def clear_flush_lists(self, keys):
        cache.delete_many(keys)
Infer ID space and advance corresponding counter.
dataset/ETHPy150Open django-cache-machine/django-cache-machine/caching/invalidation.py/Invalidator.clear_flush_lists--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/datastore_file_stub.py/DatastoreFileStub._SetMaxId