$dd->getModel() returns empty string

I am using the matomo library to get info about a device. I have this snippet of code

$userAgent = "Mozilla\/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/112.0.0.0 Safari\/537.36";
        $clientHints = ClientHints::factory($request);
        $dd = new DeviceDetector($userAgent, $clientHints);
        $dd->parse();
        $brand = $dd->getBrandName();
        $model = $dd->getModel();
        $osInfo = $dd->getOs();

but for some reasons the $dd->getModel() returns an empty string.
Please help!!!