FooVoid example

        return $container->services['closure1'] = (new class(fn () => new \Symfony\Component\DependencyInjection\Tests\Compiler\Foo()) extends \Symfony\Component\DependencyInjection\Argument\LazyClosure { public function cloneFoo(?\stdClass $bar = null): \Symfony\Component\DependencyInjection\Tests\Compiler\Foo { return $this->service->cloneFoo(...\func_get_args()); } })->cloneFoo(...);
    }

    /** * Gets the public 'closure2' shared service. * * @return \Closure */
    protected static function getClosure2Service($container, $lazyLoad = true)
    {
        return $container->services['closure2'] = (new class(fn () => new \Symfony\Component\DependencyInjection\Tests\Compiler\FooVoid()) extends \Symfony\Component\DependencyInjection\Argument\LazyClosure { public function __invoke(string $name): void { $this->service->__invoke(...\func_get_args()); } })->__invoke(...);
    }
}