    def __init__(self, channel):
        """Constructor.

        Args:
            channel: A grpc.Channel.
        """
        self.Predict = channel.unary_unary(
                '/PipelineServices/Predict',
                request_serializer=service__pb2.Request.SerializeToString,
                response_deserializer=service__pb2.Response.FromString,
                )
Constructor.

Args:
channel: A grpc.Channel.
towhee/serve/grpc/service_pb2_grpc.py