def test_content_types_for_proxy_models(self):
        from django.db.models import Model
        from django.contrib.contenttypes.models import ContentType

        ct = ContentType.objects.get_for_model(ProxyChild, for_concrete_model=False)
        self.assertEqual(ProxyChild, ct.model_class())
True iff the item has children.
dataset/ETHPy150Open chrisglass/django_polymorphic/polymorphic/tests.py/PolymorphicTests.test_content_types_for_proxy_models--crossover with--dataset/ETHPy150Open enthought/pyface/pyface/viewer/default_tree_content_provider.py/DefaultTreeContentProvider.has_children