public function getDeliveryChargeSpecs()
    {
        $aDeliveryChargeSpecs = [];
        $oDeliveryChargeSpecs = $this->getDeliveryList();
        foreach ($oDeliveryChargeSpecs as $oDeliveryChargeSpec) {
            if ($oDeliveryChargeSpec->oxdelivery__oxaddsumtype->value == "abs") {
                $oDelSets = oxNew(\OxidEsales\Eshop\Application\Model\DeliverySetList::class);
                $oDelSets->loadRDFaDeliverySetList($oDeliveryChargeSpec->getId());
                $oDeliveryChargeSpec->deliverysetmethods = $oDelSets;
                $aDeliveryChargeSpecs[] = $oDeliveryChargeSpec;
            }
        }

        return $aDeliveryChargeSpecs;
    }