Add getPickupCode and isRealProduct method.

src/DTO/OrderInterface.php

@@ -117,6 +117,8 @@ public function getPackageNumber(): ?string;
 
 	public function getNotice(): ?string;
 
+	public function getPickupCode(): ?string;
+
 	/**
 	 * The date and time the order was created or entered into the system.
 	 * Order dates must be in the same order as the order numbers.

src/DTO/OrderItemInterface.php

@@ -37,6 +37,8 @@ public function getProduct(): ProductInterface;
 
 	public function getVariant(): ?ProductVariantInterface;
 
+	public function isRealProduct(): bool;
+
 	public function getManufacturer(): ?ManufacturerInterface;
 
 	public function getEan(): ?string;