Get the next response from the stream.

        Returns:
            protobuf.Message: A single response from the stream.

def next(self):
        """Get the next response from the stream.

        Returns:
            protobuf.Message: A single response from the stream.
        """
        try:
            return six.next(self._wrapped)
        except grpc.RpcError as exc:
            six.raise_from(exceptions.from_grpc_error(exc), exc)