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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 _discovery_resp(self, data):
 """ Handle a discovery response. :param data: Payload. :param addr: Address tuple. :returns: MAC and reversed MAC. """

        if _is_discovery_response(data):
            _LOGGER.debug("Discovered MAC of %s: %s", self.host,
                          binascii.hexlify(data[7:13]).decode())
            return (data[7:13], data[19:25])