def __init__(self, toProduce, consumer):
        """
        @param toProduce: data to write
        @type toProduce: C{str}
        @param consumer: the consumer of data.
        @type consumer: C{IConsumer}
        """
        self.toProduce = toProduce
        self.consumer = consumer

        @param toProduce: data to write
        @type toProduce: C{str}
        @param consumer: the consumer of data.
        @type consumer: C{IConsumer}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_ftp.py