diff --git a/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache b/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache
index 62103f4c7db0..c986813ab531 100644
--- a/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache
@@ -223,7 +223,7 @@ export const {{classname}}Fp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        {{nickname}}({{#allParams}}{{paramName}}{{^required}}?{{/required}}: {{{dataType}}}, {{/allParams}}options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}Response{{/returnType}}> {
+        {{nickname}}({{#allParams}}{{paramName}}{{^required}}?{{/required}}: {{{dataType}}}, {{/allParams}}options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}}> {
             const localVarAxiosArgs = {{classname}}AxiosParamCreator(configuration).{{nickname}}({{#allParams}}{{paramName}}, {{/allParams}}options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/default/api.ts b/samples/client/petstore/typescript-axios/builds/default/api.ts
index a74fbd67faeb..168ead95816e 100644
--- a/samples/client/petstore/typescript-axios/builds/default/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/default/api.ts
@@ -663,7 +663,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).addPet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -678,7 +678,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).deletePet(petId, apiKey, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -734,7 +734,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -750,7 +750,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePetWithForm(petId, name, status, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1148,7 +1148,7 @@ export const StoreApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = StoreApiAxiosParamCreator(configuration).deleteOrder(orderId, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1630,7 +1630,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUser(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1644,7 +1644,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithArrayInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1658,7 +1658,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithListInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1672,7 +1672,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).deleteUser(username, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1714,7 +1714,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).logoutUser(options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1729,7 +1729,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).updateUser(username, body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/es6-target/api.ts b/samples/client/petstore/typescript-axios/builds/es6-target/api.ts
index a74fbd67faeb..168ead95816e 100644
--- a/samples/client/petstore/typescript-axios/builds/es6-target/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/es6-target/api.ts
@@ -663,7 +663,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).addPet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -678,7 +678,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).deletePet(petId, apiKey, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -734,7 +734,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -750,7 +750,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePetWithForm(petId, name, status, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1148,7 +1148,7 @@ export const StoreApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = StoreApiAxiosParamCreator(configuration).deleteOrder(orderId, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1630,7 +1630,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUser(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1644,7 +1644,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithArrayInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1658,7 +1658,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithListInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1672,7 +1672,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).deleteUser(username, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1714,7 +1714,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).logoutUser(options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1729,7 +1729,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).updateUser(username, body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts b/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts
index 8414cbc351d1..d9373c1b7571 100644
--- a/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-complex-headers/api.ts
@@ -714,7 +714,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        addPet(pet: Pet, header1?: Pet, header2?: Array<Pet>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        addPet(pet: Pet, header1?: Pet, header2?: Array<Pet>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).addPet(pet, header1, header2, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -729,7 +729,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).deletePet(petId, apiKey, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -785,7 +785,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePet(pet: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePet(pet: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePet(pet, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -801,7 +801,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePetWithForm(petId, name, status, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1203,7 +1203,7 @@ export const StoreApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = StoreApiAxiosParamCreator(configuration).deleteOrder(orderId, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1685,7 +1685,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUser(user: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUser(user: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUser(user, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1699,7 +1699,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithArrayInput(user: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithArrayInput(user: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithArrayInput(user, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1713,7 +1713,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithListInput(user: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithListInput(user: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithListInput(user, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1727,7 +1727,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).deleteUser(username, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1769,7 +1769,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).logoutUser(options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1784,7 +1784,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updateUser(username: string, user: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updateUser(username: string, user: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).updateUser(username, user, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts b/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts
index 2e124df78073..fc658e7af099 100644
--- a/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-interfaces/api.ts
@@ -663,7 +663,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).addPet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -678,7 +678,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).deletePet(petId, apiKey, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -734,7 +734,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -750,7 +750,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePetWithForm(petId, name, status, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1241,7 +1241,7 @@ export const StoreApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = StoreApiAxiosParamCreator(configuration).deleteOrder(orderId, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1770,7 +1770,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUser(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1784,7 +1784,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithArrayInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1798,7 +1798,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithListInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1812,7 +1812,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).deleteUser(username, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1854,7 +1854,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).logoutUser(options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1869,7 +1869,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).updateUser(username, body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts
index 486d267caf23..2af9ca66ac57 100644
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/pet-api.ts
@@ -438,7 +438,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).addPet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -453,7 +453,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).deletePet(petId, apiKey, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -509,7 +509,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -525,7 +525,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePetWithForm(petId, name, status, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/store-api.ts b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/store-api.ts
index fde70168950e..b50c7a34ab36 100644
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/store-api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/store-api.ts
@@ -186,7 +186,7 @@ export const StoreApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = StoreApiAxiosParamCreator(configuration).deleteOrder(orderId, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/user-api.ts b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/user-api.ts
index d8ded5b31dfb..099f12fff0ef 100644
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/user-api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version-and-separate-models-and-api/api/another/level/user-api.ts
@@ -345,7 +345,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUser(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -359,7 +359,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithArrayInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -373,7 +373,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithListInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -387,7 +387,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).deleteUser(username, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -429,7 +429,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).logoutUser(options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -444,7 +444,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).updateUser(username, body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
diff --git a/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts b/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts
index a74fbd67faeb..168ead95816e 100644
--- a/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts
+++ b/samples/client/petstore/typescript-axios/builds/with-npm-version/api.ts
@@ -663,7 +663,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        addPet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).addPet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -678,7 +678,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deletePet(petId: number, apiKey?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).deletePet(petId, apiKey, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -734,7 +734,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePet(body: Pet, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePet(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -750,7 +750,7 @@ export const PetApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updatePetWithForm(petId: number, name?: string, status?: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = PetApiAxiosParamCreator(configuration).updatePetWithForm(petId, name, status, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1148,7 +1148,7 @@ export const StoreApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteOrder(orderId: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = StoreApiAxiosParamCreator(configuration).deleteOrder(orderId, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1630,7 +1630,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUser(body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUser(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1644,7 +1644,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithArrayInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithArrayInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1658,7 +1658,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        createUsersWithListInput(body: Array<User>, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).createUsersWithListInput(body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1672,7 +1672,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        deleteUser(username: string, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).deleteUser(username, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1714,7 +1714,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        logoutUser(options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).logoutUser(options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};
@@ -1729,7 +1729,7 @@ export const UserApiFp = function(configuration?: Configuration) {
          * @param {*} [options] Override http request option.
          * @throws {RequiredError}
          */
-        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<Response> {
+        updateUser(username: string, body: User, options?: any): (axios?: AxiosInstance, basePath?: string) => AxiosPromise<void> {
             const localVarAxiosArgs = UserApiAxiosParamCreator(configuration).updateUser(username, body, options);
             return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
                 const axiosRequestArgs = {...localVarAxiosArgs.options, url: basePath + localVarAxiosArgs.url};