def can_update_cache(self):
        return self.in_any_group(self.request.userid, self.cache_update)
Called when websocket is closed.
dataset/ETHPy150Open mathcamp/pypicloud/pypicloud/access/base.py/IAccessBackend.can_update_cache--crossover with--dataset/ETHPy150Open owtf/owtf/framework/http/proxy/proxy.py/CustomWebSocketHandler.on_close