docs: public Observable<AppServiceCertificateResourceInner> updateCertificateAsync(String resourceGroupName, String certificateOrderName, String name, AppServiceCertificatePatchResource keyVaultCertificate) {
          return updateCertificateWithServiceResponseAsync(resourceGroupName, certificateOrderName, name, keyVaultCertificate).map(new Func1<ServiceResponse<AppServiceCertificateResourceInner>, AppServiceCertificateResourceInner>() {
              @Override
              public AppServiceCertificateResourceInner call(ServiceResponse<AppServiceCertificateResourceInner> response) {
                  return response.body();
              }
          });
      }