def METHOD_NAME(self):
    """Display property only accept Dictionary."""
    data = {"id": "http://url.tld", "display": "foo"}
    serializer = VerbSerializer(data=data)
    self.assertFalse(serializer.is_valid())
    self.assertIn("display", serializer.errors)
    error = serializer.errors.get("display").pop(0)
    self.assertEqual(error.code, "not_a_dict")