public function getMemberNames()
    {
        $members = [];

        $dns = $this->getAttribute($this->schema->member()) ?: [];

        foreach ($dns as $dn) {
            $exploded = Utilities::explodeDn($dn);

            if (array_key_exists(0, $exploded)) {
                $members[] = $exploded[0];
            }
        }

        return $members;
    }