def update_mud_from_packet(self, packet):
        mud = IMC2Mud(packet)
        self[mud.name] = mud
Gets the value of a "live" field from L{NodeQueryData}.
dataset/ETHPy150Open evennia/evennia/evennia/server/portal/imc2.py/IMC2MudList.update_mud_from_packet--crossover with--dataset/ETHPy150Open ganeti/ganeti/lib/query.py/_GetLiveNodeField