View file File name : class-wc-order-item-type-data-store-interface.php Content :<?php /** * Order Item Type Data Store Interface * * @version 3.0.0 * @package WooCommerce\Interface */ /** * WC Order Item Data Store Interface * * Functions that must be defined by order item store classes. * * @version 3.0.0 */ interface WC_Order_Item_Type_Data_Store_Interface { /** * Saves an item's data to the database / item meta. * Ran after both create and update, so $item->get_id() will be set. * * @param WC_Order_Item $item Item object. */ public function save_item_data( &$item ); }