def __iter__(self):
        return _itertools.chain(*sorted(self._cidrs))
Ensure that this class cannot be directly used as the sync strategy.
dataset/ETHPy150Open drkjam/netaddr/netaddr/ip/sets.py/IPSet.__iter__--crossover with--dataset/ETHPy150Open aws/aws-cli/tests/unit/customizations/s3/syncstrategy/test_base.py/TestBaseSync.test_determine_should_sync