<?php  namespace App\Services\Orders;  class OrderTotalCalc { 	private int $quantity = 0; 	private ?Totals $totals = null;  	private array $products = [];  	public function __construct(Totals $totals){}  	public function setProducts(array $products): void{}  	public function getQuantity(): int{}  	public function getTotalPrice(): string{}  	public function getTotalDiscounts(): string{}  	public function getTotalTax(): string{}  	public function getTotalWithDiscounts(): string{}  	public function calculate(): void{} }