def add(self, key, value, timeout=None):
        raise NotImplementedError
Test that application can authenticate to Crowd.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/core/cache/backends/base.py/BaseCache.add--crossover with--dataset/ETHPy150Open pycontribs/python-crowd/crowd.py/CrowdServer.auth_ping