def update_image_member(self, img_id, status):
        return self._manager.update_image_member(img_id, status)
Proxy models are included in the ancestors for a model's DoesNotExist
dataset/ETHPy150Open rackspace/pyrax/pyrax/image.py/ImageClient.update_image_member--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/tests/modeltests/proxy_models/tests.py/ProxyModelTests.test_proxy_included_in_ancestors