method public ShipmentCollection::isExistBasketItem() Класс: \Bitrix\Sale\ShipmentCollection Сигнатура public isExistBasketItem(BasketItem $basketItem[, bool|false $includeSystemShipment = false ]) : bool Параметры $basketItem BasketItem $includeSystemShipment bool|false = false Возвращаемое значение bool Исходный файл: source/sale/lib/shipmentcollection.php:1323