How add autocomplete to $model in Resource Controller

I created class

PHP Code:

class WebWalker extends ResourceController
{
    protected $modelName = 'App\Models\WebWalkerModel';
    protected $format = 'json';

    public function index() {
        return $this->respond($this->model->findAll());
    }
} 


But phpstorm/vscode don't suggest $this->model->.....

if I add the $model property and add a description to it in PHPDoc, then the autocomplete starts working, Am I doing the right thing?

PHP Code:

class WebWalker extends ResourceController
{
    /**
    * @var WebWalkerModel
    */
    protected $model = 'App\Models\WebWalkerModel';
    protected $modelName = 'App\Models\WebWalkerModel';
    protected $format = 'json';

    public function index() {
        return $this->respond($this->model->findAll());
    }
}