docs: public Observable<SiteSealInner> retrieveSiteSealAsync(String resourceGroupName, String certificateOrderName, SiteSealRequest siteSealRequest) {
          return retrieveSiteSealWithServiceResponseAsync(resourceGroupName, certificateOrderName, siteSealRequest).map(new Func1<ServiceResponse<SiteSealInner>, SiteSealInner>() {
              @Override
              public SiteSealInner call(ServiceResponse<SiteSealInner> response) {
                  return response.body();
              }
          });
      }