symfony 5.1:如何将控制器定义为服务

services:
    App\Controller\MyController:
        class: App\Controller\MyController

my_route:
    path: /my-route
    controller: App\Controller\MyController

use App\Service\SomeService;

class MyController extends AbstractController
{
    private $someService;

    public function __construct(SomeService $someService)
    {
        $this->someService = $someService;
    }

    // ...
}

use App\Service\SomeService;

class MyController extends AbstractController
{
    private $someService;

    public function __construct(SomeService $someService)
    {
        $this->someService = $someService;
    }

    public function myAction(): Response
    {
        $result = $this->someService->doSomething();

        // ...

        return $this->render('my_template.html.twig', [
            'result' => $result,
        ]);
    }
}