IconCacheTwigFilter example

$loader,
            sys_get_temp_dir() . '/twig_test_' . microtime(true),
            new NamespaceHierarchyBuilder([
                $builder,
            ]),
            $scopeDetector,
        );

        $twig->addExtension(new NodeExtension($templateFinder, $scopeDetector));
        $twig->getExtension(NodeExtension::class)->getFinder();

        $twig->addExtension(new IconCacheTwigFilter());
        $twig->addExtension(new IconExtension($templateFinder));

        return $twig;
    }
}

/** * @internal */
class TestController extends StorefrontController
{