PaymentItemShipment::isExistShipment

protected function isExistShipment(CollectionFilterIterator $paymentItems, BitrixSaleShipment $shipment): bool
{
	foreach ($paymentItems as $paymentItem)
	{
		/** @var BitrixSaleShipment $entityShipment */
		$entityShipment = $paymentItem->getEntityObject();
		if ($shipment->getInternalIndex() === $entityShipment->getInternalIndex())
		{
			return true;
		}
	}
	return false;
}