def _prefix_getter(self):
        if not self.children:
            return ""
        return self.children[0].prefix
Removes a ban from the channel banlist.
dataset/ETHPy150Open ctxis/canape/CANAPE.Scripting/Lib/lib2to3/pytree.py/Node._prefix_getter--crossover with--dataset/ETHPy150Open ProgVal/Limnoria/src/ircdb.py/IrcChannel.removeBan