docs: public Observable<OperationStatus> updateSettingsAsync(UUID appId, UpdateSettingsOptionalParameter updateSettingsOptionalParameter) {
          return updateSettingsWithServiceResponseAsync(appId, updateSettingsOptionalParameter).map(new Func1<ServiceResponse<OperationStatus>, OperationStatus>() {
              @Override
              public OperationStatus call(ServiceResponse<OperationStatus> response) {
                  return response.body();
              }
          });
      }