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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_sendback(self, uuid, key):
 """ Return function for sending progress messages back to original caller. Args: uuid (str):
 UUID of the received message. key (str):
 Routing key. Returns: fn reference: Reference to function which takes only one data \ argument. """

        def send_back_callback(data):
            self.sendResponse(
                serializers.serialize(data),
                uuid,
                key
            )

        return send_back_callback