def setUp(self):
    super(EventLoopTests, self).setUp()
    if os.environ in eventloop._EVENT_LOOP_KEY:
      del os.environ[eventloop._EVENT_LOOP_KEY]
    self.ev = eventloop.get_event_loop()
dataset/ETHPy150Open GoogleCloudPlatform/datastore-ndb-python/ndb/eventloop_test.py/EventLoopTests.setUp/swapped operands of `in`