### event actions ###
    def action_op(self, event):
        users = self.handle_cmd_users(event)
        self.mode(event, '+o')

    def action_voice(self, event):
        users = self.handle_cmd_users(event)
        self.voice(event, users)

    ### irc commands ###
    def mode(self, event, flag, users):
        flag = self.build_flag(flag, users.__len__())
        users= ' '.join(users)

        self.execute("MODE", event.target, flag, users)

    def op(self, event, users):
        self.mode(event, '+o', users)

    def voice(self, event, users):
        self.mode(event, '+v', users)