def test_null_annotation(self):
        book = Book.objects.annotate(no_value=Value(None, output_field=IntegerField())).first()
        self.assertIsNone(book.no_value)
Return the current head revision.
dataset/ETHPy150Open django/django/tests/annotations/tests.py/NonAggregateAnnotationTestCase.test_null_annotation--crossover with--dataset/ETHPy150Open goFrendiAsgard/kokoropy/kokoropy/packages/alembic/script.py/ScriptDirectory.get_current_head