class CmdRank(BotCommand):
    def args(self):
        return "[{target}]"
    def perform(self, bot, user, args):
        if len(args) == 0:
            bot.msg(CHANNEL, "Well who should I change?")
            return
        if RANKS[user] > args[1]:
            RANKS[args[0].lower()] = int(args[1])
            bot.msg(CHANNEL, args[0]+"'s rank has been changed."
    def info(self):
        return "Changes a target user's rank."