drupalcampbristol/vendor/symfony/dependency-injection/Tests/Fixtures/config/basic.php

<?php

namespace Symfony\Component\DependencyInjection\Loader\Configurator;

use App\BarService;

return function (ContainerConfigurator $c) {
    $s = $c->services();
    $s->set(BarService::class)
        ->args(array(inline('FooClass')));
};