>
+        public async System.Threading.Tasks.Task<ApiResponse<decimal>> FakeOuterNumberSerializeAsyncWithHttpInfo (decimal body = default(decimal))
         {
 
             var localVarPath = "/fake/outer/number";
@@ -1364,9 +1364,9 @@ namespace Org.OpenAPITools.Api
                 if (exception != null) throw exception;
             }
 
-            return new ApiResponse<decimal?>(localVarStatusCode,
+            return new ApiResponse<decimal>(localVarStatusCode,
                 localVarResponse.Headers.ToDictionary(x => x.Name, x => string.Join(",", x.Value)),
-                (decimal?) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(decimal?)));
+                (decimal) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(decimal)));
         }
 
         /// <summary>
@@ -1375,7 +1375,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>string</returns>
-        public string FakeOuterStringSerialize (string body = null)
+        public string FakeOuterStringSerialize (string body = default(string))
         {
              ApiResponse<string> localVarResponse = FakeOuterStringSerializeWithHttpInfo(body);
              return localVarResponse.Data;
@@ -1387,7 +1387,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>ApiResponse of string</returns>
-        public ApiResponse< string > FakeOuterStringSerializeWithHttpInfo (string body = null)
+        public ApiResponse<string> FakeOuterStringSerializeWithHttpInfo (string body = default(string))
         {
 
             var localVarPath = "/fake/outer/string";
@@ -1445,7 +1445,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>Task of string</returns>
-        public async System.Threading.Tasks.Task<string> FakeOuterStringSerializeAsync (string body = null)
+        public async System.Threading.Tasks.Task<string> FakeOuterStringSerializeAsync (string body = default(string))
         {
              ApiResponse<string> localVarResponse = await FakeOuterStringSerializeAsyncWithHttpInfo(body);
              return localVarResponse.Data;
@@ -1458,7 +1458,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">Input string as post body (optional)</param>
         /// <returns>Task of ApiResponse (string)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<string>> FakeOuterStringSerializeAsyncWithHttpInfo (string body = null)
+        public async System.Threading.Tasks.Task<ApiResponse<string>> FakeOuterStringSerializeAsyncWithHttpInfo (string body = default(string))
         {
 
             var localVarPath = "/fake/outer/string";
@@ -1830,7 +1830,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">client model</param>
         /// <returns>ApiResponse of ModelClient</returns>
-        public ApiResponse< ModelClient > TestClientModelWithHttpInfo (ModelClient body)
+        public ApiResponse<ModelClient> TestClientModelWithHttpInfo (ModelClient body)
         {
             // verify the required parameter 'body' is set
             if (body == null)
@@ -1980,7 +1980,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns></returns>
-        public void TestEndpointParameters (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null)
+        public void TestEndpointParameters (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string))
         {
              TestEndpointParametersWithHttpInfo(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, _string, binary, date, dateTime, password, callback);
         }
@@ -2004,7 +2004,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        public ApiResponse<Object> TestEndpointParametersWithHttpInfo (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null)
+        public ApiResponse<Object> TestEndpointParametersWithHttpInfo (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string))
         {
             // verify the required parameter 'number' is set
             if (number == null)
@@ -2099,7 +2099,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns>Task of void</returns>
-        public async System.Threading.Tasks.Task TestEndpointParametersAsync (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null)
+        public async System.Threading.Tasks.Task TestEndpointParametersAsync (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string))
         {
              await TestEndpointParametersAsyncWithHttpInfo(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, _string, binary, date, dateTime, password, callback);
 
@@ -2124,7 +2124,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="password">None (optional)</param>
         /// <param name="callback">None (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Object>> TestEndpointParametersAsyncWithHttpInfo (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null)
+        public async System.Threading.Tasks.Task<ApiResponse<Object>> TestEndpointParametersAsyncWithHttpInfo (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = default(int), int int32 = default(int), long int64 = default(long), float _float = default(float), string _string = default(string), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), string password = default(string), string callback = default(string))
         {
             // verify the required parameter 'number' is set
             if (number == null)
@@ -2213,7 +2213,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns></returns>
-        public void TestEnumParameters (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
+        public void TestEnumParameters (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string))
         {
              TestEnumParametersWithHttpInfo(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
         }
@@ -2231,7 +2231,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        public ApiResponse<Object> TestEnumParametersWithHttpInfo (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
+        public ApiResponse<Object> TestEnumParametersWithHttpInfo (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string))
         {
 
             var localVarPath = "/fake";
@@ -2296,7 +2296,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns>Task of void</returns>
-        public async System.Threading.Tasks.Task TestEnumParametersAsync (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
+        public async System.Threading.Tasks.Task TestEnumParametersAsync (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string))
         {
              await TestEnumParametersAsyncWithHttpInfo(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
 
@@ -2315,7 +2315,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="enumFormStringArray">Form parameter enum test (string array) (optional, default to $)</param>
         /// <param name="enumFormString">Form parameter enum test (string) (optional, default to -efg)</param>
         /// <returns>Task of ApiResponse</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Object>> TestEnumParametersAsyncWithHttpInfo (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
+        public async System.Threading.Tasks.Task<ApiResponse<Object>> TestEnumParametersAsyncWithHttpInfo (List<string> enumHeaderStringArray = default(List<string>), string enumHeaderString = default(string), List<string> enumQueryStringArray = default(List<string>), string enumQueryString = default(string), int enumQueryInteger = default(int), double enumQueryDouble = default(double), List<string> enumFormStringArray = default(List<string>), string enumFormString = default(string))
         {
 
             var localVarPath = "/fake";
@@ -2378,7 +2378,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns></returns>
-        public void TestGroupParameters (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null)
+        public void TestGroupParameters (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long))
         {
              TestGroupParametersWithHttpInfo(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group);
         }
@@ -2394,7 +2394,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        public ApiResponse<Object> TestGroupParametersWithHttpInfo (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null)
+        public ApiResponse<Object> TestGroupParametersWithHttpInfo (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long))
         {
             // verify the required parameter 'requiredStringGroup' is set
             if (requiredStringGroup == null)
@@ -2463,7 +2463,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns>Task of void</returns>
-        public async System.Threading.Tasks.Task TestGroupParametersAsync (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null)
+        public async System.Threading.Tasks.Task TestGroupParametersAsync (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long))
         {
              await TestGroupParametersAsyncWithHttpInfo(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group);
 
@@ -2480,7 +2480,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="booleanGroup">Boolean in group parameters (optional)</param>
         /// <param name="int64Group">Integer in group parameters (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Object>> TestGroupParametersAsyncWithHttpInfo (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null)
+        public async System.Threading.Tasks.Task<ApiResponse<Object>> TestGroupParametersAsyncWithHttpInfo (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = default(int), bool booleanGroup = default(bool), long int64Group = default(long))
         {
             // verify the required parameter 'requiredStringGroup' is set
             if (requiredStringGroup == null)

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Api/FakeClassnameTags123Api.cs

@@ -197,7 +197,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">client model</param>
         /// <returns>ApiResponse of ModelClient</returns>
-        public ApiResponse< ModelClient > TestClassnameWithHttpInfo (ModelClient body)
+        public ApiResponse<ModelClient> TestClassnameWithHttpInfo (ModelClient body)
         {
             // verify the required parameter 'body' is set
             if (body == null)

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Api/PetApi.cs

@@ -55,7 +55,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns></returns>
-        void DeletePet (long? petId, string apiKey = null);
+        void DeletePet (long petId, string apiKey = default(string));
 
         /// <summary>
         /// Deletes a pet
@@ -67,7 +67,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        ApiResponse<Object> DeletePetWithHttpInfo (long? petId, string apiKey = null);
+        ApiResponse<Object> DeletePetWithHttpInfo (long petId, string apiKey = default(string));
         /// <summary>
         /// Finds Pets by status
         /// </summary>
@@ -119,7 +119,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>Pet</returns>
-        Pet GetPetById (long? petId);
+        Pet GetPetById (long petId);
 
         /// <summary>
         /// Find pet by ID
@@ -130,7 +130,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>ApiResponse of Pet</returns>
-        ApiResponse<Pet> GetPetByIdWithHttpInfo (long? petId);
+        ApiResponse<Pet> GetPetByIdWithHttpInfo (long petId);
         /// <summary>
         /// Update an existing pet
         /// </summary>
@@ -163,7 +163,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns></returns>
-        void UpdatePetWithForm (long? petId, string name = null, string status = null);
+        void UpdatePetWithForm (long petId, string name = default(string), string status = default(string));
 
         /// <summary>
         /// Updates a pet in the store with form data
@@ -176,7 +176,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        ApiResponse<Object> UpdatePetWithFormWithHttpInfo (long? petId, string name = null, string status = null);
+        ApiResponse<Object> UpdatePetWithFormWithHttpInfo (long petId, string name = default(string), string status = default(string));
         /// <summary>
         /// uploads an image
         /// </summary>
@@ -188,7 +188,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>ApiResponse</returns>
-        ApiResponse UploadFile (long? petId, string additionalMetadata = null, System.IO.Stream file = null);
+        ApiResponse UploadFile (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream));
 
         /// <summary>
         /// uploads an image
@@ -201,7 +201,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>ApiResponse of ApiResponse</returns>
-        ApiResponse<ApiResponse> UploadFileWithHttpInfo (long? petId, string additionalMetadata = null, System.IO.Stream file = null);
+        ApiResponse<ApiResponse> UploadFileWithHttpInfo (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream));
         /// <summary>
         /// uploads an image (required)
         /// </summary>
@@ -213,7 +213,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>ApiResponse</returns>
-        ApiResponse UploadFileWithRequiredFile (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null);
+        ApiResponse UploadFileWithRequiredFile (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string));
 
         /// <summary>
         /// uploads an image (required)
@@ -226,7 +226,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>ApiResponse of ApiResponse</returns>
-        ApiResponse<ApiResponse> UploadFileWithRequiredFileWithHttpInfo (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null);
+        ApiResponse<ApiResponse> UploadFileWithRequiredFileWithHttpInfo (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string));
         #endregion Synchronous Operations
         #region Asynchronous Operations
         /// <summary>
@@ -260,7 +260,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns>Task of void</returns>
-        System.Threading.Tasks.Task DeletePetAsync (long? petId, string apiKey = null);
+        System.Threading.Tasks.Task DeletePetAsync (long petId, string apiKey = default(string));
 
         /// <summary>
         /// Deletes a pet
@@ -272,7 +272,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        System.Threading.Tasks.Task<ApiResponse<Object>> DeletePetAsyncWithHttpInfo (long? petId, string apiKey = null);
+        System.Threading.Tasks.Task<ApiResponse<Object>> DeletePetAsyncWithHttpInfo (long petId, string apiKey = default(string));
         /// <summary>
         /// Finds Pets by status
         /// </summary>
@@ -324,7 +324,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>Task of Pet</returns>
-        System.Threading.Tasks.Task<Pet> GetPetByIdAsync (long? petId);
+        System.Threading.Tasks.Task<Pet> GetPetByIdAsync (long petId);
 
         /// <summary>
         /// Find pet by ID
@@ -335,7 +335,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>Task of ApiResponse (Pet)</returns>
-        System.Threading.Tasks.Task<ApiResponse<Pet>> GetPetByIdAsyncWithHttpInfo (long? petId);
+        System.Threading.Tasks.Task<ApiResponse<Pet>> GetPetByIdAsyncWithHttpInfo (long petId);
         /// <summary>
         /// Update an existing pet
         /// </summary>
@@ -368,7 +368,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns>Task of void</returns>
-        System.Threading.Tasks.Task UpdatePetWithFormAsync (long? petId, string name = null, string status = null);
+        System.Threading.Tasks.Task UpdatePetWithFormAsync (long petId, string name = default(string), string status = default(string));
 
         /// <summary>
         /// Updates a pet in the store with form data
@@ -381,7 +381,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        System.Threading.Tasks.Task<ApiResponse<Object>> UpdatePetWithFormAsyncWithHttpInfo (long? petId, string name = null, string status = null);
+        System.Threading.Tasks.Task<ApiResponse<Object>> UpdatePetWithFormAsyncWithHttpInfo (long petId, string name = default(string), string status = default(string));
         /// <summary>
         /// uploads an image
         /// </summary>
@@ -393,7 +393,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        System.Threading.Tasks.Task<ApiResponse> UploadFileAsync (long? petId, string additionalMetadata = null, System.IO.Stream file = null);
+        System.Threading.Tasks.Task<ApiResponse> UploadFileAsync (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream));
 
         /// <summary>
         /// uploads an image
@@ -406,7 +406,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>Task of ApiResponse (ApiResponse)</returns>
-        System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileAsyncWithHttpInfo (long? petId, string additionalMetadata = null, System.IO.Stream file = null);
+        System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileAsyncWithHttpInfo (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream));
         /// <summary>
         /// uploads an image (required)
         /// </summary>
@@ -418,7 +418,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        System.Threading.Tasks.Task<ApiResponse> UploadFileWithRequiredFileAsync (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null);
+        System.Threading.Tasks.Task<ApiResponse> UploadFileWithRequiredFileAsync (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string));
 
         /// <summary>
         /// uploads an image (required)
@@ -431,7 +431,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>Task of ApiResponse (ApiResponse)</returns>
-        System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileWithRequiredFileAsyncWithHttpInfo (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null);
+        System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileWithRequiredFileAsyncWithHttpInfo (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string));
         #endregion Asynchronous Operations
     }
 
@@ -709,7 +709,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns></returns>
-        public void DeletePet (long? petId, string apiKey = null)
+        public void DeletePet (long petId, string apiKey = default(string))
         {
              DeletePetWithHttpInfo(petId, apiKey);
         }
@@ -721,7 +721,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        public ApiResponse<Object> DeletePetWithHttpInfo (long? petId, string apiKey = null)
+        public ApiResponse<Object> DeletePetWithHttpInfo (long petId, string apiKey = default(string))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -782,7 +782,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns>Task of void</returns>
-        public async System.Threading.Tasks.Task DeletePetAsync (long? petId, string apiKey = null)
+        public async System.Threading.Tasks.Task DeletePetAsync (long petId, string apiKey = default(string))
         {
              await DeletePetAsyncWithHttpInfo(petId, apiKey);
 
@@ -795,7 +795,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="petId">Pet id to delete</param>
         /// <param name="apiKey"> (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Object>> DeletePetAsyncWithHttpInfo (long? petId, string apiKey = null)
+        public async System.Threading.Tasks.Task<ApiResponse<Object>> DeletePetAsyncWithHttpInfo (long petId, string apiKey = default(string))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -867,7 +867,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="status">Status values that need to be considered for filter</param>
         /// <returns>ApiResponse of List&lt;Pet&gt;</returns>
-        public ApiResponse< List<Pet> > FindPetsByStatusWithHttpInfo (List<string> status)
+        public ApiResponse<List<Pet>> FindPetsByStatusWithHttpInfo (List<string> status)
         {
             // verify the required parameter 'status' is set
             if (status == null)
@@ -1014,7 +1014,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="tags">Tags to filter by</param>
         /// <returns>ApiResponse of List&lt;Pet&gt;</returns>
-        public ApiResponse< List<Pet> > FindPetsByTagsWithHttpInfo (List<string> tags)
+        public ApiResponse<List<Pet>> FindPetsByTagsWithHttpInfo (List<string> tags)
         {
             // verify the required parameter 'tags' is set
             if (tags == null)
@@ -1149,7 +1149,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>Pet</returns>
-        public Pet GetPetById (long? petId)
+        public Pet GetPetById (long petId)
         {
              ApiResponse<Pet> localVarResponse = GetPetByIdWithHttpInfo(petId);
              return localVarResponse.Data;
@@ -1161,7 +1161,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>ApiResponse of Pet</returns>
-        public ApiResponse< Pet > GetPetByIdWithHttpInfo (long? petId)
+        public ApiResponse<Pet> GetPetByIdWithHttpInfo (long petId)
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -1221,7 +1221,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>Task of Pet</returns>
-        public async System.Threading.Tasks.Task<Pet> GetPetByIdAsync (long? petId)
+        public async System.Threading.Tasks.Task<Pet> GetPetByIdAsync (long petId)
         {
              ApiResponse<Pet> localVarResponse = await GetPetByIdAsyncWithHttpInfo(petId);
              return localVarResponse.Data;
@@ -1234,7 +1234,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="petId">ID of pet to return</param>
         /// <returns>Task of ApiResponse (Pet)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Pet>> GetPetByIdAsyncWithHttpInfo (long? petId)
+        public async System.Threading.Tasks.Task<ApiResponse<Pet>> GetPetByIdAsyncWithHttpInfo (long petId)
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -1455,7 +1455,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns></returns>
-        public void UpdatePetWithForm (long? petId, string name = null, string status = null)
+        public void UpdatePetWithForm (long petId, string name = default(string), string status = default(string))
         {
              UpdatePetWithFormWithHttpInfo(petId, name, status);
         }
@@ -1468,7 +1468,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns>ApiResponse of Object(void)</returns>
-        public ApiResponse<Object> UpdatePetWithFormWithHttpInfo (long? petId, string name = null, string status = null)
+        public ApiResponse<Object> UpdatePetWithFormWithHttpInfo (long petId, string name = default(string), string status = default(string))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -1532,7 +1532,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns>Task of void</returns>
-        public async System.Threading.Tasks.Task UpdatePetWithFormAsync (long? petId, string name = null, string status = null)
+        public async System.Threading.Tasks.Task UpdatePetWithFormAsync (long petId, string name = default(string), string status = default(string))
         {
              await UpdatePetWithFormAsyncWithHttpInfo(petId, name, status);
 
@@ -1546,7 +1546,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="name">Updated name of the pet (optional)</param>
         /// <param name="status">Updated status of the pet (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Object>> UpdatePetWithFormAsyncWithHttpInfo (long? petId, string name = null, string status = null)
+        public async System.Threading.Tasks.Task<ApiResponse<Object>> UpdatePetWithFormAsyncWithHttpInfo (long petId, string name = default(string), string status = default(string))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -1610,7 +1610,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>ApiResponse</returns>
-        public ApiResponse UploadFile (long? petId, string additionalMetadata = null, System.IO.Stream file = null)
+        public ApiResponse UploadFile (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream))
         {
              ApiResponse<ApiResponse> localVarResponse = UploadFileWithHttpInfo(petId, additionalMetadata, file);
              return localVarResponse.Data;
@@ -1624,7 +1624,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>ApiResponse of ApiResponse</returns>
-        public ApiResponse< ApiResponse > UploadFileWithHttpInfo (long? petId, string additionalMetadata = null, System.IO.Stream file = null)
+        public ApiResponse<ApiResponse> UploadFileWithHttpInfo (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -1689,7 +1689,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        public async System.Threading.Tasks.Task<ApiResponse> UploadFileAsync (long? petId, string additionalMetadata = null, System.IO.Stream file = null)
+        public async System.Threading.Tasks.Task<ApiResponse> UploadFileAsync (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream))
         {
              ApiResponse<ApiResponse> localVarResponse = await UploadFileAsyncWithHttpInfo(petId, additionalMetadata, file);
              return localVarResponse.Data;
@@ -1704,7 +1704,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <param name="file">file to upload (optional)</param>
         /// <returns>Task of ApiResponse (ApiResponse)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileAsyncWithHttpInfo (long? petId, string additionalMetadata = null, System.IO.Stream file = null)
+        public async System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileAsyncWithHttpInfo (long petId, string additionalMetadata = default(string), System.IO.Stream file = default(System.IO.Stream))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -1769,7 +1769,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>ApiResponse</returns>
-        public ApiResponse UploadFileWithRequiredFile (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null)
+        public ApiResponse UploadFileWithRequiredFile (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string))
         {
              ApiResponse<ApiResponse> localVarResponse = UploadFileWithRequiredFileWithHttpInfo(petId, requiredFile, additionalMetadata);
              return localVarResponse.Data;
@@ -1783,7 +1783,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>ApiResponse of ApiResponse</returns>
-        public ApiResponse< ApiResponse > UploadFileWithRequiredFileWithHttpInfo (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null)
+        public ApiResponse<ApiResponse> UploadFileWithRequiredFileWithHttpInfo (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)
@@ -1851,7 +1851,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>Task of ApiResponse</returns>
-        public async System.Threading.Tasks.Task<ApiResponse> UploadFileWithRequiredFileAsync (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null)
+        public async System.Threading.Tasks.Task<ApiResponse> UploadFileWithRequiredFileAsync (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string))
         {
              ApiResponse<ApiResponse> localVarResponse = await UploadFileWithRequiredFileAsyncWithHttpInfo(petId, requiredFile, additionalMetadata);
              return localVarResponse.Data;
@@ -1866,7 +1866,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="requiredFile">file to upload</param>
         /// <param name="additionalMetadata">Additional data to pass to server (optional)</param>
         /// <returns>Task of ApiResponse (ApiResponse)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileWithRequiredFileAsyncWithHttpInfo (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null)
+        public async System.Threading.Tasks.Task<ApiResponse<ApiResponse>> UploadFileWithRequiredFileAsyncWithHttpInfo (long petId, System.IO.Stream requiredFile, string additionalMetadata = default(string))
         {
             // verify the required parameter 'petId' is set
             if (petId == null)

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Api/StoreApi.cs

@@ -52,8 +52,8 @@ namespace Org.OpenAPITools.Api
         /// Returns a map of status codes to quantities
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>Dictionary&lt;string, int?&gt;</returns>
-        Dictionary<string, int?> GetInventory ();
+        /// <returns>Dictionary&lt;string, int&gt;</returns>
+        Dictionary<string, int> GetInventory ();
 
         /// <summary>
         /// Returns pet inventories by status
@@ -62,8 +62,8 @@ namespace Org.OpenAPITools.Api
         /// Returns a map of status codes to quantities
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>ApiResponse of Dictionary&lt;string, int?&gt;</returns>
-        ApiResponse<Dictionary<string, int?>> GetInventoryWithHttpInfo ();
+        /// <returns>ApiResponse of Dictionary&lt;string, int&gt;</returns>
+        ApiResponse<Dictionary<string, int>> GetInventoryWithHttpInfo ();
         /// <summary>
         /// Find purchase order by ID
         /// </summary>
@@ -73,7 +73,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>Order</returns>
-        Order GetOrderById (long? orderId);
+        Order GetOrderById (long orderId);
 
         /// <summary>
         /// Find purchase order by ID
@@ -84,7 +84,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>ApiResponse of Order</returns>
-        ApiResponse<Order> GetOrderByIdWithHttpInfo (long? orderId);
+        ApiResponse<Order> GetOrderByIdWithHttpInfo (long orderId);
         /// <summary>
         /// Place an order for a pet
         /// </summary>
@@ -136,8 +136,8 @@ namespace Org.OpenAPITools.Api
         /// Returns a map of status codes to quantities
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>Task of Dictionary&lt;string, int?&gt;</returns>
-        System.Threading.Tasks.Task<Dictionary<string, int?>> GetInventoryAsync ();
+        /// <returns>Task of Dictionary&lt;string, int&gt;</returns>
+        System.Threading.Tasks.Task<Dictionary<string, int>> GetInventoryAsync ();
 
         /// <summary>
         /// Returns pet inventories by status
@@ -146,8 +146,8 @@ namespace Org.OpenAPITools.Api
         /// Returns a map of status codes to quantities
         /// </remarks>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>Task of ApiResponse (Dictionary&lt;string, int?&gt;)</returns>
-        System.Threading.Tasks.Task<ApiResponse<Dictionary<string, int?>>> GetInventoryAsyncWithHttpInfo ();
+        /// <returns>Task of ApiResponse (Dictionary&lt;string, int&gt;)</returns>
+        System.Threading.Tasks.Task<ApiResponse<Dictionary<string, int>>> GetInventoryAsyncWithHttpInfo ();
         /// <summary>
         /// Find purchase order by ID
         /// </summary>
@@ -157,7 +157,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>Task of Order</returns>
-        System.Threading.Tasks.Task<Order> GetOrderByIdAsync (long? orderId);
+        System.Threading.Tasks.Task<Order> GetOrderByIdAsync (long orderId);
 
         /// <summary>
         /// Find purchase order by ID
@@ -168,7 +168,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>Task of ApiResponse (Order)</returns>
-        System.Threading.Tasks.Task<ApiResponse<Order>> GetOrderByIdAsyncWithHttpInfo (long? orderId);
+        System.Threading.Tasks.Task<ApiResponse<Order>> GetOrderByIdAsyncWithHttpInfo (long orderId);
         /// <summary>
         /// Place an order for a pet
         /// </summary>
@@ -434,10 +434,10 @@ namespace Org.OpenAPITools.Api
         /// Returns pet inventories by status Returns a map of status codes to quantities
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>Dictionary&lt;string, int?&gt;</returns>
-        public Dictionary<string, int?> GetInventory ()
+        /// <returns>Dictionary&lt;string, int&gt;</returns>
+        public Dictionary<string, int> GetInventory ()
         {
-             ApiResponse<Dictionary<string, int?>> localVarResponse = GetInventoryWithHttpInfo();
+             ApiResponse<Dictionary<string, int>> localVarResponse = GetInventoryWithHttpInfo();
              return localVarResponse.Data;
         }
 
@@ -445,8 +445,8 @@ namespace Org.OpenAPITools.Api
         /// Returns pet inventories by status Returns a map of status codes to quantities
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>ApiResponse of Dictionary&lt;string, int?&gt;</returns>
-        public ApiResponse< Dictionary<string, int?> > GetInventoryWithHttpInfo ()
+        /// <returns>ApiResponse of Dictionary&lt;string, int&gt;</returns>
+        public ApiResponse<Dictionary<string, int>> GetInventoryWithHttpInfo ()
         {
 
             var localVarPath = "/store/inventory";
@@ -490,19 +490,19 @@ namespace Org.OpenAPITools.Api
                 if (exception != null) throw exception;
             }
 
-            return new ApiResponse<Dictionary<string, int?>>(localVarStatusCode,
+            return new ApiResponse<Dictionary<string, int>>(localVarStatusCode,
                 localVarResponse.Headers.ToDictionary(x => x.Name, x => string.Join(",", x.Value)),
-                (Dictionary<string, int?>) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(Dictionary<string, int?>)));
+                (Dictionary<string, int>) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(Dictionary<string, int>)));
         }
 
         /// <summary>
         /// Returns pet inventories by status Returns a map of status codes to quantities
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>Task of Dictionary&lt;string, int?&gt;</returns>
-        public async System.Threading.Tasks.Task<Dictionary<string, int?>> GetInventoryAsync ()
+        /// <returns>Task of Dictionary&lt;string, int&gt;</returns>
+        public async System.Threading.Tasks.Task<Dictionary<string, int>> GetInventoryAsync ()
         {
-             ApiResponse<Dictionary<string, int?>> localVarResponse = await GetInventoryAsyncWithHttpInfo();
+             ApiResponse<Dictionary<string, int>> localVarResponse = await GetInventoryAsyncWithHttpInfo();
              return localVarResponse.Data;
 
         }
@@ -511,8 +511,8 @@ namespace Org.OpenAPITools.Api
         /// Returns pet inventories by status Returns a map of status codes to quantities
         /// </summary>
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
-        /// <returns>Task of ApiResponse (Dictionary&lt;string, int?&gt;)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Dictionary<string, int?>>> GetInventoryAsyncWithHttpInfo ()
+        /// <returns>Task of ApiResponse (Dictionary&lt;string, int&gt;)</returns>
+        public async System.Threading.Tasks.Task<ApiResponse<Dictionary<string, int>>> GetInventoryAsyncWithHttpInfo ()
         {
 
             var localVarPath = "/store/inventory";
@@ -556,9 +556,9 @@ namespace Org.OpenAPITools.Api
                 if (exception != null) throw exception;
             }
 
-            return new ApiResponse<Dictionary<string, int?>>(localVarStatusCode,
+            return new ApiResponse<Dictionary<string, int>>(localVarStatusCode,
                 localVarResponse.Headers.ToDictionary(x => x.Name, x => string.Join(",", x.Value)),
-                (Dictionary<string, int?>) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(Dictionary<string, int?>)));
+                (Dictionary<string, int>) this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(Dictionary<string, int>)));
         }
 
         /// <summary>
@@ -567,7 +567,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>Order</returns>
-        public Order GetOrderById (long? orderId)
+        public Order GetOrderById (long orderId)
         {
              ApiResponse<Order> localVarResponse = GetOrderByIdWithHttpInfo(orderId);
              return localVarResponse.Data;
@@ -579,7 +579,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>ApiResponse of Order</returns>
-        public ApiResponse< Order > GetOrderByIdWithHttpInfo (long? orderId)
+        public ApiResponse<Order> GetOrderByIdWithHttpInfo (long orderId)
         {
             // verify the required parameter 'orderId' is set
             if (orderId == null)
@@ -634,7 +634,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>Task of Order</returns>
-        public async System.Threading.Tasks.Task<Order> GetOrderByIdAsync (long? orderId)
+        public async System.Threading.Tasks.Task<Order> GetOrderByIdAsync (long orderId)
         {
              ApiResponse<Order> localVarResponse = await GetOrderByIdAsyncWithHttpInfo(orderId);
              return localVarResponse.Data;
@@ -647,7 +647,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="orderId">ID of pet that needs to be fetched</param>
         /// <returns>Task of ApiResponse (Order)</returns>
-        public async System.Threading.Tasks.Task<ApiResponse<Order>> GetOrderByIdAsyncWithHttpInfo (long? orderId)
+        public async System.Threading.Tasks.Task<ApiResponse<Order>> GetOrderByIdAsyncWithHttpInfo (long orderId)
         {
             // verify the required parameter 'orderId' is set
             if (orderId == null)
@@ -714,7 +714,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="body">order placed for purchasing the pet</param>
         /// <returns>ApiResponse of Order</returns>
-        public ApiResponse< Order > PlaceOrderWithHttpInfo (Order body)
+        public ApiResponse<Order> PlaceOrderWithHttpInfo (Order body)
         {
             // verify the required parameter 'body' is set
             if (body == null)

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Api/UserApi.cs

@@ -1053,7 +1053,7 @@ namespace Org.OpenAPITools.Api
         /// <exception cref="Org.OpenAPITools.Client.ApiException">Thrown when fails to make API call</exception>
         /// <param name="username">The name that needs to be fetched. Use user1 for testing.</param>
         /// <returns>ApiResponse of User</returns>
-        public ApiResponse< User > GetUserByNameWithHttpInfo (string username)
+        public ApiResponse<User> GetUserByNameWithHttpInfo (string username)
         {
             // verify the required parameter 'username' is set
             if (username == null)
@@ -1190,7 +1190,7 @@ namespace Org.OpenAPITools.Api
         /// <param name="username">The user name for login</param>
         /// <param name="password">The password for login in clear text</param>
         /// <returns>ApiResponse of string</returns>
-        public ApiResponse< string > LoginUserWithHttpInfo (string username, string password)
+        public ApiResponse<string> LoginUserWithHttpInfo (string username, string password)
         {
             // verify the required parameter 'username' is set
             if (username == null)

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesBoolean.cs

@@ -28,7 +28,7 @@ namespace Org.OpenAPITools.Model
     /// AdditionalPropertiesBoolean
     /// </summary>
     [DataContract]
-    public partial class AdditionalPropertiesBoolean : Dictionary<String, bool?>,  IEquatable<AdditionalPropertiesBoolean>, IValidatableObject
+    public partial class AdditionalPropertiesBoolean : Dictionary<String, bool>,  IEquatable<AdditionalPropertiesBoolean>, IValidatableObject
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="AdditionalPropertiesBoolean" /> class.

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesClass.cs

@@ -44,7 +44,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="anytype1">anytype1.</param>
         /// <param name="anytype2">anytype2.</param>
         /// <param name="anytype3">anytype3.</param>
-        public AdditionalPropertiesClass(Dictionary<string, string> mapString = default(Dictionary<string, string>), Dictionary<string, decimal?> mapNumber = default(Dictionary<string, decimal?>), Dictionary<string, int?> mapInteger = default(Dictionary<string, int?>), Dictionary<string, bool?> mapBoolean = default(Dictionary<string, bool?>), Dictionary<string, List<int?>> mapArrayInteger = default(Dictionary<string, List<int?>>), Dictionary<string, List<Object>> mapArrayAnytype = default(Dictionary<string, List<Object>>), Dictionary<string, Dictionary<string, string>> mapMapString = default(Dictionary<string, Dictionary<string, string>>), Dictionary<string, Dictionary<string, Object>> mapMapAnytype = default(Dictionary<string, Dictionary<string, Object>>), Object anytype1 = default(Object), Object anytype2 = default(Object), Object anytype3 = default(Object))
+        public AdditionalPropertiesClass(Dictionary<string, string> mapString = default(Dictionary<string, string>), Dictionary<string, decimal> mapNumber = default(Dictionary<string, decimal>), Dictionary<string, int> mapInteger = default(Dictionary<string, int>), Dictionary<string, bool> mapBoolean = default(Dictionary<string, bool>), Dictionary<string, List<int>> mapArrayInteger = default(Dictionary<string, List<int>>), Dictionary<string, List<Object>> mapArrayAnytype = default(Dictionary<string, List<Object>>), Dictionary<string, Dictionary<string, string>> mapMapString = default(Dictionary<string, Dictionary<string, string>>), Dictionary<string, Dictionary<string, Object>> mapMapAnytype = default(Dictionary<string, Dictionary<string, Object>>), Object anytype1 = default(Object), Object anytype2 = default(Object), Object anytype3 = default(Object))
         {
             this.MapString = mapString;
             this.MapNumber = mapNumber;
@@ -69,25 +69,25 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets MapNumber
         /// </summary>
         [DataMember(Name="map_number", EmitDefaultValue=false)]
-        public Dictionary<string, decimal?> MapNumber { get; set; }
+        public Dictionary<string, decimal> MapNumber { get; set; }
 
         /// <summary>
         /// Gets or Sets MapInteger
         /// </summary>
         [DataMember(Name="map_integer", EmitDefaultValue=false)]
-        public Dictionary<string, int?> MapInteger { get; set; }
+        public Dictionary<string, int> MapInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets MapBoolean
         /// </summary>
         [DataMember(Name="map_boolean", EmitDefaultValue=false)]
-        public Dictionary<string, bool?> MapBoolean { get; set; }
+        public Dictionary<string, bool> MapBoolean { get; set; }
 
         /// <summary>
         /// Gets or Sets MapArrayInteger
         /// </summary>
         [DataMember(Name="map_array_integer", EmitDefaultValue=false)]
-        public Dictionary<string, List<int?>> MapArrayInteger { get; set; }
+        public Dictionary<string, List<int>> MapArrayInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets MapArrayAnytype

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesInteger.cs

@@ -28,7 +28,7 @@ namespace Org.OpenAPITools.Model
     /// AdditionalPropertiesInteger
     /// </summary>
     [DataContract]
-    public partial class AdditionalPropertiesInteger : Dictionary<String, int?>,  IEquatable<AdditionalPropertiesInteger>, IValidatableObject
+    public partial class AdditionalPropertiesInteger : Dictionary<String, int>,  IEquatable<AdditionalPropertiesInteger>, IValidatableObject
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="AdditionalPropertiesInteger" /> class.

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/AdditionalPropertiesNumber.cs

@@ -28,7 +28,7 @@ namespace Org.OpenAPITools.Model
     /// AdditionalPropertiesNumber
     /// </summary>
     [DataContract]
-    public partial class AdditionalPropertiesNumber : Dictionary<String, decimal?>,  IEquatable<AdditionalPropertiesNumber>, IValidatableObject
+    public partial class AdditionalPropertiesNumber : Dictionary<String, decimal>,  IEquatable<AdditionalPropertiesNumber>, IValidatableObject
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="AdditionalPropertiesNumber" /> class.

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ApiResponse.cs

@@ -36,7 +36,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="code">code.</param>
         /// <param name="type">type.</param>
         /// <param name="message">message.</param>
-        public ApiResponse(int? code = default(int?), string type = default(string), string message = default(string))
+        public ApiResponse(int code = default(int), string type = default(string), string message = default(string))
         {
             this.Code = code;
             this.Type = type;
@@ -47,7 +47,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Code
         /// </summary>
         [DataMember(Name="code", EmitDefaultValue=false)]
-        public int? Code { get; set; }
+        public int Code { get; set; }
 
         /// <summary>
         /// Gets or Sets Type

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfArrayOfNumberOnly.cs

@@ -34,7 +34,7 @@ namespace Org.OpenAPITools.Model
         /// Initializes a new instance of the <see cref="ArrayOfArrayOfNumberOnly" /> class.
         /// </summary>
         /// <param name="arrayArrayNumber">arrayArrayNumber.</param>
-        public ArrayOfArrayOfNumberOnly(List<List<decimal?>> arrayArrayNumber = default(List<List<decimal?>>))
+        public ArrayOfArrayOfNumberOnly(List<List<decimal>> arrayArrayNumber = default(List<List<decimal>>))
         {
             this.ArrayArrayNumber = arrayArrayNumber;
         }
@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets ArrayArrayNumber
         /// </summary>
         [DataMember(Name="ArrayArrayNumber", EmitDefaultValue=false)]
-        public List<List<decimal?>> ArrayArrayNumber { get; set; }
+        public List<List<decimal>> ArrayArrayNumber { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayOfNumberOnly.cs

@@ -34,7 +34,7 @@ namespace Org.OpenAPITools.Model
         /// Initializes a new instance of the <see cref="ArrayOfNumberOnly" /> class.
         /// </summary>
         /// <param name="arrayNumber">arrayNumber.</param>
-        public ArrayOfNumberOnly(List<decimal?> arrayNumber = default(List<decimal?>))
+        public ArrayOfNumberOnly(List<decimal> arrayNumber = default(List<decimal>))
         {
             this.ArrayNumber = arrayNumber;
         }
@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets ArrayNumber
         /// </summary>
         [DataMember(Name="ArrayNumber", EmitDefaultValue=false)]
-        public List<decimal?> ArrayNumber { get; set; }
+        public List<decimal> ArrayNumber { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/ArrayTest.cs

@@ -36,7 +36,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="arrayOfString">arrayOfString.</param>
         /// <param name="arrayArrayOfInteger">arrayArrayOfInteger.</param>
         /// <param name="arrayArrayOfModel">arrayArrayOfModel.</param>
-        public ArrayTest(List<string> arrayOfString = default(List<string>), List<List<long?>> arrayArrayOfInteger = default(List<List<long?>>), List<List<ReadOnlyFirst>> arrayArrayOfModel = default(List<List<ReadOnlyFirst>>))
+        public ArrayTest(List<string> arrayOfString = default(List<string>), List<List<long>> arrayArrayOfInteger = default(List<List<long>>), List<List<ReadOnlyFirst>> arrayArrayOfModel = default(List<List<ReadOnlyFirst>>))
         {
             this.ArrayOfString = arrayOfString;
             this.ArrayArrayOfInteger = arrayArrayOfInteger;
@@ -53,7 +53,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets ArrayArrayOfInteger
         /// </summary>
         [DataMember(Name="array_array_of_integer", EmitDefaultValue=false)]
-        public List<List<long?>> ArrayArrayOfInteger { get; set; }
+        public List<List<long>> ArrayArrayOfInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets ArrayArrayOfModel

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Cat.cs

@@ -39,7 +39,7 @@ namespace Org.OpenAPITools.Model
         /// Initializes a new instance of the <see cref="Cat" /> class.
         /// </summary>
         /// <param name="declawed">declawed.</param>
-        public Cat(bool? declawed = default(bool?), string className = default(string), string color = "red") : base(className, color)
+        public Cat(bool declawed = default(bool), string className = default(string), string color = "red") : base(className, color)
         {
             this.Declawed = declawed;
         }
@@ -48,7 +48,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Declawed
         /// </summary>
         [DataMember(Name="declawed", EmitDefaultValue=false)]
-        public bool? Declawed { get; set; }
+        public bool Declawed { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/CatAllOf.cs

@@ -34,7 +34,7 @@ namespace Org.OpenAPITools.Model
         /// Initializes a new instance of the <see cref="CatAllOf" /> class.
         /// </summary>
         /// <param name="declawed">declawed.</param>
-        public CatAllOf(bool? declawed = default(bool?))
+        public CatAllOf(bool declawed = default(bool))
         {
             this.Declawed = declawed;
         }
@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Declawed
         /// </summary>
         [DataMember(Name="declawed", EmitDefaultValue=false)]
-        public bool? Declawed { get; set; }
+        public bool Declawed { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Category.cs

@@ -40,7 +40,7 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <param name="id">id.</param>
         /// <param name="name">name (required) (default to &quot;default-name&quot;).</param>
-        public Category(long? id = default(long?), string name = "default-name")
+        public Category(long id = default(long), string name = "default-name")
         {
             // to ensure "name" is required (not null)
             if (name == null)
@@ -59,7 +59,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Id
         /// </summary>
         [DataMember(Name="id", EmitDefaultValue=false)]
-        public long? Id { get; set; }
+        public long Id { get; set; }
 
         /// <summary>
         /// Gets or Sets Name

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs

@@ -51,7 +51,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="dateTime">dateTime.</param>
         /// <param name="uuid">uuid.</param>
         /// <param name="password">password (required).</param>
-        public FormatTest(int? integer = default(int?), int? int32 = default(int?), long? int64 = default(long?), decimal? number = default(decimal?), float? _float = default(float?), double? _double = default(double?), string _string = default(string), byte[] _byte = default(byte[]), System.IO.Stream binary = default(System.IO.Stream), DateTime? date = default(DateTime?), DateTime? dateTime = default(DateTime?), Guid? uuid = default(Guid?), string password = default(string))
+        public FormatTest(int integer = default(int), int int32 = default(int), long int64 = default(long), decimal number = default(decimal), float _float = default(float), double _double = default(double), string _string = default(string), byte[] _byte = default(byte[]), System.IO.Stream binary = default(System.IO.Stream), DateTime date = default(DateTime), DateTime dateTime = default(DateTime), Guid uuid = default(Guid), string password = default(string))
         {
             // to ensure "number" is required (not null)
             if (number == null)
@@ -108,37 +108,37 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Integer
         /// </summary>
         [DataMember(Name="integer", EmitDefaultValue=false)]
-        public int? Integer { get; set; }
+        public int Integer { get; set; }
 
         /// <summary>
         /// Gets or Sets Int32
         /// </summary>
         [DataMember(Name="int32", EmitDefaultValue=false)]
-        public int? Int32 { get; set; }
+        public int Int32 { get; set; }
 
         /// <summary>
         /// Gets or Sets Int64
         /// </summary>
         [DataMember(Name="int64", EmitDefaultValue=false)]
-        public long? Int64 { get; set; }
+        public long Int64 { get; set; }
 
         /// <summary>
         /// Gets or Sets Number
         /// </summary>
         [DataMember(Name="number", EmitDefaultValue=false)]
-        public decimal? Number { get; set; }
+        public decimal Number { get; set; }
 
         /// <summary>
         /// Gets or Sets Float
         /// </summary>
         [DataMember(Name="float", EmitDefaultValue=false)]
-        public float? Float { get; set; }
+        public float Float { get; set; }
 
         /// <summary>
         /// Gets or Sets Double
         /// </summary>
         [DataMember(Name="double", EmitDefaultValue=false)]
-        public double? Double { get; set; }
+        public double Double { get; set; }
 
         /// <summary>
         /// Gets or Sets String
@@ -163,19 +163,19 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         [DataMember(Name="date", EmitDefaultValue=false)]
         [JsonConverter(typeof(OpenAPIDateConverter))]
-        public DateTime? Date { get; set; }
+        public DateTime Date { get; set; }
 
         /// <summary>
         /// Gets or Sets DateTime
         /// </summary>
         [DataMember(Name="dateTime", EmitDefaultValue=false)]
-        public DateTime? DateTime { get; set; }
+        public DateTime DateTime { get; set; }
 
         /// <summary>
         /// Gets or Sets Uuid
         /// </summary>
         [DataMember(Name="uuid", EmitDefaultValue=false)]
-        public Guid? Uuid { get; set; }
+        public Guid Uuid { get; set; }
 
         /// <summary>
         /// Gets or Sets Password
@@ -351,62 +351,62 @@ namespace Org.OpenAPITools.Model
         /// <returns>Validation Result</returns>
         IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
         {
-            // Integer (int?) maximum
-            if(this.Integer > (int?)100)
+            // Integer (int) maximum
+            if(this.Integer > (int)100)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Integer, must be a value less than or equal to 100.", new [] { "Integer" });
             }
 
-            // Integer (int?) minimum
-            if(this.Integer < (int?)10)
+            // Integer (int) minimum
+            if(this.Integer < (int)10)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Integer, must be a value greater than or equal to 10.", new [] { "Integer" });
             }
 
-            // Int32 (int?) maximum
-            if(this.Int32 > (int?)200)
+            // Int32 (int) maximum
+            if(this.Int32 > (int)200)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Int32, must be a value less than or equal to 200.", new [] { "Int32" });
             }
 
-            // Int32 (int?) minimum
-            if(this.Int32 < (int?)20)
+            // Int32 (int) minimum
+            if(this.Int32 < (int)20)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Int32, must be a value greater than or equal to 20.", new [] { "Int32" });
             }
 
-            // Number (decimal?) maximum
-            if(this.Number > (decimal?)543.2)
+            // Number (decimal) maximum
+            if(this.Number > (decimal)543.2)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Number, must be a value less than or equal to 543.2.", new [] { "Number" });
             }
 
-            // Number (decimal?) minimum
-            if(this.Number < (decimal?)32.1)
+            // Number (decimal) minimum
+            if(this.Number < (decimal)32.1)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Number, must be a value greater than or equal to 32.1.", new [] { "Number" });
             }
 
-            // Float (float?) maximum
-            if(this.Float > (float?)987.6)
+            // Float (float) maximum
+            if(this.Float > (float)987.6)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Float, must be a value less than or equal to 987.6.", new [] { "Float" });
             }
 
-            // Float (float?) minimum
-            if(this.Float < (float?)54.3)
+            // Float (float) minimum
+            if(this.Float < (float)54.3)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Float, must be a value greater than or equal to 54.3.", new [] { "Float" });
             }
 
-            // Double (double?) maximum
-            if(this.Double > (double?)123.4)
+            // Double (double) maximum
+            if(this.Double > (double)123.4)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Double, must be a value less than or equal to 123.4.", new [] { "Double" });
             }
 
-            // Double (double?) minimum
-            if(this.Double < (double?)67.8)
+            // Double (double) minimum
+            if(this.Double < (double)67.8)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Double, must be a value greater than or equal to 67.8.", new [] { "Double" });
             }

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MapTest.cs

@@ -63,7 +63,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="mapOfEnumString">mapOfEnumString.</param>
         /// <param name="directMap">directMap.</param>
         /// <param name="indirectMap">indirectMap.</param>
-        public MapTest(Dictionary<string, Dictionary<string, string>> mapMapOfString = default(Dictionary<string, Dictionary<string, string>>), Dictionary<string, InnerEnum> mapOfEnumString = default(Dictionary<string, InnerEnum>), Dictionary<string, bool?> directMap = default(Dictionary<string, bool?>), Dictionary<string, bool?> indirectMap = default(Dictionary<string, bool?>))
+        public MapTest(Dictionary<string, Dictionary<string, string>> mapMapOfString = default(Dictionary<string, Dictionary<string, string>>), Dictionary<string, InnerEnum> mapOfEnumString = default(Dictionary<string, InnerEnum>), Dictionary<string, bool> directMap = default(Dictionary<string, bool>), Dictionary<string, bool> indirectMap = default(Dictionary<string, bool>))
         {
             this.MapMapOfString = mapMapOfString;
             this.MapOfEnumString = mapOfEnumString;
@@ -82,13 +82,13 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets DirectMap
         /// </summary>
         [DataMember(Name="direct_map", EmitDefaultValue=false)]
-        public Dictionary<string, bool?> DirectMap { get; set; }
+        public Dictionary<string, bool> DirectMap { get; set; }
 
         /// <summary>
         /// Gets or Sets IndirectMap
         /// </summary>
         [DataMember(Name="indirect_map", EmitDefaultValue=false)]
-        public Dictionary<string, bool?> IndirectMap { get; set; }
+        public Dictionary<string, bool> IndirectMap { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs

@@ -36,7 +36,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="uuid">uuid.</param>
         /// <param name="dateTime">dateTime.</param>
         /// <param name="map">map.</param>
-        public MixedPropertiesAndAdditionalPropertiesClass(Guid? uuid = default(Guid?), DateTime? dateTime = default(DateTime?), Dictionary<string, Animal> map = default(Dictionary<string, Animal>))
+        public MixedPropertiesAndAdditionalPropertiesClass(Guid uuid = default(Guid), DateTime dateTime = default(DateTime), Dictionary<string, Animal> map = default(Dictionary<string, Animal>))
         {
             this.Uuid = uuid;
             this.DateTime = dateTime;
@@ -47,13 +47,13 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Uuid
         /// </summary>
         [DataMember(Name="uuid", EmitDefaultValue=false)]
-        public Guid? Uuid { get; set; }
+        public Guid Uuid { get; set; }
 
         /// <summary>
         /// Gets or Sets DateTime
         /// </summary>
         [DataMember(Name="dateTime", EmitDefaultValue=false)]
-        public DateTime? DateTime { get; set; }
+        public DateTime DateTime { get; set; }
 
         /// <summary>
         /// Gets or Sets Map

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Model200Response.cs

@@ -35,7 +35,7 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <param name="name">name.</param>
         /// <param name="_class">_class.</param>
-        public Model200Response(int? name = default(int?), string _class = default(string))
+        public Model200Response(int name = default(int), string _class = default(string))
         {
             this.Name = name;
             this.Class = _class;
@@ -45,7 +45,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Name
         /// </summary>
         [DataMember(Name="name", EmitDefaultValue=false)]
-        public int? Name { get; set; }
+        public int Name { get; set; }
 
         /// <summary>
         /// Gets or Sets Class

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Name.cs

@@ -40,7 +40,7 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <param name="name">name (required).</param>
         /// <param name="property">property.</param>
-        public Name(int? name = default(int?), string property = default(string))
+        public Name(int name = default(int), string property = default(string))
         {
             // to ensure "name" is required (not null)
             if (name == null)
@@ -59,13 +59,13 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets _Name
         /// </summary>
         [DataMember(Name="name", EmitDefaultValue=false)]
-        public int? _Name { get; set; }
+        public int _Name { get; set; }
 
         /// <summary>
         /// Gets or Sets SnakeCase
         /// </summary>
         [DataMember(Name="snake_case", EmitDefaultValue=false)]
-        public int? SnakeCase { get; private set; }
+        public int SnakeCase { get; private set; }
 
         /// <summary>
         /// Gets or Sets Property
@@ -77,7 +77,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets _123Number
         /// </summary>
         [DataMember(Name="123Number", EmitDefaultValue=false)]
-        public int? _123Number { get; private set; }
+        public int _123Number { get; private set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/NumberOnly.cs

@@ -34,7 +34,7 @@ namespace Org.OpenAPITools.Model
         /// Initializes a new instance of the <see cref="NumberOnly" /> class.
         /// </summary>
         /// <param name="justNumber">justNumber.</param>
-        public NumberOnly(decimal? justNumber = default(decimal?))
+        public NumberOnly(decimal justNumber = default(decimal))
         {
             this.JustNumber = justNumber;
         }
@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets JustNumber
         /// </summary>
         [DataMember(Name="JustNumber", EmitDefaultValue=false)]
-        public decimal? JustNumber { get; set; }
+        public decimal JustNumber { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Order.cs

@@ -72,7 +72,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="shipDate">shipDate.</param>
         /// <param name="status">Order Status.</param>
         /// <param name="complete">complete (default to false).</param>
-        public Order(long? id = default(long?), long? petId = default(long?), int? quantity = default(int?), DateTime? shipDate = default(DateTime?), StatusEnum? status = default(StatusEnum?), bool? complete = false)
+        public Order(long id = default(long), long petId = default(long), int quantity = default(int), DateTime shipDate = default(DateTime), StatusEnum? status = default(StatusEnum?), bool complete = false)
         {
             this.Id = id;
             this.PetId = petId;
@@ -94,32 +94,32 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Id
         /// </summary>
         [DataMember(Name="id", EmitDefaultValue=false)]
-        public long? Id { get; set; }
+        public long Id { get; set; }
 
         /// <summary>
         /// Gets or Sets PetId
         /// </summary>
         [DataMember(Name="petId", EmitDefaultValue=false)]
-        public long? PetId { get; set; }
+        public long PetId { get; set; }
 
         /// <summary>
         /// Gets or Sets Quantity
         /// </summary>
         [DataMember(Name="quantity", EmitDefaultValue=false)]
-        public int? Quantity { get; set; }
+        public int Quantity { get; set; }
 
         /// <summary>
         /// Gets or Sets ShipDate
         /// </summary>
         [DataMember(Name="shipDate", EmitDefaultValue=false)]
-        public DateTime? ShipDate { get; set; }
+        public DateTime ShipDate { get; set; }
 
 
         /// <summary>
         /// Gets or Sets Complete
         /// </summary>
         [DataMember(Name="complete", EmitDefaultValue=false)]
-        public bool? Complete { get; set; }
+        public bool Complete { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/OuterComposite.cs

@@ -36,7 +36,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="myNumber">myNumber.</param>
         /// <param name="myString">myString.</param>
         /// <param name="myBoolean">myBoolean.</param>
-        public OuterComposite(decimal? myNumber = default(decimal?), string myString = default(string), bool? myBoolean = default(bool?))
+        public OuterComposite(decimal myNumber = default(decimal), string myString = default(string), bool myBoolean = default(bool))
         {
             this.MyNumber = myNumber;
             this.MyString = myString;
@@ -47,7 +47,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets MyNumber
         /// </summary>
         [DataMember(Name="my_number", EmitDefaultValue=false)]
-        public decimal? MyNumber { get; set; }
+        public decimal MyNumber { get; set; }
 
         /// <summary>
         /// Gets or Sets MyString
@@ -59,7 +59,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets MyBoolean
         /// </summary>
         [DataMember(Name="my_boolean", EmitDefaultValue=false)]
-        public bool? MyBoolean { get; set; }
+        public bool MyBoolean { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Pet.cs

@@ -77,7 +77,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="photoUrls">photoUrls (required).</param>
         /// <param name="tags">tags.</param>
         /// <param name="status">pet status in the store.</param>
-        public Pet(long? id = default(long?), Category category = default(Category), string name = default(string), List<string> photoUrls = default(List<string>), List<Tag> tags = default(List<Tag>), StatusEnum? status = default(StatusEnum?))
+        public Pet(long id = default(long), Category category = default(Category), string name = default(string), List<string> photoUrls = default(List<string>), List<Tag> tags = default(List<Tag>), StatusEnum? status = default(StatusEnum?))
         {
             // to ensure "name" is required (not null)
             if (name == null)
@@ -109,7 +109,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Id
         /// </summary>
         [DataMember(Name="id", EmitDefaultValue=false)]
-        public long? Id { get; set; }
+        public long Id { get; set; }
 
         /// <summary>
         /// Gets or Sets Category

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Return.cs

@@ -34,7 +34,7 @@ namespace Org.OpenAPITools.Model
         /// Initializes a new instance of the <see cref="Return" /> class.
         /// </summary>
         /// <param name="_return">_return.</param>
-        public Return(int? _return = default(int?))
+        public Return(int _return = default(int))
         {
             this._Return = _return;
         }
@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets _Return
         /// </summary>
         [DataMember(Name="return", EmitDefaultValue=false)]
-        public int? _Return { get; set; }
+        public int _Return { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/SpecialModelName.cs

@@ -34,7 +34,7 @@ namespace Org.OpenAPITools.Model
         /// Initializes a new instance of the <see cref="SpecialModelName" /> class.
         /// </summary>
         /// <param name="specialPropertyName">specialPropertyName.</param>
-        public SpecialModelName(long? specialPropertyName = default(long?))
+        public SpecialModelName(long specialPropertyName = default(long))
         {
             this.SpecialPropertyName = specialPropertyName;
         }
@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets SpecialPropertyName
         /// </summary>
         [DataMember(Name="$special[property.name]", EmitDefaultValue=false)]
-        public long? SpecialPropertyName { get; set; }
+        public long SpecialPropertyName { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/Tag.cs

@@ -35,7 +35,7 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <param name="id">id.</param>
         /// <param name="name">name.</param>
-        public Tag(long? id = default(long?), string name = default(string))
+        public Tag(long id = default(long), string name = default(string))
         {
             this.Id = id;
             this.Name = name;
@@ -45,7 +45,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Id
         /// </summary>
         [DataMember(Name="id", EmitDefaultValue=false)]
-        public long? Id { get; set; }
+        public long Id { get; set; }
 
         /// <summary>
         /// Gets or Sets Name

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/TypeHolderDefault.cs

@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="integerItem">integerItem (required).</param>
         /// <param name="boolItem">boolItem (required) (default to true).</param>
         /// <param name="arrayItem">arrayItem (required).</param>
-        public TypeHolderDefault(string stringItem = "what", decimal? numberItem = default(decimal?), int? integerItem = default(int?), bool? boolItem = true, List<int?> arrayItem = default(List<int?>))
+        public TypeHolderDefault(string stringItem = "what", decimal numberItem = default(decimal), int integerItem = default(int), bool boolItem = true, List<int> arrayItem = default(List<int>))
         {
             // to ensure "stringItem" is required (not null)
             if (stringItem == null)
@@ -107,25 +107,25 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets NumberItem
         /// </summary>
         [DataMember(Name="number_item", EmitDefaultValue=false)]
-        public decimal? NumberItem { get; set; }
+        public decimal NumberItem { get; set; }
 
         /// <summary>
         /// Gets or Sets IntegerItem
         /// </summary>
         [DataMember(Name="integer_item", EmitDefaultValue=false)]
-        public int? IntegerItem { get; set; }
+        public int IntegerItem { get; set; }
 
         /// <summary>
         /// Gets or Sets BoolItem
         /// </summary>
         [DataMember(Name="bool_item", EmitDefaultValue=false)]
-        public bool? BoolItem { get; set; }
+        public bool BoolItem { get; set; }
 
         /// <summary>
         /// Gets or Sets ArrayItem
         /// </summary>
         [DataMember(Name="array_item", EmitDefaultValue=false)]
-        public List<int?> ArrayItem { get; set; }
+        public List<int> ArrayItem { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/TypeHolderExample.cs

@@ -43,7 +43,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="integerItem">integerItem (required).</param>
         /// <param name="boolItem">boolItem (required).</param>
         /// <param name="arrayItem">arrayItem (required).</param>
-        public TypeHolderExample(string stringItem = default(string), decimal? numberItem = default(decimal?), int? integerItem = default(int?), bool? boolItem = default(bool?), List<int?> arrayItem = default(List<int?>))
+        public TypeHolderExample(string stringItem = default(string), decimal numberItem = default(decimal), int integerItem = default(int), bool boolItem = default(bool), List<int> arrayItem = default(List<int>))
         {
             // to ensure "stringItem" is required (not null)
             if (stringItem == null)
@@ -107,25 +107,25 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets NumberItem
         /// </summary>
         [DataMember(Name="number_item", EmitDefaultValue=false)]
-        public decimal? NumberItem { get; set; }
+        public decimal NumberItem { get; set; }
 
         /// <summary>
         /// Gets or Sets IntegerItem
         /// </summary>
         [DataMember(Name="integer_item", EmitDefaultValue=false)]
-        public int? IntegerItem { get; set; }
+        public int IntegerItem { get; set; }
 
         /// <summary>
         /// Gets or Sets BoolItem
         /// </summary>
         [DataMember(Name="bool_item", EmitDefaultValue=false)]
-        public bool? BoolItem { get; set; }
+        public bool BoolItem { get; set; }
 
         /// <summary>
         /// Gets or Sets ArrayItem
         /// </summary>
         [DataMember(Name="array_item", EmitDefaultValue=false)]
-        public List<int?> ArrayItem { get; set; }
+        public List<int> ArrayItem { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/User.cs

@@ -41,7 +41,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="password">password.</param>
         /// <param name="phone">phone.</param>
         /// <param name="userStatus">User Status.</param>
-        public User(long? id = default(long?), string username = default(string), string firstName = default(string), string lastName = default(string), string email = default(string), string password = default(string), string phone = default(string), int? userStatus = default(int?))
+        public User(long id = default(long), string username = default(string), string firstName = default(string), string lastName = default(string), string email = default(string), string password = default(string), string phone = default(string), int userStatus = default(int))
         {
             this.Id = id;
             this.Username = username;
@@ -57,7 +57,7 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets Id
         /// </summary>
         [DataMember(Name="id", EmitDefaultValue=false)]
-        public long? Id { get; set; }
+        public long Id { get; set; }
 
         /// <summary>
         /// Gets or Sets Username
@@ -100,7 +100,7 @@ namespace Org.OpenAPITools.Model
         /// </summary>
         /// <value>User Status</value>
         [DataMember(Name="userStatus", EmitDefaultValue=false)]
-        public int? UserStatus { get; set; }
+        public int UserStatus { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/XmlItem.cs

@@ -62,7 +62,7 @@ namespace Org.OpenAPITools.Model
         /// <param name="prefixNsBoolean">prefixNsBoolean.</param>
         /// <param name="prefixNsArray">prefixNsArray.</param>
         /// <param name="prefixNsWrappedArray">prefixNsWrappedArray.</param>
-        public XmlItem(string attributeString = default(string), decimal? attributeNumber = default(decimal?), int? attributeInteger = default(int?), bool? attributeBoolean = default(bool?), List<int?> wrappedArray = default(List<int?>), string nameString = default(string), decimal? nameNumber = default(decimal?), int? nameInteger = default(int?), bool? nameBoolean = default(bool?), List<int?> nameArray = default(List<int?>), List<int?> nameWrappedArray = default(List<int?>), string prefixString = default(string), decimal? prefixNumber = default(decimal?), int? prefixInteger = default(int?), bool? prefixBoolean = default(bool?), List<int?> prefixArray = default(List<int?>), List<int?> prefixWrappedArray = default(List<int?>), string namespaceString = default(string), decimal? namespaceNumber = default(decimal?), int? namespaceInteger = default(int?), bool? namespaceBoolean = default(bool?), List<int?> namespaceArray = default(List<int?>), List<int?> namespaceWrappedArray = default(List<int?>), string prefixNsString = default(string), decimal? prefixNsNumber = default(decimal?), int? prefixNsInteger = default(int?), bool? prefixNsBoolean = default(bool?), List<int?> prefixNsArray = default(List<int?>), List<int?> prefixNsWrappedArray = default(List<int?>))
+        public XmlItem(string attributeString = default(string), decimal attributeNumber = default(decimal), int attributeInteger = default(int), bool attributeBoolean = default(bool), List<int> wrappedArray = default(List<int>), string nameString = default(string), decimal nameNumber = default(decimal), int nameInteger = default(int), bool nameBoolean = default(bool), List<int> nameArray = default(List<int>), List<int> nameWrappedArray = default(List<int>), string prefixString = default(string), decimal prefixNumber = default(decimal), int prefixInteger = default(int), bool prefixBoolean = default(bool), List<int> prefixArray = default(List<int>), List<int> prefixWrappedArray = default(List<int>), string namespaceString = default(string), decimal namespaceNumber = default(decimal), int namespaceInteger = default(int), bool namespaceBoolean = default(bool), List<int> namespaceArray = default(List<int>), List<int> namespaceWrappedArray = default(List<int>), string prefixNsString = default(string), decimal prefixNsNumber = default(decimal), int prefixNsInteger = default(int), bool prefixNsBoolean = default(bool), List<int> prefixNsArray = default(List<int>), List<int> prefixNsWrappedArray = default(List<int>))
         {
             this.AttributeString = attributeString;
             this.AttributeNumber = attributeNumber;
@@ -105,25 +105,25 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets AttributeNumber
         /// </summary>
         [DataMember(Name="attribute_number", EmitDefaultValue=false)]
-        public decimal? AttributeNumber { get; set; }
+        public decimal AttributeNumber { get; set; }
 
         /// <summary>
         /// Gets or Sets AttributeInteger
         /// </summary>
         [DataMember(Name="attribute_integer", EmitDefaultValue=false)]
-        public int? AttributeInteger { get; set; }
+        public int AttributeInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets AttributeBoolean
         /// </summary>
         [DataMember(Name="attribute_boolean", EmitDefaultValue=false)]
-        public bool? AttributeBoolean { get; set; }
+        public bool AttributeBoolean { get; set; }
 
         /// <summary>
         /// Gets or Sets WrappedArray
         /// </summary>
         [DataMember(Name="wrapped_array", EmitDefaultValue=false)]
-        public List<int?> WrappedArray { get; set; }
+        public List<int> WrappedArray { get; set; }
 
         /// <summary>
         /// Gets or Sets NameString
@@ -135,31 +135,31 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets NameNumber
         /// </summary>
         [DataMember(Name="name_number", EmitDefaultValue=false)]
-        public decimal? NameNumber { get; set; }
+        public decimal NameNumber { get; set; }
 
         /// <summary>
         /// Gets or Sets NameInteger
         /// </summary>
         [DataMember(Name="name_integer", EmitDefaultValue=false)]
-        public int? NameInteger { get; set; }
+        public int NameInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets NameBoolean
         /// </summary>
         [DataMember(Name="name_boolean", EmitDefaultValue=false)]
-        public bool? NameBoolean { get; set; }
+        public bool NameBoolean { get; set; }
 
         /// <summary>
         /// Gets or Sets NameArray
         /// </summary>
         [DataMember(Name="name_array", EmitDefaultValue=false)]
-        public List<int?> NameArray { get; set; }
+        public List<int> NameArray { get; set; }
 
         /// <summary>
         /// Gets or Sets NameWrappedArray
         /// </summary>
         [DataMember(Name="name_wrapped_array", EmitDefaultValue=false)]
-        public List<int?> NameWrappedArray { get; set; }
+        public List<int> NameWrappedArray { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixString
@@ -171,31 +171,31 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets PrefixNumber
         /// </summary>
         [DataMember(Name="prefix_number", EmitDefaultValue=false)]
-        public decimal? PrefixNumber { get; set; }
+        public decimal PrefixNumber { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixInteger
         /// </summary>
         [DataMember(Name="prefix_integer", EmitDefaultValue=false)]
-        public int? PrefixInteger { get; set; }
+        public int PrefixInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixBoolean
         /// </summary>
         [DataMember(Name="prefix_boolean", EmitDefaultValue=false)]
-        public bool? PrefixBoolean { get; set; }
+        public bool PrefixBoolean { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixArray
         /// </summary>
         [DataMember(Name="prefix_array", EmitDefaultValue=false)]
-        public List<int?> PrefixArray { get; set; }
+        public List<int> PrefixArray { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixWrappedArray
         /// </summary>
         [DataMember(Name="prefix_wrapped_array", EmitDefaultValue=false)]
-        public List<int?> PrefixWrappedArray { get; set; }
+        public List<int> PrefixWrappedArray { get; set; }
 
         /// <summary>
         /// Gets or Sets NamespaceString
@@ -207,31 +207,31 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets NamespaceNumber
         /// </summary>
         [DataMember(Name="namespace_number", EmitDefaultValue=false)]
-        public decimal? NamespaceNumber { get; set; }
+        public decimal NamespaceNumber { get; set; }
 
         /// <summary>
         /// Gets or Sets NamespaceInteger
         /// </summary>
         [DataMember(Name="namespace_integer", EmitDefaultValue=false)]
-        public int? NamespaceInteger { get; set; }
+        public int NamespaceInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets NamespaceBoolean
         /// </summary>
         [DataMember(Name="namespace_boolean", EmitDefaultValue=false)]
-        public bool? NamespaceBoolean { get; set; }
+        public bool NamespaceBoolean { get; set; }
 
         /// <summary>
         /// Gets or Sets NamespaceArray
         /// </summary>
         [DataMember(Name="namespace_array", EmitDefaultValue=false)]
-        public List<int?> NamespaceArray { get; set; }
+        public List<int> NamespaceArray { get; set; }
 
         /// <summary>
         /// Gets or Sets NamespaceWrappedArray
         /// </summary>
         [DataMember(Name="namespace_wrapped_array", EmitDefaultValue=false)]
-        public List<int?> NamespaceWrappedArray { get; set; }
+        public List<int> NamespaceWrappedArray { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixNsString
@@ -243,31 +243,31 @@ namespace Org.OpenAPITools.Model
         /// Gets or Sets PrefixNsNumber
         /// </summary>
         [DataMember(Name="prefix_ns_number", EmitDefaultValue=false)]
-        public decimal? PrefixNsNumber { get; set; }
+        public decimal PrefixNsNumber { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixNsInteger
         /// </summary>
         [DataMember(Name="prefix_ns_integer", EmitDefaultValue=false)]
-        public int? PrefixNsInteger { get; set; }
+        public int PrefixNsInteger { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixNsBoolean
         /// </summary>
         [DataMember(Name="prefix_ns_boolean", EmitDefaultValue=false)]
-        public bool? PrefixNsBoolean { get; set; }
+        public bool PrefixNsBoolean { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixNsArray
         /// </summary>
         [DataMember(Name="prefix_ns_array", EmitDefaultValue=false)]
-        public List<int?> PrefixNsArray { get; set; }
+        public List<int> PrefixNsArray { get; set; }
 
         /// <summary>
         /// Gets or Sets PrefixNsWrappedArray
         /// </summary>
         [DataMember(Name="prefix_ns_wrapped_array", EmitDefaultValue=false)]
-        public List<int?> PrefixNsWrappedArray { get; set; }
+        public List<int> PrefixNsWrappedArray { get; set; }
 
         /// <summary>
         /// Returns the string presentation of the object

samples/client/petstore/csharp/OpenAPIClientNet35/.openapi-generator/VERSION

@@ -1 +1 @@
-4.0.1-SNAPSHOT
+4.1.0-SNAPSHOT

samples/client/petstore/csharp/OpenAPIClientNet35/README.md

@@ -64,7 +64,7 @@ Then, publish to a [local feed](https://docs.microsoft.com/en-us/nuget/hosting-p
 ## Getting Started
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -74,10 +74,11 @@ namespace Example
 {
     public class Example
     {
-        public void main()
+        public static void Main()
         {
 
-            var apiInstance = new AnotherFakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new AnotherFakeApi(Configuration.Default);
             var body = new ModelClient(); // ModelClient | client model
 
             try
@@ -86,9 +87,11 @@ namespace Example
                 ModelClient result = apiInstance.Call123TestSpecialTags(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling AnotherFakeApi.Call123TestSpecialTags: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
 
         }

samples/client/petstore/csharp/OpenAPIClientNet35/docs/AdditionalPropertiesClass.md

@@ -6,10 +6,10 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **MapString** | **Dictionary<string, string>** |  | [optional] 
-**MapNumber** | **Dictionary<string, decimal?>** |  | [optional] 
-**MapInteger** | **Dictionary<string, int?>** |  | [optional] 
-**MapBoolean** | **Dictionary<string, bool?>** |  | [optional] 
-**MapArrayInteger** | **Dictionary<string, List<int?>>** |  | [optional] 
+**MapNumber** | **Dictionary<string, decimal>** |  | [optional] 
+**MapInteger** | **Dictionary<string, int>** |  | [optional] 
+**MapBoolean** | **Dictionary<string, bool>** |  | [optional] 
+**MapArrayInteger** | **Dictionary<string, List<int>>** |  | [optional] 
 **MapArrayAnytype** | **Dictionary<string, List<Object>>** |  | [optional] 
 **MapMapString** | **Dictionary<string, Dictionary<string, string>>** |  | [optional] 
 **MapMapAnytype** | **Dictionary<string, Dictionary<string, Object>>** |  | [optional] 

samples/client/petstore/csharp/OpenAPIClientNet35/docs/AnotherFakeApi.md

@@ -19,7 +19,7 @@ To test special tags and operation ID starting with number
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -29,9 +29,10 @@ namespace Example
 {
     public class Call123TestSpecialTagsExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new AnotherFakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new AnotherFakeApi(Configuration.Default);
             var body = new ModelClient(); // ModelClient | client model
 
             try
@@ -40,9 +41,11 @@ namespace Example
                 ModelClient result = apiInstance.Call123TestSpecialTags(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling AnotherFakeApi.Call123TestSpecialTags: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -69,6 +72,11 @@ No authorization required
 - **Content-Type**: application/json
 - **Accept**: application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/ApiResponse.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Code** | **int?** |  | [optional] 
+**Code** | **int** |  | [optional] 
 **Type** | **string** |  | [optional] 
 **Message** | **string** |  | [optional] 
 

samples/client/petstore/csharp/OpenAPIClientNet35/docs/ArrayOfArrayOfNumberOnly.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**ArrayArrayNumber** | **List<List<decimal?>>** |  | [optional] 
+**ArrayArrayNumber** | **List<List<decimal>>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/ArrayOfNumberOnly.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**ArrayNumber** | **List<decimal?>** |  | [optional] 
+**ArrayNumber** | **List<decimal>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/ArrayTest.md

@@ -6,7 +6,7 @@
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **ArrayOfString** | **List<string>** |  | [optional] 
-**ArrayArrayOfInteger** | **List<List<long?>>** |  | [optional] 
+**ArrayArrayOfInteger** | **List<List<long>>** |  | [optional] 
 **ArrayArrayOfModel** | **List<List<ReadOnlyFirst>>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Cat.md

@@ -7,7 +7,7 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **ClassName** | **string** |  | 
 **Color** | **string** |  | [optional] [default to "red"]
-**Declawed** | **bool?** |  | [optional] 
+**Declawed** | **bool** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/CatAllOf.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Declawed** | **bool?** |  | [optional] 
+**Declawed** | **bool** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Category.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
+**Id** | **long** |  | [optional] 
 **Name** | **string** |  | [default to "default-name"]
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/EnumTest.md

@@ -7,8 +7,8 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **EnumString** | **string** |  | [optional] 
 **EnumStringRequired** | **string** |  | 
-**EnumInteger** | **int?** |  | [optional] 
-**EnumNumber** | **double?** |  | [optional] 
+**EnumInteger** | **int** |  | [optional] 
+**EnumNumber** | **double** |  | [optional] 
 **OuterEnum** | **OuterEnum** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/FakeApi.md

@@ -31,7 +31,7 @@ this route creates an XmlItem
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -41,9 +41,10 @@ namespace Example
 {
     public class CreateXmlItemExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var xmlItem = new XmlItem(); // XmlItem | XmlItem Body
 
             try
@@ -51,9 +52,11 @@ namespace Example
                 // creates an XmlItem
                 apiInstance.CreateXmlItem(xmlItem);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.CreateXmlItem: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -80,6 +83,11 @@ No authorization required
 - **Content-Type**: application/xml, application/xml; charset=utf-8, application/xml; charset=utf-16, text/xml, text/xml; charset=utf-8, text/xml; charset=utf-16
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -88,7 +96,7 @@ No authorization required
 
 ## FakeOuterBooleanSerialize
 
-> bool? FakeOuterBooleanSerialize (bool? body = null)
+> bool FakeOuterBooleanSerialize (bool body = null)
 
 
 
@@ -97,7 +105,7 @@ Test serialization of outer boolean types
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -107,19 +115,22 @@ namespace Example
 {
     public class FakeOuterBooleanSerializeExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
-            var body = true;  // bool? | Input boolean as post body (optional) 
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
+            var body = true;  // bool | Input boolean as post body (optional) 
 
             try
             {
-                bool? result = apiInstance.FakeOuterBooleanSerialize(body);
+                bool result = apiInstance.FakeOuterBooleanSerialize(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.FakeOuterBooleanSerialize: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -131,11 +142,11 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | **bool?**| Input boolean as post body | [optional] 
+ **body** | **bool**| Input boolean as post body | [optional] 
 
 ### Return type
 
-**bool?**
+**bool**
 
 ### Authorization
 
@@ -146,6 +157,11 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: */*
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output boolean |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -163,7 +179,7 @@ Test serialization of object with outer number type
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -173,9 +189,10 @@ namespace Example
 {
     public class FakeOuterCompositeSerializeExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var body = new OuterComposite(); // OuterComposite | Input composite as post body (optional) 
 
             try
@@ -183,9 +200,11 @@ namespace Example
                 OuterComposite result = apiInstance.FakeOuterCompositeSerialize(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.FakeOuterCompositeSerialize: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -212,6 +231,11 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: */*
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output composite |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -220,7 +244,7 @@ No authorization required
 
 ## FakeOuterNumberSerialize
 
-> decimal? FakeOuterNumberSerialize (decimal? body = null)
+> decimal FakeOuterNumberSerialize (decimal body = null)
 
 
 
@@ -229,7 +253,7 @@ Test serialization of outer number types
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -239,19 +263,22 @@ namespace Example
 {
     public class FakeOuterNumberSerializeExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
-            var body = 8.14;  // decimal? | Input number as post body (optional) 
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
+            var body = 8.14;  // decimal | Input number as post body (optional) 
 
             try
             {
-                decimal? result = apiInstance.FakeOuterNumberSerialize(body);
+                decimal result = apiInstance.FakeOuterNumberSerialize(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.FakeOuterNumberSerialize: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -263,11 +290,11 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | **decimal?**| Input number as post body | [optional] 
+ **body** | **decimal**| Input number as post body | [optional] 
 
 ### Return type
 
-**decimal?**
+**decimal**
 
 ### Authorization
 
@@ -278,6 +305,11 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: */*
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output number |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -295,7 +327,7 @@ Test serialization of outer string types
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -305,9 +337,10 @@ namespace Example
 {
     public class FakeOuterStringSerializeExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var body = body_example;  // string | Input string as post body (optional) 
 
             try
@@ -315,9 +348,11 @@ namespace Example
                 string result = apiInstance.FakeOuterStringSerialize(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.FakeOuterStringSerialize: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -344,6 +379,11 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: */*
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Output string |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -361,7 +401,7 @@ For this test, the body for this request much reference a schema named `File`.
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -371,18 +411,21 @@ namespace Example
 {
     public class TestBodyWithFileSchemaExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var body = new FileSchemaTestClass(); // FileSchemaTestClass | 
 
             try
             {
                 apiInstance.TestBodyWithFileSchema(body);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestBodyWithFileSchema: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -409,6 +452,11 @@ No authorization required
 - **Content-Type**: application/json
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Success |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -424,7 +472,7 @@ No authorization required
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -434,9 +482,10 @@ namespace Example
 {
     public class TestBodyWithQueryParamsExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var query = query_example;  // string | 
             var body = new User(); // User | 
 
@@ -444,9 +493,11 @@ namespace Example
             {
                 apiInstance.TestBodyWithQueryParams(query, body);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestBodyWithQueryParams: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -474,6 +525,11 @@ No authorization required
 - **Content-Type**: application/json
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | Success |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -491,7 +547,7 @@ To test \"client\" model
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -501,9 +557,10 @@ namespace Example
 {
     public class TestClientModelExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var body = new ModelClient(); // ModelClient | client model
 
             try
@@ -512,9 +569,11 @@ namespace Example
                 ModelClient result = apiInstance.TestClientModel(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestClientModel: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -541,6 +600,11 @@ No authorization required
 - **Content-Type**: application/json
 - **Accept**: application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -549,7 +613,7 @@ No authorization required
 
 ## TestEndpointParameters
 
-> void TestEndpointParameters (decimal? number, double? _double, string patternWithoutDelimiter, byte[] _byte, int? integer = null, int? int32 = null, long? int64 = null, float? _float = null, string _string = null, System.IO.Stream binary = null, DateTime? date = null, DateTime? dateTime = null, string password = null, string callback = null)
+> void TestEndpointParameters (decimal number, double _double, string patternWithoutDelimiter, byte[] _byte, int integer = null, int int32 = null, long int64 = null, float _float = null, string _string = null, System.IO.Stream binary = null, DateTime date = null, DateTime dateTime = null, string password = null, string callback = null)
 
 Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 
@@ -558,7 +622,7 @@ Fake endpoint for testing various parameters 假端點 偽のエンドポイン
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -568,25 +632,26 @@ namespace Example
 {
     public class TestEndpointParametersExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure HTTP basic authorization: http_basic_test
             Configuration.Default.Username = "YOUR_USERNAME";
             Configuration.Default.Password = "YOUR_PASSWORD";
 
-            var apiInstance = new FakeApi();
-            var number = 8.14;  // decimal? | None
-            var _double = 1.2D;  // double? | None
+            var apiInstance = new FakeApi(Configuration.Default);
+            var number = 8.14;  // decimal | None
+            var _double = 1.2D;  // double | None
             var patternWithoutDelimiter = patternWithoutDelimiter_example;  // string | None
             var _byte = BYTE_ARRAY_DATA_HERE;  // byte[] | None
-            var integer = 56;  // int? | None (optional) 
-            var int32 = 56;  // int? | None (optional) 
-            var int64 = 789;  // long? | None (optional) 
-            var _float = 3.4F;  // float? | None (optional) 
+            var integer = 56;  // int | None (optional) 
+            var int32 = 56;  // int | None (optional) 
+            var int64 = 789;  // long | None (optional) 
+            var _float = 3.4F;  // float | None (optional) 
             var _string = _string_example;  // string | None (optional) 
             var binary = BINARY_DATA_HERE;  // System.IO.Stream | None (optional) 
-            var date = 2013-10-20;  // DateTime? | None (optional) 
-            var dateTime = 2013-10-20T19:20:30+01:00;  // DateTime? | None (optional) 
+            var date = 2013-10-20;  // DateTime | None (optional) 
+            var dateTime = 2013-10-20T19:20:30+01:00;  // DateTime | None (optional) 
             var password = password_example;  // string | None (optional) 
             var callback = callback_example;  // string | None (optional) 
 
@@ -595,9 +660,11 @@ namespace Example
                 // Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
                 apiInstance.TestEndpointParameters(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, _string, binary, date, dateTime, password, callback);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestEndpointParameters: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -609,18 +676,18 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **number** | **decimal?**| None | 
- **_double** | **double?**| None | 
+ **number** | **decimal**| None | 
+ **_double** | **double**| None | 
  **patternWithoutDelimiter** | **string**| None | 
  **_byte** | **byte[]**| None | 
- **integer** | **int?**| None | [optional] 
- **int32** | **int?**| None | [optional] 
- **int64** | **long?**| None | [optional] 
- **_float** | **float?**| None | [optional] 
+ **integer** | **int**| None | [optional] 
+ **int32** | **int**| None | [optional] 
+ **int64** | **long**| None | [optional] 
+ **_float** | **float**| None | [optional] 
  **_string** | **string**| None | [optional] 
  **binary** | **System.IO.Stream**| None | [optional] 
- **date** | **DateTime?**| None | [optional] 
- **dateTime** | **DateTime?**| None | [optional] 
+ **date** | **DateTime**| None | [optional] 
+ **dateTime** | **DateTime**| None | [optional] 
  **password** | **string**| None | [optional] 
  **callback** | **string**| None | [optional] 
 
@@ -637,6 +704,12 @@ void (empty response body)
 - **Content-Type**: application/x-www-form-urlencoded
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid username supplied |  -  |
+| **404** | User not found |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -645,7 +718,7 @@ void (empty response body)
 
 ## TestEnumParameters
 
-> void TestEnumParameters (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int? enumQueryInteger = null, double? enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
+> void TestEnumParameters (List<string> enumHeaderStringArray = null, string enumHeaderString = null, List<string> enumQueryStringArray = null, string enumQueryString = null, int enumQueryInteger = null, double enumQueryDouble = null, List<string> enumFormStringArray = null, string enumFormString = null)
 
 To test enum parameters
 
@@ -654,7 +727,7 @@ To test enum parameters
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -664,15 +737,16 @@ namespace Example
 {
     public class TestEnumParametersExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var enumHeaderStringArray = enumHeaderStringArray_example;  // List<string> | Header parameter enum test (string array) (optional) 
             var enumHeaderString = enumHeaderString_example;  // string | Header parameter enum test (string) (optional)  (default to -efg)
             var enumQueryStringArray = enumQueryStringArray_example;  // List<string> | Query parameter enum test (string array) (optional) 
             var enumQueryString = enumQueryString_example;  // string | Query parameter enum test (string) (optional)  (default to -efg)
-            var enumQueryInteger = 56;  // int? | Query parameter enum test (double) (optional) 
-            var enumQueryDouble = 1.2D;  // double? | Query parameter enum test (double) (optional) 
+            var enumQueryInteger = 56;  // int | Query parameter enum test (double) (optional) 
+            var enumQueryDouble = 1.2D;  // double | Query parameter enum test (double) (optional) 
             var enumFormStringArray = new List<string>(); // List<string> | Form parameter enum test (string array) (optional)  (default to $)
             var enumFormString = enumFormString_example;  // string | Form parameter enum test (string) (optional)  (default to -efg)
 
@@ -681,9 +755,11 @@ namespace Example
                 // To test enum parameters
                 apiInstance.TestEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestEnumParameters: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -699,8 +775,8 @@ Name | Type | Description  | Notes
  **enumHeaderString** | **string**| Header parameter enum test (string) | [optional] [default to -efg]
  **enumQueryStringArray** | **List&lt;string&gt;**| Query parameter enum test (string array) | [optional] 
  **enumQueryString** | **string**| Query parameter enum test (string) | [optional] [default to -efg]
- **enumQueryInteger** | **int?**| Query parameter enum test (double) | [optional] 
- **enumQueryDouble** | **double?**| Query parameter enum test (double) | [optional] 
+ **enumQueryInteger** | **int**| Query parameter enum test (double) | [optional] 
+ **enumQueryDouble** | **double**| Query parameter enum test (double) | [optional] 
  **enumFormStringArray** | [**List&lt;string&gt;**](string.md)| Form parameter enum test (string array) | [optional] [default to $]
  **enumFormString** | **string**| Form parameter enum test (string) | [optional] [default to -efg]
 
@@ -717,6 +793,12 @@ No authorization required
 - **Content-Type**: application/x-www-form-urlencoded
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid request |  -  |
+| **404** | Not found |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -725,7 +807,7 @@ No authorization required
 
 ## TestGroupParameters
 
-> void TestGroupParameters (int? requiredStringGroup, bool? requiredBooleanGroup, long? requiredInt64Group, int? stringGroup = null, bool? booleanGroup = null, long? int64Group = null)
+> void TestGroupParameters (int requiredStringGroup, bool requiredBooleanGroup, long requiredInt64Group, int stringGroup = null, bool booleanGroup = null, long int64Group = null)
 
 Fake endpoint to test group parameters (optional)
 
@@ -734,7 +816,7 @@ Fake endpoint to test group parameters (optional)
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -744,24 +826,27 @@ namespace Example
 {
     public class TestGroupParametersExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
-            var requiredStringGroup = 56;  // int? | Required String in group parameters
-            var requiredBooleanGroup = true;  // bool? | Required Boolean in group parameters
-            var requiredInt64Group = 789;  // long? | Required Integer in group parameters
-            var stringGroup = 56;  // int? | String in group parameters (optional) 
-            var booleanGroup = true;  // bool? | Boolean in group parameters (optional) 
-            var int64Group = 789;  // long? | Integer in group parameters (optional) 
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
+            var requiredStringGroup = 56;  // int | Required String in group parameters
+            var requiredBooleanGroup = true;  // bool | Required Boolean in group parameters
+            var requiredInt64Group = 789;  // long | Required Integer in group parameters
+            var stringGroup = 56;  // int | String in group parameters (optional) 
+            var booleanGroup = true;  // bool | Boolean in group parameters (optional) 
+            var int64Group = 789;  // long | Integer in group parameters (optional) 
 
             try
             {
                 // Fake endpoint to test group parameters (optional)
                 apiInstance.TestGroupParameters(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestGroupParameters: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -773,12 +858,12 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **requiredStringGroup** | **int?**| Required String in group parameters | 
- **requiredBooleanGroup** | **bool?**| Required Boolean in group parameters | 
- **requiredInt64Group** | **long?**| Required Integer in group parameters | 
- **stringGroup** | **int?**| String in group parameters | [optional] 
- **booleanGroup** | **bool?**| Boolean in group parameters | [optional] 
- **int64Group** | **long?**| Integer in group parameters | [optional] 
+ **requiredStringGroup** | **int**| Required String in group parameters | 
+ **requiredBooleanGroup** | **bool**| Required Boolean in group parameters | 
+ **requiredInt64Group** | **long**| Required Integer in group parameters | 
+ **stringGroup** | **int**| String in group parameters | [optional] 
+ **booleanGroup** | **bool**| Boolean in group parameters | [optional] 
+ **int64Group** | **long**| Integer in group parameters | [optional] 
 
 ### Return type
 
@@ -793,6 +878,11 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Someting wrong |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -808,7 +898,7 @@ test inline additionalProperties
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -818,9 +908,10 @@ namespace Example
 {
     public class TestInlineAdditionalPropertiesExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var param = new Dictionary<string, string>(); // Dictionary<string, string> | request body
 
             try
@@ -828,9 +919,11 @@ namespace Example
                 // test inline additionalProperties
                 apiInstance.TestInlineAdditionalProperties(param);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestInlineAdditionalProperties: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -857,6 +950,11 @@ No authorization required
 - **Content-Type**: application/json
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -872,7 +970,7 @@ test json serialization of form data
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -882,9 +980,10 @@ namespace Example
 {
     public class TestJsonFormDataExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new FakeApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new FakeApi(Configuration.Default);
             var param = param_example;  // string | field1
             var param2 = param2_example;  // string | field2
 
@@ -893,9 +992,11 @@ namespace Example
                 // test json serialization of form data
                 apiInstance.TestJsonFormData(param, param2);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeApi.TestJsonFormData: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -923,6 +1024,11 @@ No authorization required
 - **Content-Type**: application/x-www-form-urlencoded
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/FakeClassnameTags123Api.md

@@ -19,7 +19,7 @@ To test class name in snake case
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -29,14 +29,15 @@ namespace Example
 {
     public class TestClassnameExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure API key authorization: api_key_query
             Configuration.Default.AddApiKey("api_key_query", "YOUR_API_KEY");
             // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
             // Configuration.Default.AddApiKeyPrefix("api_key_query", "Bearer");
 
-            var apiInstance = new FakeClassnameTags123Api();
+            var apiInstance = new FakeClassnameTags123Api(Configuration.Default);
             var body = new ModelClient(); // ModelClient | client model
 
             try
@@ -45,9 +46,11 @@ namespace Example
                 ModelClient result = apiInstance.TestClassname(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling FakeClassnameTags123Api.TestClassname: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -74,6 +77,11 @@ Name | Type | Description  | Notes
 - **Content-Type**: application/json
 - **Accept**: application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/FormatTest.md

@@ -5,18 +5,18 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Integer** | **int?** |  | [optional] 
-**Int32** | **int?** |  | [optional] 
-**Int64** | **long?** |  | [optional] 
-**Number** | **decimal?** |  | 
-**Float** | **float?** |  | [optional] 
-**Double** | **double?** |  | [optional] 
+**Integer** | **int** |  | [optional] 
+**Int32** | **int** |  | [optional] 
+**Int64** | **long** |  | [optional] 
+**Number** | **decimal** |  | 
+**Float** | **float** |  | [optional] 
+**Double** | **double** |  | [optional] 
 **String** | **string** |  | [optional] 
 **Byte** | **byte[]** |  | 
 **Binary** | **System.IO.Stream** |  | [optional] 
-**Date** | **DateTime?** |  | 
-**DateTime** | **DateTime?** |  | [optional] 
-**Uuid** | **Guid?** |  | [optional] 
+**Date** | **DateTime** |  | 
+**DateTime** | **DateTime** |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
 **Password** | **string** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/MapTest.md

@@ -7,8 +7,8 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **MapMapOfString** | **Dictionary<string, Dictionary<string, string>>** |  | [optional] 
 **MapOfEnumString** | **Dictionary<string, string>** |  | [optional] 
-**DirectMap** | **Dictionary<string, bool?>** |  | [optional] 
-**IndirectMap** | **Dictionary<string, bool?>** |  | [optional] 
+**DirectMap** | **Dictionary<string, bool>** |  | [optional] 
+**IndirectMap** | **Dictionary<string, bool>** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/MixedPropertiesAndAdditionalPropertiesClass.md

@@ -5,8 +5,8 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Uuid** | **Guid?** |  | [optional] 
-**DateTime** | **DateTime?** |  | [optional] 
+**Uuid** | **Guid** |  | [optional] 
+**DateTime** | **DateTime** |  | [optional] 
 **Map** | [**Dictionary<string, Animal>**](Animal.md) |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Model200Response.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Name** | **int?** |  | [optional] 
+**Name** | **int** |  | [optional] 
 **Class** | **string** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Name.md

@@ -5,10 +5,10 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**_Name** | **int?** |  | 
-**SnakeCase** | **int?** |  | [optional] 
+**_Name** | **int** |  | 
+**SnakeCase** | **int** |  | [optional] 
 **Property** | **string** |  | [optional] 
-**_123Number** | **int?** |  | [optional] 
+**_123Number** | **int** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/NumberOnly.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**JustNumber** | **decimal?** |  | [optional] 
+**JustNumber** | **decimal** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Order.md

@@ -5,12 +5,12 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
-**PetId** | **long?** |  | [optional] 
-**Quantity** | **int?** |  | [optional] 
-**ShipDate** | **DateTime?** |  | [optional] 
+**Id** | **long** |  | [optional] 
+**PetId** | **long** |  | [optional] 
+**Quantity** | **int** |  | [optional] 
+**ShipDate** | **DateTime** |  | [optional] 
 **Status** | **string** | Order Status | [optional] 
-**Complete** | **bool?** |  | [optional] [default to false]
+**Complete** | **bool** |  | [optional] [default to false]
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/OuterComposite.md

@@ -5,9 +5,9 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**MyNumber** | **decimal?** |  | [optional] 
+**MyNumber** | **decimal** |  | [optional] 
 **MyString** | **string** |  | [optional] 
-**MyBoolean** | **bool?** |  | [optional] 
+**MyBoolean** | **bool** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Pet.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
+**Id** | **long** |  | [optional] 
 **Category** | [**Category**](Category.md) |  | [optional] 
 **Name** | **string** |  | 
 **PhotoUrls** | **List<string>** |  | 

samples/client/petstore/csharp/OpenAPIClientNet35/docs/PetApi.md

@@ -25,7 +25,7 @@ Add a new pet to the store
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -35,12 +35,13 @@ namespace Example
 {
     public class AddPetExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
+            var apiInstance = new PetApi(Configuration.Default);
             var body = new Pet(); // Pet | Pet object that needs to be added to the store
 
             try
@@ -48,9 +49,11 @@ namespace Example
                 // Add a new pet to the store
                 apiInstance.AddPet(body);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.AddPet: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -77,6 +80,12 @@ void (empty response body)
 - **Content-Type**: application/json, application/xml
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **405** | Invalid input |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -85,14 +94,14 @@ void (empty response body)
 
 ## DeletePet
 
-> void DeletePet (long? petId, string apiKey = null)
+> void DeletePet (long petId, string apiKey = null)
 
 Deletes a pet
 
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -102,13 +111,14 @@ namespace Example
 {
     public class DeletePetExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
-            var petId = 789;  // long? | Pet id to delete
+            var apiInstance = new PetApi(Configuration.Default);
+            var petId = 789;  // long | Pet id to delete
             var apiKey = apiKey_example;  // string |  (optional) 
 
             try
@@ -116,9 +126,11 @@ namespace Example
                 // Deletes a pet
                 apiInstance.DeletePet(petId, apiKey);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.DeletePet: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -130,7 +142,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| Pet id to delete | 
+ **petId** | **long**| Pet id to delete | 
  **apiKey** | **string**|  | [optional] 
 
 ### Return type
@@ -146,6 +158,12 @@ void (empty response body)
 - **Content-Type**: Not defined
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid pet value |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -154,7 +172,7 @@ void (empty response body)
 
 ## FindPetsByStatus
 
-> List<Pet> FindPetsByStatus (List<string> status)
+> List&lt;Pet&gt; FindPetsByStatus (List<string> status)
 
 Finds Pets by status
 
@@ -163,7 +181,7 @@ Multiple status values can be provided with comma separated strings
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -173,23 +191,26 @@ namespace Example
 {
     public class FindPetsByStatusExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
+            var apiInstance = new PetApi(Configuration.Default);
             var status = status_example;  // List<string> | Status values that need to be considered for filter
 
             try
             {
                 // Finds Pets by status
-                List&lt;Pet&gt; result = apiInstance.FindPetsByStatus(status);
+                List<Pet> result = apiInstance.FindPetsByStatus(status);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.FindPetsByStatus: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -205,7 +226,7 @@ Name | Type | Description  | Notes
 
 ### Return type
 
-[**List<Pet>**](Pet.md)
+[**List&lt;Pet&gt;**](Pet.md)
 
 ### Authorization
 
@@ -216,6 +237,12 @@ Name | Type | Description  | Notes
 - **Content-Type**: Not defined
 - **Accept**: application/xml, application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid status value |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -224,7 +251,7 @@ Name | Type | Description  | Notes
 
 ## FindPetsByTags
 
-> List<Pet> FindPetsByTags (List<string> tags)
+> List&lt;Pet&gt; FindPetsByTags (List<string> tags)
 
 Finds Pets by tags
 
@@ -233,7 +260,7 @@ Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -243,23 +270,26 @@ namespace Example
 {
     public class FindPetsByTagsExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
+            var apiInstance = new PetApi(Configuration.Default);
             var tags = new List<string>(); // List<string> | Tags to filter by
 
             try
             {
                 // Finds Pets by tags
-                List&lt;Pet&gt; result = apiInstance.FindPetsByTags(tags);
+                List<Pet> result = apiInstance.FindPetsByTags(tags);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.FindPetsByTags: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -275,7 +305,7 @@ Name | Type | Description  | Notes
 
 ### Return type
 
-[**List<Pet>**](Pet.md)
+[**List&lt;Pet&gt;**](Pet.md)
 
 ### Authorization
 
@@ -286,6 +316,12 @@ Name | Type | Description  | Notes
 - **Content-Type**: Not defined
 - **Accept**: application/xml, application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid tag value |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -294,7 +330,7 @@ Name | Type | Description  | Notes
 
 ## GetPetById
 
-> Pet GetPetById (long? petId)
+> Pet GetPetById (long petId)
 
 Find pet by ID
 
@@ -303,7 +339,7 @@ Returns a single pet
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -313,15 +349,16 @@ namespace Example
 {
     public class GetPetByIdExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure API key authorization: api_key
             Configuration.Default.AddApiKey("api_key", "YOUR_API_KEY");
             // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
             // Configuration.Default.AddApiKeyPrefix("api_key", "Bearer");
 
-            var apiInstance = new PetApi();
-            var petId = 789;  // long? | ID of pet to return
+            var apiInstance = new PetApi(Configuration.Default);
+            var petId = 789;  // long | ID of pet to return
 
             try
             {
@@ -329,9 +366,11 @@ namespace Example
                 Pet result = apiInstance.GetPetById(petId);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.GetPetById: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -343,7 +382,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet to return | 
+ **petId** | **long**| ID of pet to return | 
 
 ### Return type
 
@@ -358,6 +397,13 @@ Name | Type | Description  | Notes
 - **Content-Type**: Not defined
 - **Accept**: application/xml, application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Pet not found |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -373,7 +419,7 @@ Update an existing pet
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -383,12 +429,13 @@ namespace Example
 {
     public class UpdatePetExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
+            var apiInstance = new PetApi(Configuration.Default);
             var body = new Pet(); // Pet | Pet object that needs to be added to the store
 
             try
@@ -396,9 +443,11 @@ namespace Example
                 // Update an existing pet
                 apiInstance.UpdatePet(body);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.UpdatePet: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -425,6 +474,14 @@ void (empty response body)
 - **Content-Type**: application/json, application/xml
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Pet not found |  -  |
+| **405** | Validation exception |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -433,14 +490,14 @@ void (empty response body)
 
 ## UpdatePetWithForm
 
-> void UpdatePetWithForm (long? petId, string name = null, string status = null)
+> void UpdatePetWithForm (long petId, string name = null, string status = null)
 
 Updates a pet in the store with form data
 
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -450,13 +507,14 @@ namespace Example
 {
     public class UpdatePetWithFormExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
-            var petId = 789;  // long? | ID of pet that needs to be updated
+            var apiInstance = new PetApi(Configuration.Default);
+            var petId = 789;  // long | ID of pet that needs to be updated
             var name = name_example;  // string | Updated name of the pet (optional) 
             var status = status_example;  // string | Updated status of the pet (optional) 
 
@@ -465,9 +523,11 @@ namespace Example
                 // Updates a pet in the store with form data
                 apiInstance.UpdatePetWithForm(petId, name, status);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.UpdatePetWithForm: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -479,7 +539,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet that needs to be updated | 
+ **petId** | **long**| ID of pet that needs to be updated | 
  **name** | **string**| Updated name of the pet | [optional] 
  **status** | **string**| Updated status of the pet | [optional] 
 
@@ -496,6 +556,11 @@ void (empty response body)
 - **Content-Type**: application/x-www-form-urlencoded
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **405** | Invalid input |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -504,14 +569,14 @@ void (empty response body)
 
 ## UploadFile
 
-> ApiResponse UploadFile (long? petId, string additionalMetadata = null, System.IO.Stream file = null)
+> ApiResponse UploadFile (long petId, string additionalMetadata = null, System.IO.Stream file = null)
 
 uploads an image
 
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -521,13 +586,14 @@ namespace Example
 {
     public class UploadFileExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
-            var petId = 789;  // long? | ID of pet to update
+            var apiInstance = new PetApi(Configuration.Default);
+            var petId = 789;  // long | ID of pet to update
             var additionalMetadata = additionalMetadata_example;  // string | Additional data to pass to server (optional) 
             var file = BINARY_DATA_HERE;  // System.IO.Stream | file to upload (optional) 
 
@@ -537,9 +603,11 @@ namespace Example
                 ApiResponse result = apiInstance.UploadFile(petId, additionalMetadata, file);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.UploadFile: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -551,7 +619,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet to update | 
+ **petId** | **long**| ID of pet to update | 
  **additionalMetadata** | **string**| Additional data to pass to server | [optional] 
  **file** | **System.IO.Stream**| file to upload | [optional] 
 
@@ -568,6 +636,11 @@ Name | Type | Description  | Notes
 - **Content-Type**: multipart/form-data
 - **Accept**: application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -576,14 +649,14 @@ Name | Type | Description  | Notes
 
 ## UploadFileWithRequiredFile
 
-> ApiResponse UploadFileWithRequiredFile (long? petId, System.IO.Stream requiredFile, string additionalMetadata = null)
+> ApiResponse UploadFileWithRequiredFile (long petId, System.IO.Stream requiredFile, string additionalMetadata = null)
 
 uploads an image (required)
 
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -593,13 +666,14 @@ namespace Example
 {
     public class UploadFileWithRequiredFileExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure OAuth2 access token for authorization: petstore_auth
             Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";
 
-            var apiInstance = new PetApi();
-            var petId = 789;  // long? | ID of pet to update
+            var apiInstance = new PetApi(Configuration.Default);
+            var petId = 789;  // long | ID of pet to update
             var requiredFile = BINARY_DATA_HERE;  // System.IO.Stream | file to upload
             var additionalMetadata = additionalMetadata_example;  // string | Additional data to pass to server (optional) 
 
@@ -609,9 +683,11 @@ namespace Example
                 ApiResponse result = apiInstance.UploadFileWithRequiredFile(petId, requiredFile, additionalMetadata);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling PetApi.UploadFileWithRequiredFile: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -623,7 +699,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **petId** | **long?**| ID of pet to update | 
+ **petId** | **long**| ID of pet to update | 
  **requiredFile** | **System.IO.Stream**| file to upload | 
  **additionalMetadata** | **string**| Additional data to pass to server | [optional] 
 
@@ -640,6 +716,11 @@ Name | Type | Description  | Notes
 - **Content-Type**: multipart/form-data
 - **Accept**: application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Return.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**_Return** | **int?** |  | [optional] 
+**_Return** | **int** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/SpecialModelName.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**SpecialPropertyName** | **long?** |  | [optional] 
+**SpecialPropertyName** | **long** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/StoreApi.md

@@ -22,7 +22,7 @@ For valid response try integer IDs with value < 1000. Anything above 1000 or non
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -32,9 +32,10 @@ namespace Example
 {
     public class DeleteOrderExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new StoreApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new StoreApi(Configuration.Default);
             var orderId = orderId_example;  // string | ID of the order that needs to be deleted
 
             try
@@ -42,9 +43,11 @@ namespace Example
                 // Delete purchase order by ID
                 apiInstance.DeleteOrder(orderId);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling StoreApi.DeleteOrder: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -71,6 +74,12 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: Not defined
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **400** | Invalid ID supplied |  -  |
+| **404** | Order not found |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -79,7 +88,7 @@ No authorization required
 
 ## GetInventory
 
-> Dictionary<string, int?> GetInventory ()
+> Dictionary&lt;string, int&gt; GetInventory ()
 
 Returns pet inventories by status
 
@@ -88,7 +97,7 @@ Returns a map of status codes to quantities
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -98,24 +107,27 @@ namespace Example
 {
     public class GetInventoryExample
     {
-        public void main()
+        public static void Main()
         {
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
             // Configure API key authorization: api_key
             Configuration.Default.AddApiKey("api_key", "YOUR_API_KEY");
             // Uncomment below to setup prefix (e.g. Bearer) for API key, if needed
             // Configuration.Default.AddApiKeyPrefix("api_key", "Bearer");
 
-            var apiInstance = new StoreApi();
+            var apiInstance = new StoreApi(Configuration.Default);
 
             try
             {
                 // Returns pet inventories by status
-                Dictionary&lt;string, int?&gt; result = apiInstance.GetInventory();
+                Dictionary<string, int> result = apiInstance.GetInventory();
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling StoreApi.GetInventory: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -128,7 +140,7 @@ This endpoint does not need any parameter.
 
 ### Return type
 
-**Dictionary<string, int?>**
+**Dictionary<string, int>**
 
 ### Authorization
 
@@ -139,6 +151,11 @@ This endpoint does not need any parameter.
 - **Content-Type**: Not defined
 - **Accept**: application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -147,7 +164,7 @@ This endpoint does not need any parameter.
 
 ## GetOrderById
 
-> Order GetOrderById (long? orderId)
+> Order GetOrderById (long orderId)
 
 Find purchase order by ID
 
@@ -156,7 +173,7 @@ For valid response try integer IDs with value <= 5 or > 10. Other values will ge
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -166,10 +183,11 @@ namespace Example
 {
     public class GetOrderByIdExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new StoreApi();
-            var orderId = 789;  // long? | ID of pet that needs to be fetched
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new StoreApi(Configuration.Default);
+            var orderId = 789;  // long | ID of pet that needs to be fetched
 
             try
             {
@@ -177,9 +195,11 @@ namespace Example
                 Order result = apiInstance.GetOrderById(orderId);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling StoreApi.GetOrderById: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -191,7 +211,7 @@ namespace Example
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **orderId** | **long?**| ID of pet that needs to be fetched | 
+ **orderId** | **long**| ID of pet that needs to be fetched | 
 
 ### Return type
 
@@ -206,6 +226,13 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: application/xml, application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid ID supplied |  -  |
+| **404** | Order not found |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)
@@ -221,7 +248,7 @@ Place an order for a pet
 ### Example
 
 ```csharp
-using System;
+using System.Collections.Generic;
 using System.Diagnostics;
 using Org.OpenAPITools.Api;
 using Org.OpenAPITools.Client;
@@ -231,9 +258,10 @@ namespace Example
 {
     public class PlaceOrderExample
     {
-        public void main()
+        public static void Main()
         {
-            var apiInstance = new StoreApi();
+            Configuration.Default.BasePath = "http://petstore.swagger.io:80/v2";
+            var apiInstance = new StoreApi(Configuration.Default);
             var body = new Order(); // Order | order placed for purchasing the pet
 
             try
@@ -242,9 +270,11 @@ namespace Example
                 Order result = apiInstance.PlaceOrder(body);
                 Debug.WriteLine(result);
             }
-            catch (Exception e)
+            catch (ApiException e)
             {
                 Debug.Print("Exception when calling StoreApi.PlaceOrder: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
             }
         }
     }
@@ -271,6 +301,12 @@ No authorization required
 - **Content-Type**: Not defined
 - **Accept**: application/xml, application/json
 
+### HTTP response details
+| Status code | Description | Response headers |
+|-------------|-------------|------------------|
+| **200** | successful operation |  -  |
+| **400** | Invalid Order |  -  |
+
 [[Back to top]](#)
 [[Back to API list]](../README.md#documentation-for-api-endpoints)
 [[Back to Model list]](../README.md#documentation-for-models)

samples/client/petstore/csharp/OpenAPIClientNet35/docs/Tag.md

@@ -5,7 +5,7 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**Id** | **long?** |  | [optional] 
+**Id** | **long** |  | [optional] 
 **Name** | **string** |  | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models)