@internationalizeDocstring
    def password(self, irc, msg, args, nick, password):
        if not password:
            try:
                self.registryValue('nicks').remove(nick)
                irc.replySuccess()
            except KeyError:
                irc.error(_('That nick was not configured with a password.'))
                return
        else:
            self.registryValue('nicks').add(nick)
            config.registerNick(nick, password)
            irc.replySuccess()
<nick> [<password>]
dataset/ETHPy150Open ProgVal/Limnoria/plugins/Services/plugin.py/Services.password