Request::route PHP Method

        public static function route($param = null)
        {
            return \Illuminate\Http\Request::route($param);
        }

 /**
  * Create a new controller instance.
  *
  * @return void
  */
 public function __construct(Request $request)
 {
     $this->middleware('guest');
     $lang = $request->route()->parameter('lang');
     View::composer('auth.register', function ($view) use($lang) {
         $view->with('countries', Country::withTranslation()->get());
     });
     $this->loginPath = route('sign in', $request->route()->parameters());
 }