def diffstore(self, dest, *others):
        keys = [self.key]
        keys.extend([other.key for other in others])
        self.database.sdiffstore(dest, keys)
        return self.database.Set(dest)
Returns a tuple of the form: ( default_value_type, default_value )
dataset/ETHPy150Open coleifer/walrus/walrus/containers.py/Set.diffstore--crossover with--dataset/ETHPy150Open enthought/traitsui/traitsui/ui_traits.py/HasMargin.get_default_value