league/route with methodargumentstrategy and registered callables

index.php

<?php

use League\Container\Container;
use League\Route\RouteCollection;
use League\Route\Strategy\MethodArgumentStrategy;
use Symfony\Component\HttpFoundation\Request;

require 'vendor/autoload.php';

$container = new Container();
$router = new RouteCollection($container);

$router->setStrategy(new MethodArgumentStrategy());
$router->post('/user/{username}', 'create_controller');

$container->add(Request::class, function () {
    return Request::create('/user/philipobenito', 'POST');
});

$container->invokable('create_controller', function (Request $request, $username) {
    var_dump('invokable', $request->getMethod(), $username); exit;
})->withArgument(Request::class);

$router->getDispatcher()->dispatch('POST', '/user/philipobenito');