VScode "Undefined type 'GoogleTagManager'.intelephense(P1009)"

[CoarsePiglet]

Hello folks

Using Laravel 10.28.0

I installed the plugin as per the docs.
and also added it to the app.php as per the docs.

However, in my controller when using it under a public function, it gives this error:
"Undefined type 'GoogleTagManager'.intelephense(P1009)"

The webpage weirdly works, but VScode shows this error.
Is this a problem with VScode, or am I doing something incorrectly?

use GoogleTagManager;

class Controller extends BaseController
{
    use AuthorizesRequests, ValidatesRequests;
    public function welcome()
    {
        GoogleTagManager::set('pagetype', 'website');
        return view('welcome');
    }
}