FooManager.php

<?php
namespace Elnur\Manager;

use Symfony\Component\HttpFoundation\Session\SessionInterface;
use JMS\DiExtraBundle\Annotation\Service;
use JMS\DiExtraBundle\Annotation\InjectParams;

/**
 * @Service
 */
class FooManager
{
    /**
     * @var SessionInterface
     */
    private $session;

    /**
     * @InjectParams
     *
     * @param SessionInterface $session
     */
    public function __construct(SessionInterface $session)
    {
        $this->session = $session;
    }
}