docs: public ApiResponse<CreateUserSuccessResponse> addUserWithHttpInfo(AddUserData body) throws ApiException {
          com.squareup.okhttp.Call call = addUserValidateBeforeCall(body, null, null);
          Type localVarReturnType = new TypeToken<CreateUserSuccessResponse>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }