Function url and path not reconize in template twig -- TemplatedMail - token

Question

This is the example found in internet in https://github.com/symfony/mailer:
use Symfony\Bridge\Twig\Mime\BodyRenderer;
use Symfony\Bridge\Twig\Mime\TemplatedEmail;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\Mailer\EventListener\MessageListener;
use Symfony\Component\Mailer\Mailer;
use Symfony\Component\Mailer\Transport;
use Twig\Environment as TwigEnvironment;
$twig = new TwigEnvironment(...);
$messageListener = new MessageListener(null, new BodyRenderer($twig));
$eventDispatcher = new EventDispatcher();
$eventDispatcher->addSubscriber($messageListener);
$transport = Transport::fromDsn('smtp://localhost', $eventDispatcher);
$mailer = new Mailer($transport, null, $eventDispatcher);
$email = (new TemplatedEmail())
// ...
->htmlTemplate('emails/signup.html.twig')
->context([
'expiration_date' => new \DateTime('+7 days'),
'username' => 'foo',
])
;
$mailer->send($email);
I modified it with this code :
use Symfony\Bridge\Twig\Mime\BodyRenderer;
use Symfony\Bridge\Twig\Mime\TemplatedEmail;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\Mailer\EventListener\MessageListener;
use Symfony\Component\Mailer\Mailer;
use Symfony\Component\Mailer\Transport;
use Twig\Environment as TwigEnvironment;
use Twig\Loader\FilesystemLoader;
$loader = new FilesystemLoader(__DIR__ . '/../../templates');
$twig = new TwigEnvironment($loader);
$messageListener = new MessageListener(null, new BodyRenderer($twig));
$eventDispatcher = new EventDispatcher();
$eventDispatcher->addSubscriber($messageListener);
$transport = Transport::fromDsn('smtp://localhost?verify_peer=false', $eventDispatcher);
$mailer = new Mailer($transport, null, $eventDispatcher);
$email = (new TemplatedEmail())
->from(new Address('email#test.localdomain', 'TEST'))
->to($user->getEmail())
->subject('Your password reset request')
->htmlTemplate('reset_password/email.html.twig')
->context([
'resetToken' => $resetToken,
]) ;
It's for a reset password and i use the controller generate by the command Symfony.
So, in view, there is a generation about token url and it's use the function url which is not injected in template twig.
What do you suggest for to have the function url or path in twig?
I use Postfix with ubunbu 22.04 and i receive the email correctly without the token url.