Missing leading slash

[DavidEmmel]

In a new Symfony 7 install it threw an error until I added the leading slash pdfAction(\Knp\Snappy\Pdf $knpSnappyPdf)

use Knp\Bundle\SnappyBundle\Snappy\Response\PdfResponse;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;

class SomeController extends AbstractController
{
    public function pdfAction(**\**Knp\Snappy\Pdf $knpSnappyPdf)
    {
        $html = $this->renderView('MyBundle:Foo:bar.html.twig', array(
            'some'  => $vars
        ));

        return new PdfResponse(
            $knpSnappyPdf->getOutputFromHtml($html),
            'file.pdf'
        );
    }
}