code: def get_features(self, jid):
          
  
          response = yield from self._disco.query_info(jid)
          result = set()
          for feature in response.features:
              try:
                  result.add(pubsub_xso.Feature(feature))
              except ValueError:
                  continue
          return result
docs: Return the features supported by a service.
  
          :param jid: Address of the PubSub service to query.
          :type jid: :class:`aioxmpp.JID`
          :return: Set of supported features
          :rtype: set containing :class:`~.pubsub.xso.Feature` enumeration
                  members.
  
          This simply uses service discovery to obtain the set of features and
          converts the features to :class:`~.pubsub.xso.Feature` enumeration
          members. To get the full feature information, resort to using
          :meth:`.DiscoClient.query_info` directly on `jid`.
  
          Features returned by the peer which are not valid pubsub features are
          not returned.