def test_empty_creator(self):
        json = self.instance.as_dict().copy()
        json['creator'] = None
        milestone = github3.issues.milestone.Milestone(json)
        assert milestone.creator is None
Show that creator is None when json attribute is empty.
dataset/ETHPy150Open sigmavirus24/github3.py/tests/unit/test_issues_milestone.py/TestMilestone.test_empty_creator