def METHOD_NAME(self, pdu: MCSChannelJoinConfirmPDU):
    if pdu.result == 0:
        self.log.debug("Channel Join #%(channelID)s successful", {"channelID": pdu.channelID})
    else:
        self.log.debug("Channel Join #%(channelID)s failed", {"channelID": pdu.channelID})