public function create() : OrderProductInterface
{
$orderProduct = new OrderProduct();
$orderProduct->setQuantity(1);
$orderProduct->setWeight(0);
$orderProduct->setBuyPrice(new Price());
$orderProduct->setSellPrice(new DiscountablePrice());
$orderProduct->setCreatedAt(new \DateTime());
$orderProduct->setUpdatedAt(new \DateTime());
$orderProduct->setOptions([]);
return $orderProduct;
}