def get_flush_lists(self, keys):
        return set(e for flush_list in
                   [_f for _f in list(cache.get_many(keys).values()) if _f]
                   for e in flush_list)
If a delayed call is scheduled and then some time passes, the
dataset/ETHPy150Open django-cache-machine/django-cache-machine/caching/invalidation.py/Invalidator.get_flush_lists--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/internet/test/test_posixbase.py/IterationTimeoutTests.test_timePasses