def test_datetime_dict_keys_with_keys_enabled(self):
        datetime_dict = {datetime.datetime(2008, 12, 31): True}
        pickled = jsonpickle.encode(datetime_dict, keys=True)
        expect = datetime_dict
        actual = jsonpickle.decode(pickled, keys=True)
        self.assertEqual(expect, actual)
Updates the alias properties map and verifies each alias property.
dataset/ETHPy150Open jsonpickle/jsonpickle/tests/datetime_test.py/DateTimeAdvancedTestCase.test_datetime_dict_keys_with_keys_enabled--crossover with--dataset/ETHPy150Open GoogleDeveloperExperts/experts-app-backend/endpoints_proto_datastore/ndb/model.py/EndpointsMetaModel._FixUpAliasProperties