diff --git a/modules/openapi-generator/src/main/resources/typescript/types/ObjectParamAPI.mustache b/modules/openapi-generator/src/main/resources/typescript/types/ObjectParamAPI.mustache
index a9642772501..28cd9d4d6ca 100644
--- a/modules/openapi-generator/src/main/resources/typescript/types/ObjectParamAPI.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript/types/ObjectParamAPI.mustache
@@ -21,6 +21,15 @@ export interface {{classname}}{{operationIdCamelCase}}Request {
     {{#allParams}}
     /**
      * {{description}}
+     {{#minimum}}
+     * Minimum: {{minimum}}
+     {{/minimum}}
+     {{#maximum}}
+     * Maximum: {{maximum}}
+     {{/maximum}}
+     {{#defaultValue}}
+     * Defaults to: {{defaultValue}}
+     {{/defaultValue}}
      * @type {{dataType}}
      * @memberof {{classname}}{{nickname}}
      */
diff --git a/modules/openapi-generator/src/main/resources/typescript/types/ObservableAPI.mustache b/modules/openapi-generator/src/main/resources/typescript/types/ObservableAPI.mustache
index 00bbb8018b0..4de2c5faa5c 100644
--- a/modules/openapi-generator/src/main/resources/typescript/types/ObservableAPI.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript/types/ObservableAPI.mustache
@@ -58,7 +58,7 @@ export class Observable{{classname}} {
      * {{&summary}}
      {{/summary}}
      {{#allParams}}
-     * @param {{paramName}} {{description}}
+     * @param {{#required}}{{paramName}}{{/required}}{{^required}}[{{paramName}}]{{/required}}{{#description}} {{description}}{{/description}}
      {{/allParams}}
      */
     public {{nickname}}WithHttpInfo({{#allParams}}{{paramName}}{{^required}}?{{/required}}: {{{dataType}}}, {{/allParams}}_options?: Configuration): Observable<HttpInfo<{{{returnType}}}{{^returnType}}void{{/returnType}}>> {
@@ -88,7 +88,7 @@ export class Observable{{classname}} {
      * {{&summary}}
      {{/summary}}
      {{#allParams}}
-     * @param {{paramName}} {{description}}
+     * @param {{#required}}{{paramName}}{{/required}}{{^required}}[{{paramName}}]{{/required}}{{#description}} {{description}}{{/description}}
      {{/allParams}}
      */
     public {{nickname}}({{#allParams}}{{paramName}}{{^required}}?{{/required}}: {{{dataType}}}, {{/allParams}}_options?: Configuration): Observable<{{{returnType}}}{{^returnType}}void{{/returnType}}> {
diff --git a/modules/openapi-generator/src/main/resources/typescript/types/PromiseAPI.mustache b/modules/openapi-generator/src/main/resources/typescript/types/PromiseAPI.mustache
index 4afcfa2df01..0a5d71e03f3 100644
--- a/modules/openapi-generator/src/main/resources/typescript/types/PromiseAPI.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript/types/PromiseAPI.mustache
@@ -48,7 +48,7 @@ export class Promise{{classname}} {
      * {{&summary}}
      {{/summary}}
      {{#allParams}}
-     * @param {{paramName}} {{description}}
+     * @param {{#required}}{{paramName}}{{/required}}{{^required}}[{{paramName}}]{{/required}}{{#description}} {{description}}{{/description}}
      {{/allParams}}
      */
     public {{nickname}}WithHttpInfo({{#allParams}}{{paramName}}{{^required}}?{{/required}}: {{{dataType}}}, {{/allParams}}_options?: Configuration): Promise<HttpInfo<{{{returnType}}}{{^returnType}}void{{/returnType}}>> {
@@ -64,7 +64,7 @@ export class Promise{{classname}} {
      * {{&summary}}
      {{/summary}}
      {{#allParams}}
-     * @param {{paramName}} {{description}}
+     * @param {{#required}}{{paramName}}{{/required}}{{^required}}[{{paramName}}]{{/required}}{{#description}} {{description}}{{/description}}
      {{/allParams}}
      */
     public {{nickname}}({{#allParams}}{{paramName}}{{^required}}?{{/required}}: {{{dataType}}}, {{/allParams}}_options?: Configuration): Promise<{{{returnType}}}{{^returnType}}void{{/returnType}}> {
diff --git a/samples/client/others/typescript/encode-decode/build/types/ObservableAPI.ts b/samples/client/others/typescript/encode-decode/build/types/ObservableAPI.ts
index 3b4bc6b4c73..36d0b69c684 100644
--- a/samples/client/others/typescript/encode-decode/build/types/ObservableAPI.ts
+++ b/samples/client/others/typescript/encode-decode/build/types/ObservableAPI.ts
@@ -454,7 +454,7 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfArraysPostWithHttpInfo(requestBody: Array<Array<string>>, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeArrayOfArraysPost(requestBody, _options);
@@ -476,14 +476,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfArraysPost(requestBody: Array<Array<string>>, _options?: Configuration): Observable<void> {
         return this.testEncodeArrayOfArraysPostWithHttpInfo(requestBody, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfMapsOfObjectsPostWithHttpInfo(complexObject: Array<{ [key: string]: ComplexObject; }>, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeArrayOfMapsOfObjectsPost(complexObject, _options);
@@ -505,14 +505,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfMapsOfObjectsPost(complexObject: Array<{ [key: string]: ComplexObject; }>, _options?: Configuration): Observable<void> {
         return this.testEncodeArrayOfMapsOfObjectsPostWithHttpInfo(complexObject, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfNullableObjectsPostWithHttpInfo(complexObject: Array<ComplexObject>, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeArrayOfNullableObjectsPost(complexObject, _options);
@@ -534,14 +534,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfNullableObjectsPost(complexObject: Array<ComplexObject>, _options?: Configuration): Observable<void> {
         return this.testEncodeArrayOfNullableObjectsPostWithHttpInfo(complexObject, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfNullablePostWithHttpInfo(requestBody: Array<string | null>, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeArrayOfNullablePost(requestBody, _options);
@@ -563,14 +563,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfNullablePost(requestBody: Array<string | null>, _options?: Configuration): Observable<void> {
         return this.testEncodeArrayOfNullablePostWithHttpInfo(requestBody, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfPostWithHttpInfo(requestBody: Array<string>, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeArrayOfPost(requestBody, _options);
@@ -592,14 +592,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfPost(requestBody: Array<string>, _options?: Configuration): Observable<void> {
         return this.testEncodeArrayOfPostWithHttpInfo(requestBody, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param compositeObject 
+     * @param compositeObject
      */
     public testEncodeCompositeObjectsPostWithHttpInfo(compositeObject: CompositeObject, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeCompositeObjectsPost(compositeObject, _options);
@@ -621,14 +621,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param compositeObject 
+     * @param compositeObject
      */
     public testEncodeCompositeObjectsPost(compositeObject: CompositeObject, _options?: Configuration): Observable<void> {
         return this.testEncodeCompositeObjectsPostWithHttpInfo(compositeObject, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfMapsOfObjectsPostWithHttpInfo(requestBody: { [key: string]: { [key: string]: ComplexObject; }; }, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeMapOfMapsOfObjectsPost(requestBody, _options);
@@ -650,14 +650,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfMapsOfObjectsPost(requestBody: { [key: string]: { [key: string]: ComplexObject; }; }, _options?: Configuration): Observable<void> {
         return this.testEncodeMapOfMapsOfObjectsPostWithHttpInfo(requestBody, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfObjectsPostWithHttpInfo(requestBody: { [key: string]: ComplexObject | null; }, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeMapOfObjectsPost(requestBody, _options);
@@ -679,14 +679,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfObjectsPost(requestBody: { [key: string]: ComplexObject | null; }, _options?: Configuration): Observable<void> {
         return this.testEncodeMapOfObjectsPostWithHttpInfo(requestBody, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfPrimitivePostWithHttpInfo(requestBody: { [key: string]: string; }, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeMapOfPrimitivePost(requestBody, _options);
@@ -708,14 +708,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfPrimitivePost(requestBody: { [key: string]: string; }, _options?: Configuration): Observable<void> {
         return this.testEncodeMapOfPrimitivePostWithHttpInfo(requestBody, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param requestBody 
+     * @param [requestBody]
      */
     public testEncodeNullableArrayPostWithHttpInfo(requestBody?: Array<string>, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeNullableArrayPost(requestBody, _options);
@@ -737,14 +737,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param [requestBody]
      */
     public testEncodeNullableArrayPost(requestBody?: Array<string>, _options?: Configuration): Observable<void> {
         return this.testEncodeNullableArrayPostWithHttpInfo(requestBody, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param body 
+     * @param [body]
      */
     public testEncodeNullablePostWithHttpInfo(body?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeNullablePost(body, _options);
@@ -766,14 +766,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param [body]
      */
     public testEncodeNullablePost(body?: string, _options?: Configuration): Observable<void> {
         return this.testEncodeNullablePostWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeObjectPostWithHttpInfo(complexObject: ComplexObject, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodeObjectPost(complexObject, _options);
@@ -795,14 +795,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeObjectPost(complexObject: ComplexObject, _options?: Configuration): Observable<void> {
         return this.testEncodeObjectPostWithHttpInfo(complexObject, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveBooleanPostWithHttpInfo(body: boolean, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodePrimitiveBooleanPost(body, _options);
@@ -824,14 +824,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveBooleanPost(body: boolean, _options?: Configuration): Observable<void> {
         return this.testEncodePrimitiveBooleanPostWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveIntegerPostWithHttpInfo(body: number, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodePrimitiveIntegerPost(body, _options);
@@ -853,14 +853,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveIntegerPost(body: number, _options?: Configuration): Observable<void> {
         return this.testEncodePrimitiveIntegerPostWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveNumberPostWithHttpInfo(body: number, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodePrimitiveNumberPost(body, _options);
@@ -882,14 +882,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveNumberPost(body: number, _options?: Configuration): Observable<void> {
         return this.testEncodePrimitiveNumberPostWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveStringPostWithHttpInfo(body: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEncodePrimitiveStringPost(body, _options);
@@ -911,7 +911,7 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveStringPost(body: string, _options?: Configuration): Observable<void> {
         return this.testEncodePrimitiveStringPostWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
diff --git a/samples/client/others/typescript/encode-decode/build/types/PromiseAPI.ts b/samples/client/others/typescript/encode-decode/build/types/PromiseAPI.ts
index 48207b6c590..4e0e05472ee 100644
--- a/samples/client/others/typescript/encode-decode/build/types/PromiseAPI.ts
+++ b/samples/client/others/typescript/encode-decode/build/types/PromiseAPI.ts
@@ -242,7 +242,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfArraysPostWithHttpInfo(requestBody: Array<Array<string>>, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeArrayOfArraysPostWithHttpInfo(requestBody, _options);
@@ -250,7 +250,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfArraysPost(requestBody: Array<Array<string>>, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeArrayOfArraysPost(requestBody, _options);
@@ -258,7 +258,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfMapsOfObjectsPostWithHttpInfo(complexObject: Array<{ [key: string]: ComplexObject; }>, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeArrayOfMapsOfObjectsPostWithHttpInfo(complexObject, _options);
@@ -266,7 +266,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfMapsOfObjectsPost(complexObject: Array<{ [key: string]: ComplexObject; }>, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeArrayOfMapsOfObjectsPost(complexObject, _options);
@@ -274,7 +274,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfNullableObjectsPostWithHttpInfo(complexObject: Array<ComplexObject>, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeArrayOfNullableObjectsPostWithHttpInfo(complexObject, _options);
@@ -282,7 +282,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeArrayOfNullableObjectsPost(complexObject: Array<ComplexObject>, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeArrayOfNullableObjectsPost(complexObject, _options);
@@ -290,7 +290,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfNullablePostWithHttpInfo(requestBody: Array<string | null>, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeArrayOfNullablePostWithHttpInfo(requestBody, _options);
@@ -298,7 +298,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfNullablePost(requestBody: Array<string | null>, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeArrayOfNullablePost(requestBody, _options);
@@ -306,7 +306,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfPostWithHttpInfo(requestBody: Array<string>, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeArrayOfPostWithHttpInfo(requestBody, _options);
@@ -314,7 +314,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeArrayOfPost(requestBody: Array<string>, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeArrayOfPost(requestBody, _options);
@@ -322,7 +322,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param compositeObject 
+     * @param compositeObject
      */
     public testEncodeCompositeObjectsPostWithHttpInfo(compositeObject: CompositeObject, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeCompositeObjectsPostWithHttpInfo(compositeObject, _options);
@@ -330,7 +330,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param compositeObject 
+     * @param compositeObject
      */
     public testEncodeCompositeObjectsPost(compositeObject: CompositeObject, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeCompositeObjectsPost(compositeObject, _options);
@@ -338,7 +338,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfMapsOfObjectsPostWithHttpInfo(requestBody: { [key: string]: { [key: string]: ComplexObject; }; }, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeMapOfMapsOfObjectsPostWithHttpInfo(requestBody, _options);
@@ -346,7 +346,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfMapsOfObjectsPost(requestBody: { [key: string]: { [key: string]: ComplexObject; }; }, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeMapOfMapsOfObjectsPost(requestBody, _options);
@@ -354,7 +354,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfObjectsPostWithHttpInfo(requestBody: { [key: string]: ComplexObject | null; }, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeMapOfObjectsPostWithHttpInfo(requestBody, _options);
@@ -362,7 +362,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfObjectsPost(requestBody: { [key: string]: ComplexObject | null; }, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeMapOfObjectsPost(requestBody, _options);
@@ -370,7 +370,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfPrimitivePostWithHttpInfo(requestBody: { [key: string]: string; }, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeMapOfPrimitivePostWithHttpInfo(requestBody, _options);
@@ -378,7 +378,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param requestBody
      */
     public testEncodeMapOfPrimitivePost(requestBody: { [key: string]: string; }, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeMapOfPrimitivePost(requestBody, _options);
@@ -386,7 +386,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param [requestBody]
      */
     public testEncodeNullableArrayPostWithHttpInfo(requestBody?: Array<string>, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeNullableArrayPostWithHttpInfo(requestBody, _options);
@@ -394,7 +394,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param requestBody 
+     * @param [requestBody]
      */
     public testEncodeNullableArrayPost(requestBody?: Array<string>, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeNullableArrayPost(requestBody, _options);
@@ -402,7 +402,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param [body]
      */
     public testEncodeNullablePostWithHttpInfo(body?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeNullablePostWithHttpInfo(body, _options);
@@ -410,7 +410,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param [body]
      */
     public testEncodeNullablePost(body?: string, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeNullablePost(body, _options);
@@ -418,7 +418,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeObjectPostWithHttpInfo(complexObject: ComplexObject, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodeObjectPostWithHttpInfo(complexObject, _options);
@@ -426,7 +426,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param complexObject 
+     * @param complexObject
      */
     public testEncodeObjectPost(complexObject: ComplexObject, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodeObjectPost(complexObject, _options);
@@ -434,7 +434,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveBooleanPostWithHttpInfo(body: boolean, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodePrimitiveBooleanPostWithHttpInfo(body, _options);
@@ -442,7 +442,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveBooleanPost(body: boolean, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodePrimitiveBooleanPost(body, _options);
@@ -450,7 +450,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveIntegerPostWithHttpInfo(body: number, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodePrimitiveIntegerPostWithHttpInfo(body, _options);
@@ -458,7 +458,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveIntegerPost(body: number, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodePrimitiveIntegerPost(body, _options);
@@ -466,7 +466,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveNumberPostWithHttpInfo(body: number, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodePrimitiveNumberPostWithHttpInfo(body, _options);
@@ -474,7 +474,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveNumberPost(body: number, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodePrimitiveNumberPost(body, _options);
@@ -482,7 +482,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveStringPostWithHttpInfo(body: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEncodePrimitiveStringPostWithHttpInfo(body, _options);
@@ -490,7 +490,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param body 
+     * @param body
      */
     public testEncodePrimitiveStringPost(body: string, _options?: Configuration): Promise<void> {
         const result = this.api.testEncodePrimitiveStringPost(body, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/browser/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/browser/types/ObjectParamAPI.ts
index e3fe52eef28..568cc5c507b 100644
--- a/samples/openapi3/client/petstore/typescript/builds/browser/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/browser/types/ObjectParamAPI.ts
@@ -23,12 +23,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -38,6 +40,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -47,6 +50,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -56,6 +60,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -74,18 +79,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -95,18 +103,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -272,6 +283,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -284,6 +296,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -413,6 +428,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -422,6 +438,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -431,12 +448,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -449,6 +468,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/browser/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/browser/types/ObservableAPI.ts
index 138bcd33039..f344144c8b3 100644
--- a/samples/openapi3/client/petstore/typescript/builds/browser/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/browser/types/ObservableAPI.ts
@@ -62,7 +62,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -87,7 +87,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -229,8 +229,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -255,8 +255,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -266,8 +266,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -292,8 +292,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/browser/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/browser/types/PromiseAPI.ts
index 189962536f9..55af604f465 100644
--- a/samples/openapi3/client/petstore/typescript/builds/browser/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/browser/types/PromiseAPI.ts
@@ -45,7 +45,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -56,7 +56,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -147,8 +147,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -159,8 +159,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -171,8 +171,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -183,8 +183,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/ObservableAPI.ts
index 3517e181110..a8436e102d7 100644
--- a/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/ObservableAPI.ts
@@ -27,7 +27,7 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param filePostRequest 
+     * @param [filePostRequest]
      */
     public filePostWithHttpInfo(filePostRequest?: FilePostRequest, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.filePost(filePostRequest, _options);
@@ -49,14 +49,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param filePostRequest 
+     * @param [filePostRequest]
      */
     public filePost(filePostRequest?: FilePostRequest, _options?: Configuration): Observable<void> {
         return this.filePostWithHttpInfo(filePostRequest, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param petsFilteredPatchRequest 
+     * @param [petsFilteredPatchRequest]
      */
     public petsFilteredPatchWithHttpInfo(petsFilteredPatchRequest?: PetsFilteredPatchRequest, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.petsFilteredPatch(petsFilteredPatchRequest, _options);
@@ -78,14 +78,14 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param petsFilteredPatchRequest 
+     * @param [petsFilteredPatchRequest]
      */
     public petsFilteredPatch(petsFilteredPatchRequest?: PetsFilteredPatchRequest, _options?: Configuration): Observable<void> {
         return this.petsFilteredPatchWithHttpInfo(petsFilteredPatchRequest, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param petsPatchRequest 
+     * @param [petsPatchRequest]
      */
     public petsPatchWithHttpInfo(petsPatchRequest?: PetsPatchRequest, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.petsPatch(petsPatchRequest, _options);
@@ -107,7 +107,7 @@ export class ObservableDefaultApi {
     }
 
     /**
-     * @param petsPatchRequest 
+     * @param [petsPatchRequest]
      */
     public petsPatch(petsPatchRequest?: PetsPatchRequest, _options?: Configuration): Observable<void> {
         return this.petsPatchWithHttpInfo(petsPatchRequest, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/PromiseAPI.ts
index e311d2ffb60..44bd0126291 100644
--- a/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/composed-schemas/types/PromiseAPI.ts
@@ -23,7 +23,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param filePostRequest 
+     * @param [filePostRequest]
      */
     public filePostWithHttpInfo(filePostRequest?: FilePostRequest, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.filePostWithHttpInfo(filePostRequest, _options);
@@ -31,7 +31,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param filePostRequest 
+     * @param [filePostRequest]
      */
     public filePost(filePostRequest?: FilePostRequest, _options?: Configuration): Promise<void> {
         const result = this.api.filePost(filePostRequest, _options);
@@ -39,7 +39,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param petsFilteredPatchRequest 
+     * @param [petsFilteredPatchRequest]
      */
     public petsFilteredPatchWithHttpInfo(petsFilteredPatchRequest?: PetsFilteredPatchRequest, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.petsFilteredPatchWithHttpInfo(petsFilteredPatchRequest, _options);
@@ -47,7 +47,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param petsFilteredPatchRequest 
+     * @param [petsFilteredPatchRequest]
      */
     public petsFilteredPatch(petsFilteredPatchRequest?: PetsFilteredPatchRequest, _options?: Configuration): Promise<void> {
         const result = this.api.petsFilteredPatch(petsFilteredPatchRequest, _options);
@@ -55,7 +55,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param petsPatchRequest 
+     * @param [petsPatchRequest]
      */
     public petsPatchWithHttpInfo(petsPatchRequest?: PetsPatchRequest, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.petsPatchWithHttpInfo(petsPatchRequest, _options);
@@ -63,7 +63,7 @@ export class PromiseDefaultApi {
     }
 
     /**
-     * @param petsPatchRequest 
+     * @param [petsPatchRequest]
      */
     public petsPatch(petsPatchRequest?: PetsPatchRequest, _options?: Configuration): Promise<void> {
         const result = this.api.petsPatch(petsPatchRequest, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/default/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/default/types/ObjectParamAPI.ts
index e3fe52eef28..568cc5c507b 100644
--- a/samples/openapi3/client/petstore/typescript/builds/default/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/default/types/ObjectParamAPI.ts
@@ -23,12 +23,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -38,6 +40,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -47,6 +50,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -56,6 +60,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -74,18 +79,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -95,18 +103,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -272,6 +283,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -284,6 +296,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -413,6 +428,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -422,6 +438,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -431,12 +448,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -449,6 +468,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/default/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/default/types/ObservableAPI.ts
index 138bcd33039..f344144c8b3 100644
--- a/samples/openapi3/client/petstore/typescript/builds/default/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/default/types/ObservableAPI.ts
@@ -62,7 +62,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -87,7 +87,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -229,8 +229,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -255,8 +255,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -266,8 +266,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -292,8 +292,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/default/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/default/types/PromiseAPI.ts
index 189962536f9..55af604f465 100644
--- a/samples/openapi3/client/petstore/typescript/builds/default/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/default/types/PromiseAPI.ts
@@ -45,7 +45,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -56,7 +56,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -147,8 +147,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -159,8 +159,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -171,8 +171,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -183,8 +183,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/deno/types/ObjectParamAPI.ts
index cbdcc396353..5adebe19e36 100644
--- a/samples/openapi3/client/petstore/typescript/builds/deno/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/deno/types/ObjectParamAPI.ts
@@ -23,12 +23,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -38,6 +40,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -47,6 +50,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -56,6 +60,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -74,18 +79,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -95,18 +103,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -272,6 +283,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -284,6 +296,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -413,6 +428,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -422,6 +438,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -431,12 +448,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -449,6 +468,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/deno/types/ObservableAPI.ts
index adb938cdb32..db37cb934a0 100644
--- a/samples/openapi3/client/petstore/typescript/builds/deno/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/deno/types/ObservableAPI.ts
@@ -62,7 +62,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -87,7 +87,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -229,8 +229,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -255,8 +255,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -266,8 +266,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -292,8 +292,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/deno/types/PromiseAPI.ts
index a226b8d3482..f6909b6249a 100644
--- a/samples/openapi3/client/petstore/typescript/builds/deno/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/deno/types/PromiseAPI.ts
@@ -45,7 +45,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -56,7 +56,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -147,8 +147,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -159,8 +159,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -171,8 +171,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -183,8 +183,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObjectParamAPI.ts
index cbdcc396353..5adebe19e36 100644
--- a/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObjectParamAPI.ts
@@ -23,12 +23,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -38,6 +40,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -47,6 +50,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -56,6 +60,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -74,18 +79,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -95,18 +103,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -272,6 +283,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -284,6 +296,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -413,6 +428,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -422,6 +438,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -431,12 +448,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -449,6 +468,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObservableAPI.ts
index adb938cdb32..db37cb934a0 100644
--- a/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/ObservableAPI.ts
@@ -62,7 +62,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -87,7 +87,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -229,8 +229,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -255,8 +255,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -266,8 +266,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -292,8 +292,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/PromiseAPI.ts
index a226b8d3482..f6909b6249a 100644
--- a/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/deno_object_params/types/PromiseAPI.ts
@@ -45,7 +45,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -56,7 +56,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -147,8 +147,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -159,8 +159,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -171,8 +171,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -183,8 +183,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObjectParamAPI.ts
index b3756766102..8eea550598e 100644
--- a/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObjectParamAPI.ts
@@ -135,12 +135,14 @@ export interface FakeApiFakeHttpSignatureTestRequest {
     pet: Pet
     /**
      * query parameter
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApifakeHttpSignatureTest
      */
     query1?: string
     /**
      * header parameter
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApifakeHttpSignatureTest
      */
@@ -213,6 +215,7 @@ export interface FakeApiTestBodyWithFileSchemaRequest {
 export interface FakeApiTestBodyWithQueryParamsRequest {
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestBodyWithQueryParams
      */
@@ -237,84 +240,107 @@ export interface FakeApiTestClientModelRequest {
 export interface FakeApiTestEndpointParametersRequest {
     /**
      * None
+     * Minimum: 32.1
+     * Maximum: 543.2
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestEndpointParameters
      */
     number: number
     /**
      * None
+     * Minimum: 67.8
+     * Maximum: 123.4
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestEndpointParameters
      */
     _double: number
     /**
      * None
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestEndpointParameters
      */
     patternWithoutDelimiter: string
     /**
      * None
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestEndpointParameters
      */
     _byte: string
     /**
      * None
+     * Minimum: 10
+     * Maximum: 100
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestEndpointParameters
      */
     integer?: number
     /**
      * None
+     * Minimum: 20
+     * Maximum: 200
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestEndpointParameters
      */
     int32?: number
     /**
      * None
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestEndpointParameters
      */
     int64?: number
     /**
      * None
+     * Maximum: 987.6
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestEndpointParameters
      */
     _float?: number
     /**
      * None
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestEndpointParameters
      */
     string?: string
     /**
      * None
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof FakeApitestEndpointParameters
      */
     binary?: HttpFile
     /**
      * None
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestEndpointParameters
      */
     date?: string
     /**
      * None
+     * Defaults to: undefined
      * @type Date
      * @memberof FakeApitestEndpointParameters
      */
     dateTime?: Date
     /**
      * None
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestEndpointParameters
      */
     password?: string
     /**
      * None
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestEndpointParameters
      */
@@ -324,54 +350,63 @@ export interface FakeApiTestEndpointParametersRequest {
 export interface FakeApiTestEnumParametersRequest {
     /**
      * Header parameter enum test (string array)
+     * Defaults to: undefined
      * @type Array&lt;&#39;&gt;&#39; | &#39;$&#39;&gt;
      * @memberof FakeApitestEnumParameters
      */
     enumHeaderStringArray?: Array<'>' | '$'>
     /**
      * Header parameter enum test (string)
+     * Defaults to: &#39;-efg&#39;
      * @type &#39;_abc&#39; | &#39;-efg&#39; | &#39;(xyz)&#39;
      * @memberof FakeApitestEnumParameters
      */
     enumHeaderString?: '_abc' | '-efg' | '(xyz)'
     /**
      * Query parameter enum test (string array)
+     * Defaults to: undefined
      * @type Array&lt;&#39;&gt;&#39; | &#39;$&#39;&gt;
      * @memberof FakeApitestEnumParameters
      */
     enumQueryStringArray?: Array<'>' | '$'>
     /**
      * Query parameter enum test (string)
+     * Defaults to: &#39;-efg&#39;
      * @type &#39;_abc&#39; | &#39;-efg&#39; | &#39;(xyz)&#39;
      * @memberof FakeApitestEnumParameters
      */
     enumQueryString?: '_abc' | '-efg' | '(xyz)'
     /**
      * Query parameter enum test (double)
+     * Defaults to: undefined
      * @type 1 | -2
      * @memberof FakeApitestEnumParameters
      */
     enumQueryInteger?: 1 | -2
     /**
      * Query parameter enum test (double)
+     * Defaults to: undefined
      * @type 1.1 | -1.2
      * @memberof FakeApitestEnumParameters
      */
     enumQueryDouble?: 1.1 | -1.2
     /**
      * 
+     * Defaults to: undefined
      * @type Array&lt;EnumClass&gt;
      * @memberof FakeApitestEnumParameters
      */
     enumQueryModelArray?: Array<EnumClass>
     /**
      * Form parameter enum test (string array)
+     * Defaults to: &#39;$&#39;
      * @type Array&lt;string&gt;
      * @memberof FakeApitestEnumParameters
      */
     enumFormStringArray?: Array<string>
     /**
      * Form parameter enum test (string)
+     * Defaults to: &#39;-efg&#39;
      * @type string
      * @memberof FakeApitestEnumParameters
      */
@@ -381,36 +416,42 @@ export interface FakeApiTestEnumParametersRequest {
 export interface FakeApiTestGroupParametersRequest {
     /**
      * Required String in group parameters
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestGroupParameters
      */
     requiredStringGroup: number
     /**
      * Required Boolean in group parameters
+     * Defaults to: undefined
      * @type boolean
      * @memberof FakeApitestGroupParameters
      */
     requiredBooleanGroup: boolean
     /**
      * Required Integer in group parameters
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestGroupParameters
      */
     requiredInt64Group: number
     /**
      * String in group parameters
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestGroupParameters
      */
     stringGroup?: number
     /**
      * Boolean in group parameters
+     * Defaults to: undefined
      * @type boolean
      * @memberof FakeApitestGroupParameters
      */
     booleanGroup?: boolean
     /**
      * Integer in group parameters
+     * Defaults to: undefined
      * @type number
      * @memberof FakeApitestGroupParameters
      */
@@ -429,12 +470,14 @@ export interface FakeApiTestInlineAdditionalPropertiesRequest {
 export interface FakeApiTestJsonFormDataRequest {
     /**
      * field1
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestJsonFormData
      */
     param: string
     /**
      * field2
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestJsonFormData
      */
@@ -444,42 +487,49 @@ export interface FakeApiTestJsonFormDataRequest {
 export interface FakeApiTestQueryParameterCollectionFormatRequest {
     /**
      * 
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof FakeApitestQueryParameterCollectionFormat
      */
     pipe: Array<string>
     /**
      * 
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof FakeApitestQueryParameterCollectionFormat
      */
     ioutil: Array<string>
     /**
      * 
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof FakeApitestQueryParameterCollectionFormat
      */
     http: Array<string>
     /**
      * 
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof FakeApitestQueryParameterCollectionFormat
      */
     url: Array<string>
     /**
      * 
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof FakeApitestQueryParameterCollectionFormat
      */
     context: Array<string>
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof FakeApitestQueryParameterCollectionFormat
      */
     allowEmpty: string
     /**
      * 
+     * Defaults to: undefined
      * @type { [key: string]: string; }
      * @memberof FakeApitestQueryParameterCollectionFormat
      */
@@ -847,12 +897,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -862,6 +914,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -871,6 +924,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Set&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -880,6 +934,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -898,18 +953,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -919,18 +977,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -940,18 +1001,21 @@ export interface PetApiUploadFileRequest {
 export interface PetApiUploadFileWithRequiredFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFileWithRequiredFile
      */
     petId: number
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFileWithRequiredFile
      */
     requiredFile: HttpFile
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFileWithRequiredFile
      */
@@ -1135,6 +1199,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -1147,6 +1212,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -1276,6 +1344,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -1285,6 +1354,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -1294,12 +1364,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -1312,6 +1384,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObservableAPI.ts
index ad503a478a0..6f5c1e6f210 100644
--- a/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/explode-query/types/ObservableAPI.ts
@@ -223,8 +223,8 @@ export class ObservableFakeApi {
     /**
      * test http signature authentication
      * @param pet Pet object that needs to be added to the store
-     * @param query1 query parameter
-     * @param header1 header parameter
+     * @param [query1] query parameter
+     * @param [header1] header parameter
      */
     public fakeHttpSignatureTestWithHttpInfo(pet: Pet, query1?: string, header1?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.fakeHttpSignatureTest(pet, query1, header1, _options);
@@ -248,8 +248,8 @@ export class ObservableFakeApi {
     /**
      * test http signature authentication
      * @param pet Pet object that needs to be added to the store
-     * @param query1 query parameter
-     * @param header1 header parameter
+     * @param [query1] query parameter
+     * @param [header1] header parameter
      */
     public fakeHttpSignatureTest(pet: Pet, query1?: string, header1?: string, _options?: Configuration): Observable<void> {
         return this.fakeHttpSignatureTestWithHttpInfo(pet, query1, header1, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -257,7 +257,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of outer boolean types
-     * @param body Input boolean as post body
+     * @param [body] Input boolean as post body
      */
     public fakeOuterBooleanSerializeWithHttpInfo(body?: boolean, _options?: Configuration): Observable<HttpInfo<boolean>> {
         const requestContextPromise = this.requestFactory.fakeOuterBooleanSerialize(body, _options);
@@ -280,7 +280,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of outer boolean types
-     * @param body Input boolean as post body
+     * @param [body] Input boolean as post body
      */
     public fakeOuterBooleanSerialize(body?: boolean, _options?: Configuration): Observable<boolean> {
         return this.fakeOuterBooleanSerializeWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<boolean>) => apiResponse.data));
@@ -288,7 +288,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of object with outer number type
-     * @param outerComposite Input composite as post body
+     * @param [outerComposite] Input composite as post body
      */
     public fakeOuterCompositeSerializeWithHttpInfo(outerComposite?: OuterComposite, _options?: Configuration): Observable<HttpInfo<OuterComposite>> {
         const requestContextPromise = this.requestFactory.fakeOuterCompositeSerialize(outerComposite, _options);
@@ -311,7 +311,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of object with outer number type
-     * @param outerComposite Input composite as post body
+     * @param [outerComposite] Input composite as post body
      */
     public fakeOuterCompositeSerialize(outerComposite?: OuterComposite, _options?: Configuration): Observable<OuterComposite> {
         return this.fakeOuterCompositeSerializeWithHttpInfo(outerComposite, _options).pipe(map((apiResponse: HttpInfo<OuterComposite>) => apiResponse.data));
@@ -319,7 +319,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of outer number types
-     * @param body Input number as post body
+     * @param [body] Input number as post body
      */
     public fakeOuterNumberSerializeWithHttpInfo(body?: number, _options?: Configuration): Observable<HttpInfo<number>> {
         const requestContextPromise = this.requestFactory.fakeOuterNumberSerialize(body, _options);
@@ -342,7 +342,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of outer number types
-     * @param body Input number as post body
+     * @param [body] Input number as post body
      */
     public fakeOuterNumberSerialize(body?: number, _options?: Configuration): Observable<number> {
         return this.fakeOuterNumberSerializeWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<number>) => apiResponse.data));
@@ -350,7 +350,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of outer string types
-     * @param body Input string as post body
+     * @param [body] Input string as post body
      */
     public fakeOuterStringSerializeWithHttpInfo(body?: string, _options?: Configuration): Observable<HttpInfo<string>> {
         const requestContextPromise = this.requestFactory.fakeOuterStringSerialize(body, _options);
@@ -373,7 +373,7 @@ export class ObservableFakeApi {
 
     /**
      * Test serialization of outer string types
-     * @param body Input string as post body
+     * @param [body] Input string as post body
      */
     public fakeOuterStringSerialize(body?: string, _options?: Configuration): Observable<string> {
         return this.fakeOuterStringSerializeWithHttpInfo(body, _options).pipe(map((apiResponse: HttpInfo<string>) => apiResponse.data));
@@ -443,7 +443,7 @@ export class ObservableFakeApi {
 
     /**
      * For this test, the body for this request must reference a schema named `File`.
-     * @param fileSchemaTestClass 
+     * @param fileSchemaTestClass
      */
     public testBodyWithFileSchemaWithHttpInfo(fileSchemaTestClass: FileSchemaTestClass, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testBodyWithFileSchema(fileSchemaTestClass, _options);
@@ -466,15 +466,15 @@ export class ObservableFakeApi {
 
     /**
      * For this test, the body for this request must reference a schema named `File`.
-     * @param fileSchemaTestClass 
+     * @param fileSchemaTestClass
      */
     public testBodyWithFileSchema(fileSchemaTestClass: FileSchemaTestClass, _options?: Configuration): Observable<void> {
         return this.testBodyWithFileSchemaWithHttpInfo(fileSchemaTestClass, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
     }
 
     /**
-     * @param query 
-     * @param user 
+     * @param query
+     * @param user
      */
     public testBodyWithQueryParamsWithHttpInfo(query: string, user: User, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testBodyWithQueryParams(query, user, _options);
@@ -496,8 +496,8 @@ export class ObservableFakeApi {
     }
 
     /**
-     * @param query 
-     * @param user 
+     * @param query
+     * @param user
      */
     public testBodyWithQueryParams(query: string, user: User, _options?: Configuration): Observable<void> {
         return this.testBodyWithQueryParamsWithHttpInfo(query, user, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -543,16 +543,16 @@ export class ObservableFakeApi {
      * @param _double None
      * @param patternWithoutDelimiter None
      * @param _byte None
-     * @param integer None
-     * @param int32 None
-     * @param int64 None
-     * @param _float None
-     * @param string None
-     * @param binary None
-     * @param date None
-     * @param dateTime None
-     * @param password None
-     * @param callback None
+     * @param [integer] None
+     * @param [int32] None
+     * @param [int64] None
+     * @param [_float] None
+     * @param [string] None
+     * @param [binary] None
+     * @param [date] None
+     * @param [dateTime] None
+     * @param [password] None
+     * @param [callback] None
      */
     public testEndpointParametersWithHttpInfo(number: number, _double: number, patternWithoutDelimiter: string, _byte: string, integer?: number, int32?: number, int64?: number, _float?: number, string?: string, binary?: HttpFile, date?: string, dateTime?: Date, password?: string, callback?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, callback, _options);
@@ -580,16 +580,16 @@ export class ObservableFakeApi {
      * @param _double None
      * @param patternWithoutDelimiter None
      * @param _byte None
-     * @param integer None
-     * @param int32 None
-     * @param int64 None
-     * @param _float None
-     * @param string None
-     * @param binary None
-     * @param date None
-     * @param dateTime None
-     * @param password None
-     * @param callback None
+     * @param [integer] None
+     * @param [int32] None
+     * @param [int64] None
+     * @param [_float] None
+     * @param [string] None
+     * @param [binary] None
+     * @param [date] None
+     * @param [dateTime] None
+     * @param [password] None
+     * @param [callback] None
      */
     public testEndpointParameters(number: number, _double: number, patternWithoutDelimiter: string, _byte: string, integer?: number, int32?: number, int64?: number, _float?: number, string?: string, binary?: HttpFile, date?: string, dateTime?: Date, password?: string, callback?: string, _options?: Configuration): Observable<void> {
         return this.testEndpointParametersWithHttpInfo(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, callback, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -598,15 +598,15 @@ export class ObservableFakeApi {
     /**
      * To test enum parameters
      * To test enum parameters
-     * @param enumHeaderStringArray Header parameter enum test (string array)
-     * @param enumHeaderString Header parameter enum test (string)
-     * @param enumQueryStringArray Query parameter enum test (string array)
-     * @param enumQueryString Query parameter enum test (string)
-     * @param enumQueryInteger Query parameter enum test (double)
-     * @param enumQueryDouble Query parameter enum test (double)
-     * @param enumQueryModelArray 
-     * @param enumFormStringArray Form parameter enum test (string array)
-     * @param enumFormString Form parameter enum test (string)
+     * @param [enumHeaderStringArray] Header parameter enum test (string array)
+     * @param [enumHeaderString] Header parameter enum test (string)
+     * @param [enumQueryStringArray] Query parameter enum test (string array)
+     * @param [enumQueryString] Query parameter enum test (string)
+     * @param [enumQueryInteger] Query parameter enum test (double)
+     * @param [enumQueryDouble] Query parameter enum test (double)
+     * @param [enumQueryModelArray]
+     * @param [enumFormStringArray] Form parameter enum test (string array)
+     * @param [enumFormString] Form parameter enum test (string)
      */
     public testEnumParametersWithHttpInfo(enumHeaderStringArray?: Array<'>' | '$'>, enumHeaderString?: '_abc' | '-efg' | '(xyz)', enumQueryStringArray?: Array<'>' | '$'>, enumQueryString?: '_abc' | '-efg' | '(xyz)', enumQueryInteger?: 1 | -2, enumQueryDouble?: 1.1 | -1.2, enumQueryModelArray?: Array<EnumClass>, enumFormStringArray?: Array<string>, enumFormString?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString, _options);
@@ -630,15 +630,15 @@ export class ObservableFakeApi {
     /**
      * To test enum parameters
      * To test enum parameters
-     * @param enumHeaderStringArray Header parameter enum test (string array)
-     * @param enumHeaderString Header parameter enum test (string)
-     * @param enumQueryStringArray Query parameter enum test (string array)
-     * @param enumQueryString Query parameter enum test (string)
-     * @param enumQueryInteger Query parameter enum test (double)
-     * @param enumQueryDouble Query parameter enum test (double)
-     * @param enumQueryModelArray 
-     * @param enumFormStringArray Form parameter enum test (string array)
-     * @param enumFormString Form parameter enum test (string)
+     * @param [enumHeaderStringArray] Header parameter enum test (string array)
+     * @param [enumHeaderString] Header parameter enum test (string)
+     * @param [enumQueryStringArray] Query parameter enum test (string array)
+     * @param [enumQueryString] Query parameter enum test (string)
+     * @param [enumQueryInteger] Query parameter enum test (double)
+     * @param [enumQueryDouble] Query parameter enum test (double)
+     * @param [enumQueryModelArray]
+     * @param [enumFormStringArray] Form parameter enum test (string array)
+     * @param [enumFormString] Form parameter enum test (string)
      */
     public testEnumParameters(enumHeaderStringArray?: Array<'>' | '$'>, enumHeaderString?: '_abc' | '-efg' | '(xyz)', enumQueryStringArray?: Array<'>' | '$'>, enumQueryString?: '_abc' | '-efg' | '(xyz)', enumQueryInteger?: 1 | -2, enumQueryDouble?: 1.1 | -1.2, enumQueryModelArray?: Array<EnumClass>, enumFormStringArray?: Array<string>, enumFormString?: string, _options?: Configuration): Observable<void> {
         return this.testEnumParametersWithHttpInfo(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -650,9 +650,9 @@ export class ObservableFakeApi {
      * @param requiredStringGroup Required String in group parameters
      * @param requiredBooleanGroup Required Boolean in group parameters
      * @param requiredInt64Group Required Integer in group parameters
-     * @param stringGroup String in group parameters
-     * @param booleanGroup Boolean in group parameters
-     * @param int64Group Integer in group parameters
+     * @param [stringGroup] String in group parameters
+     * @param [booleanGroup] Boolean in group parameters
+     * @param [int64Group] Integer in group parameters
      */
     public testGroupParametersWithHttpInfo(requiredStringGroup: number, requiredBooleanGroup: boolean, requiredInt64Group: number, stringGroup?: number, booleanGroup?: boolean, int64Group?: number, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testGroupParameters(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group, _options);
@@ -679,9 +679,9 @@ export class ObservableFakeApi {
      * @param requiredStringGroup Required String in group parameters
      * @param requiredBooleanGroup Required Boolean in group parameters
      * @param requiredInt64Group Required Integer in group parameters
-     * @param stringGroup String in group parameters
-     * @param booleanGroup Boolean in group parameters
-     * @param int64Group Integer in group parameters
+     * @param [stringGroup] String in group parameters
+     * @param [booleanGroup] Boolean in group parameters
+     * @param [int64Group] Integer in group parameters
      */
     public testGroupParameters(requiredStringGroup: number, requiredBooleanGroup: boolean, requiredInt64Group: number, stringGroup?: number, booleanGroup?: boolean, int64Group?: number, _options?: Configuration): Observable<void> {
         return this.testGroupParametersWithHttpInfo(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -757,13 +757,13 @@ export class ObservableFakeApi {
 
     /**
      * To test the collection format in query parameters
-     * @param pipe 
-     * @param ioutil 
-     * @param http 
-     * @param url 
-     * @param context 
-     * @param allowEmpty 
-     * @param language 
+     * @param pipe
+     * @param ioutil
+     * @param http
+     * @param url
+     * @param context
+     * @param allowEmpty
+     * @param [language]
      */
     public testQueryParameterCollectionFormatWithHttpInfo(pipe: Array<string>, ioutil: Array<string>, http: Array<string>, url: Array<string>, context: Array<string>, allowEmpty: string, language?: { [key: string]: string; }, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.testQueryParameterCollectionFormat(pipe, ioutil, http, url, context, allowEmpty, language, _options);
@@ -786,13 +786,13 @@ export class ObservableFakeApi {
 
     /**
      * To test the collection format in query parameters
-     * @param pipe 
-     * @param ioutil 
-     * @param http 
-     * @param url 
-     * @param context 
-     * @param allowEmpty 
-     * @param language 
+     * @param pipe
+     * @param ioutil
+     * @param http
+     * @param url
+     * @param context
+     * @param allowEmpty
+     * @param [language]
      */
     public testQueryParameterCollectionFormat(pipe: Array<string>, ioutil: Array<string>, http: Array<string>, url: Array<string>, context: Array<string>, allowEmpty: string, language?: { [key: string]: string; }, _options?: Configuration): Observable<void> {
         return this.testQueryParameterCollectionFormatWithHttpInfo(pipe, ioutil, http, url, context, allowEmpty, language, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -904,7 +904,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -929,7 +929,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -1071,8 +1071,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -1097,8 +1097,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -1108,8 +1108,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -1134,8 +1134,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
@@ -1146,7 +1146,7 @@ export class ObservablePetApi {
      * uploads an image (required)
      * @param petId ID of pet to update
      * @param requiredFile file to upload
-     * @param additionalMetadata Additional data to pass to server
+     * @param [additionalMetadata] Additional data to pass to server
      */
     public uploadFileWithRequiredFileWithHttpInfo(petId: number, requiredFile: HttpFile, additionalMetadata?: string, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFileWithRequiredFile(petId, requiredFile, additionalMetadata, _options);
@@ -1172,7 +1172,7 @@ export class ObservablePetApi {
      * uploads an image (required)
      * @param petId ID of pet to update
      * @param requiredFile file to upload
-     * @param additionalMetadata Additional data to pass to server
+     * @param [additionalMetadata] Additional data to pass to server
      */
     public uploadFileWithRequiredFile(petId: number, requiredFile: HttpFile, additionalMetadata?: string, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithRequiredFileWithHttpInfo(petId, requiredFile, additionalMetadata, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/explode-query/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/explode-query/types/PromiseAPI.ts
index 657d0b600d2..68c347230b9 100644
--- a/samples/openapi3/client/petstore/typescript/builds/explode-query/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/explode-query/types/PromiseAPI.ts
@@ -169,8 +169,8 @@ export class PromiseFakeApi {
     /**
      * test http signature authentication
      * @param pet Pet object that needs to be added to the store
-     * @param query1 query parameter
-     * @param header1 header parameter
+     * @param [query1] query parameter
+     * @param [header1] header parameter
      */
     public fakeHttpSignatureTestWithHttpInfo(pet: Pet, query1?: string, header1?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.fakeHttpSignatureTestWithHttpInfo(pet, query1, header1, _options);
@@ -180,8 +180,8 @@ export class PromiseFakeApi {
     /**
      * test http signature authentication
      * @param pet Pet object that needs to be added to the store
-     * @param query1 query parameter
-     * @param header1 header parameter
+     * @param [query1] query parameter
+     * @param [header1] header parameter
      */
     public fakeHttpSignatureTest(pet: Pet, query1?: string, header1?: string, _options?: Configuration): Promise<void> {
         const result = this.api.fakeHttpSignatureTest(pet, query1, header1, _options);
@@ -190,7 +190,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of outer boolean types
-     * @param body Input boolean as post body
+     * @param [body] Input boolean as post body
      */
     public fakeOuterBooleanSerializeWithHttpInfo(body?: boolean, _options?: Configuration): Promise<HttpInfo<boolean>> {
         const result = this.api.fakeOuterBooleanSerializeWithHttpInfo(body, _options);
@@ -199,7 +199,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of outer boolean types
-     * @param body Input boolean as post body
+     * @param [body] Input boolean as post body
      */
     public fakeOuterBooleanSerialize(body?: boolean, _options?: Configuration): Promise<boolean> {
         const result = this.api.fakeOuterBooleanSerialize(body, _options);
@@ -208,7 +208,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of object with outer number type
-     * @param outerComposite Input composite as post body
+     * @param [outerComposite] Input composite as post body
      */
     public fakeOuterCompositeSerializeWithHttpInfo(outerComposite?: OuterComposite, _options?: Configuration): Promise<HttpInfo<OuterComposite>> {
         const result = this.api.fakeOuterCompositeSerializeWithHttpInfo(outerComposite, _options);
@@ -217,7 +217,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of object with outer number type
-     * @param outerComposite Input composite as post body
+     * @param [outerComposite] Input composite as post body
      */
     public fakeOuterCompositeSerialize(outerComposite?: OuterComposite, _options?: Configuration): Promise<OuterComposite> {
         const result = this.api.fakeOuterCompositeSerialize(outerComposite, _options);
@@ -226,7 +226,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of outer number types
-     * @param body Input number as post body
+     * @param [body] Input number as post body
      */
     public fakeOuterNumberSerializeWithHttpInfo(body?: number, _options?: Configuration): Promise<HttpInfo<number>> {
         const result = this.api.fakeOuterNumberSerializeWithHttpInfo(body, _options);
@@ -235,7 +235,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of outer number types
-     * @param body Input number as post body
+     * @param [body] Input number as post body
      */
     public fakeOuterNumberSerialize(body?: number, _options?: Configuration): Promise<number> {
         const result = this.api.fakeOuterNumberSerialize(body, _options);
@@ -244,7 +244,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of outer string types
-     * @param body Input string as post body
+     * @param [body] Input string as post body
      */
     public fakeOuterStringSerializeWithHttpInfo(body?: string, _options?: Configuration): Promise<HttpInfo<string>> {
         const result = this.api.fakeOuterStringSerializeWithHttpInfo(body, _options);
@@ -253,7 +253,7 @@ export class PromiseFakeApi {
 
     /**
      * Test serialization of outer string types
-     * @param body Input string as post body
+     * @param [body] Input string as post body
      */
     public fakeOuterStringSerialize(body?: string, _options?: Configuration): Promise<string> {
         const result = this.api.fakeOuterStringSerialize(body, _options);
@@ -298,7 +298,7 @@ export class PromiseFakeApi {
 
     /**
      * For this test, the body for this request must reference a schema named `File`.
-     * @param fileSchemaTestClass 
+     * @param fileSchemaTestClass
      */
     public testBodyWithFileSchemaWithHttpInfo(fileSchemaTestClass: FileSchemaTestClass, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testBodyWithFileSchemaWithHttpInfo(fileSchemaTestClass, _options);
@@ -307,7 +307,7 @@ export class PromiseFakeApi {
 
     /**
      * For this test, the body for this request must reference a schema named `File`.
-     * @param fileSchemaTestClass 
+     * @param fileSchemaTestClass
      */
     public testBodyWithFileSchema(fileSchemaTestClass: FileSchemaTestClass, _options?: Configuration): Promise<void> {
         const result = this.api.testBodyWithFileSchema(fileSchemaTestClass, _options);
@@ -315,8 +315,8 @@ export class PromiseFakeApi {
     }
 
     /**
-     * @param query 
-     * @param user 
+     * @param query
+     * @param user
      */
     public testBodyWithQueryParamsWithHttpInfo(query: string, user: User, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testBodyWithQueryParamsWithHttpInfo(query, user, _options);
@@ -324,8 +324,8 @@ export class PromiseFakeApi {
     }
 
     /**
-     * @param query 
-     * @param user 
+     * @param query
+     * @param user
      */
     public testBodyWithQueryParams(query: string, user: User, _options?: Configuration): Promise<void> {
         const result = this.api.testBodyWithQueryParams(query, user, _options);
@@ -359,16 +359,16 @@ export class PromiseFakeApi {
      * @param _double None
      * @param patternWithoutDelimiter None
      * @param _byte None
-     * @param integer None
-     * @param int32 None
-     * @param int64 None
-     * @param _float None
-     * @param string None
-     * @param binary None
-     * @param date None
-     * @param dateTime None
-     * @param password None
-     * @param callback None
+     * @param [integer] None
+     * @param [int32] None
+     * @param [int64] None
+     * @param [_float] None
+     * @param [string] None
+     * @param [binary] None
+     * @param [date] None
+     * @param [dateTime] None
+     * @param [password] None
+     * @param [callback] None
      */
     public testEndpointParametersWithHttpInfo(number: number, _double: number, patternWithoutDelimiter: string, _byte: string, integer?: number, int32?: number, int64?: number, _float?: number, string?: string, binary?: HttpFile, date?: string, dateTime?: Date, password?: string, callback?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEndpointParametersWithHttpInfo(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, callback, _options);
@@ -382,16 +382,16 @@ export class PromiseFakeApi {
      * @param _double None
      * @param patternWithoutDelimiter None
      * @param _byte None
-     * @param integer None
-     * @param int32 None
-     * @param int64 None
-     * @param _float None
-     * @param string None
-     * @param binary None
-     * @param date None
-     * @param dateTime None
-     * @param password None
-     * @param callback None
+     * @param [integer] None
+     * @param [int32] None
+     * @param [int64] None
+     * @param [_float] None
+     * @param [string] None
+     * @param [binary] None
+     * @param [date] None
+     * @param [dateTime] None
+     * @param [password] None
+     * @param [callback] None
      */
     public testEndpointParameters(number: number, _double: number, patternWithoutDelimiter: string, _byte: string, integer?: number, int32?: number, int64?: number, _float?: number, string?: string, binary?: HttpFile, date?: string, dateTime?: Date, password?: string, callback?: string, _options?: Configuration): Promise<void> {
         const result = this.api.testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, callback, _options);
@@ -401,15 +401,15 @@ export class PromiseFakeApi {
     /**
      * To test enum parameters
      * To test enum parameters
-     * @param enumHeaderStringArray Header parameter enum test (string array)
-     * @param enumHeaderString Header parameter enum test (string)
-     * @param enumQueryStringArray Query parameter enum test (string array)
-     * @param enumQueryString Query parameter enum test (string)
-     * @param enumQueryInteger Query parameter enum test (double)
-     * @param enumQueryDouble Query parameter enum test (double)
-     * @param enumQueryModelArray 
-     * @param enumFormStringArray Form parameter enum test (string array)
-     * @param enumFormString Form parameter enum test (string)
+     * @param [enumHeaderStringArray] Header parameter enum test (string array)
+     * @param [enumHeaderString] Header parameter enum test (string)
+     * @param [enumQueryStringArray] Query parameter enum test (string array)
+     * @param [enumQueryString] Query parameter enum test (string)
+     * @param [enumQueryInteger] Query parameter enum test (double)
+     * @param [enumQueryDouble] Query parameter enum test (double)
+     * @param [enumQueryModelArray]
+     * @param [enumFormStringArray] Form parameter enum test (string array)
+     * @param [enumFormString] Form parameter enum test (string)
      */
     public testEnumParametersWithHttpInfo(enumHeaderStringArray?: Array<'>' | '$'>, enumHeaderString?: '_abc' | '-efg' | '(xyz)', enumQueryStringArray?: Array<'>' | '$'>, enumQueryString?: '_abc' | '-efg' | '(xyz)', enumQueryInteger?: 1 | -2, enumQueryDouble?: 1.1 | -1.2, enumQueryModelArray?: Array<EnumClass>, enumFormStringArray?: Array<string>, enumFormString?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testEnumParametersWithHttpInfo(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString, _options);
@@ -419,15 +419,15 @@ export class PromiseFakeApi {
     /**
      * To test enum parameters
      * To test enum parameters
-     * @param enumHeaderStringArray Header parameter enum test (string array)
-     * @param enumHeaderString Header parameter enum test (string)
-     * @param enumQueryStringArray Query parameter enum test (string array)
-     * @param enumQueryString Query parameter enum test (string)
-     * @param enumQueryInteger Query parameter enum test (double)
-     * @param enumQueryDouble Query parameter enum test (double)
-     * @param enumQueryModelArray 
-     * @param enumFormStringArray Form parameter enum test (string array)
-     * @param enumFormString Form parameter enum test (string)
+     * @param [enumHeaderStringArray] Header parameter enum test (string array)
+     * @param [enumHeaderString] Header parameter enum test (string)
+     * @param [enumQueryStringArray] Query parameter enum test (string array)
+     * @param [enumQueryString] Query parameter enum test (string)
+     * @param [enumQueryInteger] Query parameter enum test (double)
+     * @param [enumQueryDouble] Query parameter enum test (double)
+     * @param [enumQueryModelArray]
+     * @param [enumFormStringArray] Form parameter enum test (string array)
+     * @param [enumFormString] Form parameter enum test (string)
      */
     public testEnumParameters(enumHeaderStringArray?: Array<'>' | '$'>, enumHeaderString?: '_abc' | '-efg' | '(xyz)', enumQueryStringArray?: Array<'>' | '$'>, enumQueryString?: '_abc' | '-efg' | '(xyz)', enumQueryInteger?: 1 | -2, enumQueryDouble?: 1.1 | -1.2, enumQueryModelArray?: Array<EnumClass>, enumFormStringArray?: Array<string>, enumFormString?: string, _options?: Configuration): Promise<void> {
         const result = this.api.testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumQueryModelArray, enumFormStringArray, enumFormString, _options);
@@ -440,9 +440,9 @@ export class PromiseFakeApi {
      * @param requiredStringGroup Required String in group parameters
      * @param requiredBooleanGroup Required Boolean in group parameters
      * @param requiredInt64Group Required Integer in group parameters
-     * @param stringGroup String in group parameters
-     * @param booleanGroup Boolean in group parameters
-     * @param int64Group Integer in group parameters
+     * @param [stringGroup] String in group parameters
+     * @param [booleanGroup] Boolean in group parameters
+     * @param [int64Group] Integer in group parameters
      */
     public testGroupParametersWithHttpInfo(requiredStringGroup: number, requiredBooleanGroup: boolean, requiredInt64Group: number, stringGroup?: number, booleanGroup?: boolean, int64Group?: number, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testGroupParametersWithHttpInfo(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group, _options);
@@ -455,9 +455,9 @@ export class PromiseFakeApi {
      * @param requiredStringGroup Required String in group parameters
      * @param requiredBooleanGroup Required Boolean in group parameters
      * @param requiredInt64Group Required Integer in group parameters
-     * @param stringGroup String in group parameters
-     * @param booleanGroup Boolean in group parameters
-     * @param int64Group Integer in group parameters
+     * @param [stringGroup] String in group parameters
+     * @param [booleanGroup] Boolean in group parameters
+     * @param [int64Group] Integer in group parameters
      */
     public testGroupParameters(requiredStringGroup: number, requiredBooleanGroup: boolean, requiredInt64Group: number, stringGroup?: number, booleanGroup?: boolean, int64Group?: number, _options?: Configuration): Promise<void> {
         const result = this.api.testGroupParameters(requiredStringGroup, requiredBooleanGroup, requiredInt64Group, stringGroup, booleanGroup, int64Group, _options);
@@ -508,13 +508,13 @@ export class PromiseFakeApi {
 
     /**
      * To test the collection format in query parameters
-     * @param pipe 
-     * @param ioutil 
-     * @param http 
-     * @param url 
-     * @param context 
-     * @param allowEmpty 
-     * @param language 
+     * @param pipe
+     * @param ioutil
+     * @param http
+     * @param url
+     * @param context
+     * @param allowEmpty
+     * @param [language]
      */
     public testQueryParameterCollectionFormatWithHttpInfo(pipe: Array<string>, ioutil: Array<string>, http: Array<string>, url: Array<string>, context: Array<string>, allowEmpty: string, language?: { [key: string]: string; }, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.testQueryParameterCollectionFormatWithHttpInfo(pipe, ioutil, http, url, context, allowEmpty, language, _options);
@@ -523,13 +523,13 @@ export class PromiseFakeApi {
 
     /**
      * To test the collection format in query parameters
-     * @param pipe 
-     * @param ioutil 
-     * @param http 
-     * @param url 
-     * @param context 
-     * @param allowEmpty 
-     * @param language 
+     * @param pipe
+     * @param ioutil
+     * @param http
+     * @param url
+     * @param context
+     * @param allowEmpty
+     * @param [language]
      */
     public testQueryParameterCollectionFormat(pipe: Array<string>, ioutil: Array<string>, http: Array<string>, url: Array<string>, context: Array<string>, allowEmpty: string, language?: { [key: string]: string; }, _options?: Configuration): Promise<void> {
         const result = this.api.testQueryParameterCollectionFormat(pipe, ioutil, http, url, context, allowEmpty, language, _options);
@@ -618,7 +618,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -629,7 +629,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -720,8 +720,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -732,8 +732,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -744,8 +744,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -756,8 +756,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);
@@ -769,7 +769,7 @@ export class PromisePetApi {
      * uploads an image (required)
      * @param petId ID of pet to update
      * @param requiredFile file to upload
-     * @param additionalMetadata Additional data to pass to server
+     * @param [additionalMetadata] Additional data to pass to server
      */
     public uploadFileWithRequiredFileWithHttpInfo(petId: number, requiredFile: HttpFile, additionalMetadata?: string, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithRequiredFileWithHttpInfo(petId, requiredFile, additionalMetadata, _options);
@@ -781,7 +781,7 @@ export class PromisePetApi {
      * uploads an image (required)
      * @param petId ID of pet to update
      * @param requiredFile file to upload
-     * @param additionalMetadata Additional data to pass to server
+     * @param [additionalMetadata] Additional data to pass to server
      */
     public uploadFileWithRequiredFile(petId: number, requiredFile: HttpFile, additionalMetadata?: string, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFileWithRequiredFile(petId, requiredFile, additionalMetadata, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObjectParamAPI.ts
index e3fe52eef28..568cc5c507b 100644
--- a/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObjectParamAPI.ts
@@ -23,12 +23,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -38,6 +40,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -47,6 +50,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -56,6 +60,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -74,18 +79,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -95,18 +103,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -272,6 +283,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -284,6 +296,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -413,6 +428,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -422,6 +438,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -431,12 +448,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -449,6 +468,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObservableAPI.ts
index 90753fbf2df..a749f28cac1 100644
--- a/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/inversify/types/ObservableAPI.ts
@@ -67,7 +67,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -92,7 +92,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -234,8 +234,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -260,8 +260,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -271,8 +271,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -297,8 +297,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/inversify/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/inversify/types/PromiseAPI.ts
index a210e0a05d4..cd43df46623 100644
--- a/samples/openapi3/client/petstore/typescript/builds/inversify/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/inversify/types/PromiseAPI.ts
@@ -50,7 +50,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -61,7 +61,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -152,8 +152,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -164,8 +164,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -176,8 +176,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -188,8 +188,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObjectParamAPI.ts
index e3fe52eef28..568cc5c507b 100644
--- a/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObjectParamAPI.ts
@@ -23,12 +23,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -38,6 +40,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -47,6 +50,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -56,6 +60,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -74,18 +79,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -95,18 +103,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -272,6 +283,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -284,6 +296,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -413,6 +428,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -422,6 +438,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -431,12 +448,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -449,6 +468,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObservableAPI.ts
index 138bcd33039..f344144c8b3 100644
--- a/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/jquery/types/ObservableAPI.ts
@@ -62,7 +62,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -87,7 +87,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -229,8 +229,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -255,8 +255,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -266,8 +266,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -292,8 +292,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/jquery/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/jquery/types/PromiseAPI.ts
index 189962536f9..55af604f465 100644
--- a/samples/openapi3/client/petstore/typescript/builds/jquery/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/jquery/types/PromiseAPI.ts
@@ -45,7 +45,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -56,7 +56,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -147,8 +147,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -159,8 +159,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -171,8 +171,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -183,8 +183,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);
diff --git a/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObjectParamAPI.ts b/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObjectParamAPI.ts
index e3fe52eef28..568cc5c507b 100644
--- a/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObjectParamAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObjectParamAPI.ts
@@ -23,12 +23,14 @@ export interface PetApiAddPetRequest {
 export interface PetApiDeletePetRequest {
     /**
      * Pet id to delete
+     * Defaults to: undefined
      * @type number
      * @memberof PetApideletePet
      */
     petId: number
     /**
      * 
+     * Defaults to: undefined
      * @type string
      * @memberof PetApideletePet
      */
@@ -38,6 +40,7 @@ export interface PetApiDeletePetRequest {
 export interface PetApiFindPetsByStatusRequest {
     /**
      * Status values that need to be considered for filter
+     * Defaults to: undefined
      * @type Array&lt;&#39;available&#39; | &#39;pending&#39; | &#39;sold&#39;&gt;
      * @memberof PetApifindPetsByStatus
      */
@@ -47,6 +50,7 @@ export interface PetApiFindPetsByStatusRequest {
 export interface PetApiFindPetsByTagsRequest {
     /**
      * Tags to filter by
+     * Defaults to: undefined
      * @type Array&lt;string&gt;
      * @memberof PetApifindPetsByTags
      */
@@ -56,6 +60,7 @@ export interface PetApiFindPetsByTagsRequest {
 export interface PetApiGetPetByIdRequest {
     /**
      * ID of pet to return
+     * Defaults to: undefined
      * @type number
      * @memberof PetApigetPetById
      */
@@ -74,18 +79,21 @@ export interface PetApiUpdatePetRequest {
 export interface PetApiUpdatePetWithFormRequest {
     /**
      * ID of pet that needs to be updated
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiupdatePetWithForm
      */
     petId: number
     /**
      * Updated name of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
     name?: string
     /**
      * Updated status of the pet
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiupdatePetWithForm
      */
@@ -95,18 +103,21 @@ export interface PetApiUpdatePetWithFormRequest {
 export interface PetApiUploadFileRequest {
     /**
      * ID of pet to update
+     * Defaults to: undefined
      * @type number
      * @memberof PetApiuploadFile
      */
     petId: number
     /**
      * Additional data to pass to server
+     * Defaults to: undefined
      * @type string
      * @memberof PetApiuploadFile
      */
     additionalMetadata?: string
     /**
      * file to upload
+     * Defaults to: undefined
      * @type HttpFile
      * @memberof PetApiuploadFile
      */
@@ -272,6 +283,7 @@ import { StoreApiRequestFactory, StoreApiResponseProcessor} from "../apis/StoreA
 export interface StoreApiDeleteOrderRequest {
     /**
      * ID of the order that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof StoreApideleteOrder
      */
@@ -284,6 +296,9 @@ export interface StoreApiGetInventoryRequest {
 export interface StoreApiGetOrderByIdRequest {
     /**
      * ID of pet that needs to be fetched
+     * Minimum: 1
+     * Maximum: 5
+     * Defaults to: undefined
      * @type number
      * @memberof StoreApigetOrderById
      */
@@ -413,6 +428,7 @@ export interface UserApiCreateUsersWithListInputRequest {
 export interface UserApiDeleteUserRequest {
     /**
      * The name that needs to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApideleteUser
      */
@@ -422,6 +438,7 @@ export interface UserApiDeleteUserRequest {
 export interface UserApiGetUserByNameRequest {
     /**
      * The name that needs to be fetched. Use user1 for testing.
+     * Defaults to: undefined
      * @type string
      * @memberof UserApigetUserByName
      */
@@ -431,12 +448,14 @@ export interface UserApiGetUserByNameRequest {
 export interface UserApiLoginUserRequest {
     /**
      * The user name for login
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
     username: string
     /**
      * The password for login in clear text
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiloginUser
      */
@@ -449,6 +468,7 @@ export interface UserApiLogoutUserRequest {
 export interface UserApiUpdateUserRequest {
     /**
      * name that need to be deleted
+     * Defaults to: undefined
      * @type string
      * @memberof UserApiupdateUser
      */
diff --git a/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObservableAPI.ts b/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObservableAPI.ts
index 138bcd33039..f344144c8b3 100644
--- a/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObservableAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/object_params/types/ObservableAPI.ts
@@ -62,7 +62,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.deletePet(petId, apiKey, _options);
@@ -87,7 +87,7 @@ export class ObservablePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Observable<void> {
         return this.deletePetWithHttpInfo(petId, apiKey, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -229,8 +229,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Observable<HttpInfo<void>> {
         const requestContextPromise = this.requestFactory.updatePetWithForm(petId, name, status, _options);
@@ -255,8 +255,8 @@ export class ObservablePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Observable<void> {
         return this.updatePetWithFormWithHttpInfo(petId, name, status, _options).pipe(map((apiResponse: HttpInfo<void>) => apiResponse.data));
@@ -266,8 +266,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<HttpInfo<ApiResponse>> {
         const requestContextPromise = this.requestFactory.uploadFile(petId, additionalMetadata, file, _options);
@@ -292,8 +292,8 @@ export class ObservablePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Observable<ApiResponse> {
         return this.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options).pipe(map((apiResponse: HttpInfo<ApiResponse>) => apiResponse.data));
diff --git a/samples/openapi3/client/petstore/typescript/builds/object_params/types/PromiseAPI.ts b/samples/openapi3/client/petstore/typescript/builds/object_params/types/PromiseAPI.ts
index 189962536f9..55af604f465 100644
--- a/samples/openapi3/client/petstore/typescript/builds/object_params/types/PromiseAPI.ts
+++ b/samples/openapi3/client/petstore/typescript/builds/object_params/types/PromiseAPI.ts
@@ -45,7 +45,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePetWithHttpInfo(petId: number, apiKey?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.deletePetWithHttpInfo(petId, apiKey, _options);
@@ -56,7 +56,7 @@ export class PromisePetApi {
      * 
      * Deletes a pet
      * @param petId Pet id to delete
-     * @param apiKey 
+     * @param [apiKey]
      */
     public deletePet(petId: number, apiKey?: string, _options?: Configuration): Promise<void> {
         const result = this.api.deletePet(petId, apiKey, _options);
@@ -147,8 +147,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithFormWithHttpInfo(petId: number, name?: string, status?: string, _options?: Configuration): Promise<HttpInfo<void>> {
         const result = this.api.updatePetWithFormWithHttpInfo(petId, name, status, _options);
@@ -159,8 +159,8 @@ export class PromisePetApi {
      * 
      * Updates a pet in the store with form data
      * @param petId ID of pet that needs to be updated
-     * @param name Updated name of the pet
-     * @param status Updated status of the pet
+     * @param [name] Updated name of the pet
+     * @param [status] Updated status of the pet
      */
     public updatePetWithForm(petId: number, name?: string, status?: string, _options?: Configuration): Promise<void> {
         const result = this.api.updatePetWithForm(petId, name, status, _options);
@@ -171,8 +171,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFileWithHttpInfo(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<HttpInfo<ApiResponse>> {
         const result = this.api.uploadFileWithHttpInfo(petId, additionalMetadata, file, _options);
@@ -183,8 +183,8 @@ export class PromisePetApi {
      * 
      * uploads an image
      * @param petId ID of pet to update
-     * @param additionalMetadata Additional data to pass to server
-     * @param file file to upload
+     * @param [additionalMetadata] Additional data to pass to server
+     * @param [file] file to upload
      */
     public uploadFile(petId: number, additionalMetadata?: string, file?: HttpFile, _options?: Configuration): Promise<ApiResponse> {
         const result = this.api.uploadFile(petId, additionalMetadata, file, _options);