ShipmentCollection::isMarked

public function isMarked()
{
	if (!empty($this->collection) && is_array($this->collection))
	{
		/** @var Shipment $shipment */
		foreach ($this->collection as $shipment)
		{
			if ($shipment->isSystem())
				continue;

			if ($shipment->isMarked())
				return true;
		}
	}

	return false;
}