private <T> PubsubFuture<T> put(final String operation, final String path, final Object payload,
                                  final ResponseReader<T> responseReader) {
    return request(operation, HttpMethod.PUT, path, payload, responseReader);
  }
private < T > PubsubFuture < T > put ( final String operation , final String path , final Object payload , final ResponseReader < T > responseReader ) { return request ( operation , HttpMethod . PUT , path , payload , responseReader ) ; }
Make a PUT request.