code: func (s *StreamReader) MetaData() (*EventResponse, error) {
  	url, _, err := s.client.GetMetadataURL(s.streamName)
  	if err != nil {
  		return nil, err
  	}
  	ev, _, err := s.client.GetEvent(url)
  	if err != nil {
  		return nil, err
  	}
  	return ev, nil
  }
docs: // MetaData gets the metadata for a stream.
  //
  // Stream metadata is retured as an EventResponse.
  //
  // For more information on stream metadata see:
  // http://docs.geteventstore.com/http-api/3.7.0/stream-metadata/