def add(self, member):
        """Add a :class:`Principal` to this local group

        :param member: anything accepted by :func:`principal`
        :returns: :class:`Principal` for `member`
        """
        member = principal(member)
        wrapped(win32net.NetGroupAddUser, self.system, self.name, (member.domain, member.name) % r"%s\%s")
        return member
dataset/ETHPy150Open tjguk/winsys/winsys/accounts.py/GlobalGroup.add/swapped operands of `%`