* @deprecated */ interface CartInterface { /** * Add product to shopping cart (quote) * * @param int|\Magento\Catalog\Model\Product $productInfo * @param array|float|int|\Magento\Framework\DataObject|null $requestInfo * @return $this */ public function addProduct($productInfo, $requestInfo = null); /** * Save cart * * @return $this * @abstract */ public function saveQuote(); /** * Associate quote with the cart * * @param Quote $quote * @return $this * @abstract */ public function setQuote(Quote $quote); /** * Get quote object associated with cart * * @return Quote * @abstract */ public function getQuote(); }