Dumplie\Customer\Infrastructure\Doctrine\ORM\Domain\ORMCarts::getById PHP Method

    public function getById(CartId $cartId) : Cart
    {
        $cart = $this->entityManager->getRepository(Cart::class)->findOneBy(['id.id' => $cartId]);
        if ($cart === null) {
            throw CartNotFoundException::byId($cartId);
        }
        return $cart;
    }