ShipmentItemCollection::getItemByBasketId

public function getItemByBasketId($itemId)
{
	$itemId = (int)$itemId;
	foreach ($this->collection as $shippedItem)
	{
		/** @var ShipmentItem $shippedItem */
		$shippedItemId = (int)($shippedItem->getBasketId());
		if ($itemId === $shippedItemId)
			return $shippedItem;
	}

	return null;
}