def at_cmdset_get(self, **kwargs):

        pass

    # Mock db/ndb properties for allowing easy storage on the session
    # (note that no databse is involved at all here. session.db.attr =
    # value just saves a normal property in memory, just like ndb).
A dummy hook all objects with cmdsets need to have
dataset/ETHPy150Open evennia/evennia/evennia/server/serversession.py/ServerSession.at_cmdset_get