def stored_messages_count(self, storage, response):
        raise NotImplementedError('This method must be set by a subclass.')
Return a sha256 kingerprint for the key
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/messages/tests/base.py/BaseTest.stored_messages_count--crossover with--dataset/ETHPy150Open saltstack/salt/salt/key.py/RaetKey._get_key_finger