Provider::createProductShipmentItemMap

static function createProductShipmentItemMap(array $shipmentItemList)
{
	$result = [];

	/** @var SaleShipmentItem $shipmentItem */
	foreach ($shipmentItemList as $shipmentItem)
	{
		$basketItem = $shipmentItem->getBasketItem();

		$providerName = self::clearProviderName($basketItem->getProviderName());

		$result[$providerName][$basketItem->getProductId()][$shipmentItem->getInternalIndex()] = $shipmentItem;
	}

	return $result;
}