code: public ApiResponse<PostUsers> postUsersWithHttpInfo() throws ApiException {
          com.squareup.okhttp.Call call = postUsersValidateBeforeCall(null, null);
          Type localVarReturnType = new TypeToken<PostUsers>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }
docs: Post users.
  postUsers
  @return ApiResponse&lt;PostUsers&gt;
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body