def shutdown(self):
        newJobsQueue = self.newJobsQueue
        self.newJobsQueue = None

        newJobsQueue.put(None)
        self.worker.join()
Test getting a non existing time zone.
dataset/ETHPy150Open BD2KGenomics/toil/src/toil/batchSystems/slurm.py/SlurmBatchSystem.shutdown--crossover with--dataset/ETHPy150Open home-assistant/home-assistant/tests/util/test_dt.py/TestDateUtil.test_get_time_zone_returns_none_for_garbage_time_zone