def _add_to_cache(self, using, ct):
        model = ct.model_class()
        key = (model._meta.app_label, model._meta.object_name.lower())
        self.__class__._cache.setdefault(using, {})[key] = ct
        self.__class__._cache.setdefault(using, {})[ct.id] = ct
@see: twisted.names.client.lookupMailGroup
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/contrib/contenttypes/models.py/ContentTypeManager._add_to_cache--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/names/common.py/ResolverBase.lookupMailGroup