def test_remove_with_empty_string(self):
        now = datetime.datetime.now()
        file = 'R0lGODlhAQABAIAAAP///////yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=='
        uploaded_image = UploadedBase64Image(file=file, created=now)
        serializer = UploadedBase64ImageSerializer(instance=uploaded_image, data={'created': now, 'file': ''})
        self.assertTrue(serializer.is_valid())
        self.assertEqual(serializer.validated_data['created'], uploaded_image.created)
        self.assertIsNone(serializer.validated_data['file'])
Signal connected to the action of toggling the update checkbox.
dataset/ETHPy150Open Hipo/drf-extra-fields/tests/test_fields.py/Base64ImageSerializerTests.test_remove_with_empty_string--crossover with--dataset/ETHPy150Open Morgawr/gogonlinux/gog_utils/gog_gui.py/UpdateWindow.__toggled