@property
    def cardinality(self):
        return 2**(self.superset_size)
Turn this db record dict into the format this service uses for
dataset/ETHPy150Open sympy/sympy/sympy/combinatorics/subsets.py/Subset.cardinality--crossover with--dataset/ETHPy150Open openstack/swift/swift/common/db.py/DatabaseBroker.make_tuple_for_pickle