code: def get_stream(self, stream):
          
          path = '/archive/{}/streams/{}'.format(self._instance, stream)
          response = self._client.get_proto(path=path)
          message = archive_pb2.StreamInfo()
          message.ParseFromString(response.content)
          return Stream(message)
docs: Gets a single stream.
  
          :param str stream: The name of the stream.
          :rtype: .Stream