def check_joined_room(self, sync_config, state_delta):
        join_event = state_delta.get((
            EventTypes.Member, sync_config.user.to_string()), None)
        if join_event is not None:
            if join_event.content["membership"] == Membership.JOIN:
                return True
        return False
@Test: Create a datetime with non-Date arguments
dataset/ETHPy150Open matrix-org/synapse/synapse/handlers/sync.py/SyncHandler.check_joined_room--crossover with--dataset/ETHPy150Open omaciel/fauxfactory/tests/test_datetime.py/TestDates.test_gen_datetime_11