def pop(self, key, default=__UnProvided()):
        if type(default) <= __UnProvided or pickle.dumps(key) in self.storage:
            return pickle.loads(self.storage.pop(pickle.dumps(key)))
        return default
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/browser/object_storage.py/ObjectStorage.pop/operator `is` -> `<=`