code: def _initialize_session(self):
          
  
          session_server = core.SessionServer.create(self).value
          token = session_server.token.token
          expiry_time = self._get_expiry_timestamp(session_server)
          user_id = session_server.get_referenced_user().id_
  
          self._session_context = SessionContext(token, expiry_time, user_id)
docs: :rtype: None