/**
* @param CartId $cartId
* @return Checkout
* @throws CheckoutNotFoundException
*/
public function getForCart(CartId $cartId) : Checkout
{
$checkout = $this->entityManager->getRepository(Checkout::class)->findOneBy(['cartId.id' => $cartId]);
if (is_null($checkout)) {
throw CheckoutNotFoundException::byCartId($cartId);
}
return $checkout;
}