'Start the XEP-0128 plugin.'

def plugin_init(self):

    self._disco_ops = ['set_extended_info', 'add_extended_info', 'del_extended_info']
    register_stanza_plugin(DiscoInfo, Form, iterable=True)
    self.disco = self.xmpp['xep_0030']
    self.static = StaticExtendedDisco(self.disco.static)
    self.disco.set_extended_info = self.set_extended_info
    self.disco.add_extended_info = self.add_extended_info
    self.disco.del_extended_info = self.del_extended_info
    for op in self._disco_ops:
        self.api.register(getattr(self.static, op), op, default=True)
