code: def xiphias_get_users(self, peer_jids: Union[str, List[str]]):
          
          return self._send_xmpp_element(xiphias.UsersRequest(peer_jids))
docs: Calls the new format xiphias message to request user data such as profile creation date
          and background picture URL.
  
          :param peer_jids: one jid, or a list of jids