def proto_answer(self, requestID, netResult):
        """
        (internal) Got an answer to a previously sent message.

        Look up the appropriate callback and call it.

        @param requestID: The request ID.
        @param netResult: The answer.
        """
        d = self.waitingForAnswers[requestID]
        del self.waitingForAnswers[requestID]
        d.callback(self.unserialize(netResult))

        (internal) Got an answer to a previously sent message.

        Look up the appropriate callback and call it.

        @param requestID: The request ID.
        @param netResult: The answer.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/spread/pb.py