def _build_tier2children(self):
        return build_tier_tree(d for d in self._iter_devs() if d['weight'])
Checks that a JSON file is valid JSON
dataset/ETHPy150Open openstack/swift/swift/common/ring/builder.py/RingBuilder._build_tier2children--crossover with--dataset/ETHPy150Open gosquadron/squadron/squadron/autotest.py/verify_json