Resolve local users and groups.

        :param iid:
        :param named:
        :param uid:
        :return:

def _id_resolv(self, iid, named=True, uid=True):
        '''
        Resolve local users and groups.

        :param iid:
        :param named:
        :param uid:
        :return:
        '''

        if not self.local_identity:
            self.local_identity['users'] = self._get_local_users()
            self.local_identity['groups'] = self._get_local_groups()

        if not named:
            return iid

        for name, meta in self.local_identity[uid and 'users' or 'groups'].items():
            if (uid and int(meta.get('uid', -1)) == iid) or (not uid and int(meta.get('gid', -1)) == iid):
                return name

        return iid