supersetOf

    pub fn supersetOf(self: Self, other: Self) bool {
        if (self.bit_length != other.bit_length) {
            return false;
        }
        const num_masks = numMasks(self.bit_length);
        var i: usize = 0;
        return while (i < num_masks) : (i += 1) {
            if (self.masks[i] & other.masks[i] != other.masks[i]) {
                break false;
            }
        } else true;
    }