def unread_pkt_line(self, data):
        if self._readahead is not None:
            raise ValueError('Attempted to unread multiple pkt-lines.')
        self._readahead = StringIO(pkt_line(data))
Read back the device state.
dataset/ETHPy150Open natestedman/Observatory/observatory/lib/dulwich/protocol.py/Protocol.unread_pkt_line--crossover with--dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/light/blinksticklight.py/BlinkStickLight.update