EasyPost\Tracker::retrieve PHP Метод

    public static function retrieve($id, $apiKey = null)
    {
        return self::_retrieve(get_class(), $id, $apiKey);
    }

 public function trackPackage($id)
 {
     $track = ShippingLabel::where('cart_id', $id)->first();
     $check = \EasyPost\Tracker::retrieve($track->easypost_tracking);
     if ($check->status == 'delivered') {
         Shipping::where('cart_id', $id)->update(['shipped_status' => 'DELIVERED', 'tracking_number' => $check->updated_at]);
         return redirect()->route('salesmanager.index');
     }
     Shipping::where('cart_id', $id)->update(['shipped_status' => 'SHIPPED', 'tracking_number' => $check->tracking_code]);
     return view('shipping.status', compact('check'));
 }