def _is_valid_value(self, value):
        # The value should be a list
        if not isinstance(value, list):
            return False

        return True
Since storage is eventually consistent, and we don't really know when,
dataset/ETHPy150Open Axelrod-Python/Axelrod/axelrod/deterministic_cache.py/DeterministicCache._is_valid_value--crossover with--dataset/ETHPy150Open EricssonResearch/calvin-base/calvin/tests/test_index.py/CalvinNodeTestIndexAll.testNodeIndexMany