public function index(Request $request): View 	{ 		$delivery_type = $request->enum('delivery_type', DeliveryType::class) ?? DeliveryType::GLS;  		$deliveryPrices = DeliveryPrice::where('delivery_type', $delivery_type)->orderBy('country_name')->get(); 		$deliveryOptions = DeliveryType::toArray();  		return view('delivery-prices.list', ['deliveryPrices' => $deliveryPrices, 'deliveryOptions' => $deliveryOptions, 'delivery_type' => $delivery_type]); 	}