def shouldKeepGoing(self, path):
        return (self.retriever.shouldKeepGoing(path) and
                self.shouldStillKeepGoing(path))
checks is multifs1 is a subset of multifs2
dataset/ETHPy150Open twisted/imaginary/imaginary/idea.py/DelegatingRetriever.shouldKeepGoing--crossover with--dataset/ETHPy150Open fp7-ofelia/ocf/optin_manager/src/python/openflow/optin_manager/flowspace/helper.py/multifs_is_subset_of