Backend\Core\Engine\Backend::initialize PHP Method

    public function initialize()
    {
        $url = new Url($this->getKernel());
        new TwigTemplate();
        new Navigation($this->getKernel());
        new Header($this->getKernel());
        $this->action = new Action($this->getKernel());
        $this->action->setModule($url->getModule());
        $this->action->setAction($url->getAction());
    }