def add(self, key, value, timeout=None):
        return True
Return the resource corresponding to a single user. If `user_id` is
dataset/ETHPy150Open GoogleCloudPlatform/appengine-flask-skeleton/lib/werkzeug/contrib/cache.py/BaseCache.add--crossover with--dataset/ETHPy150Open ducksboard/libsaas/libsaas/services/zendesk/service.py/Zendesk.user