public function create()
    {
        /**
         * @var CartLine $cartLine
         */
        $classNamespace = $this->getEntityNamespace();
        $cartLine = new $classNamespace();
        $cartLine
            ->setAmount($this->createZeroAmountMoney())
            ->setPurchasableAmount($this->createZeroAmountMoney());

        return $cartLine;
    }