resetDataTimestamps example

            }

            $delivery->getShippingMethod()->setPrices(new ShippingMethodPriceCollection());
        }

        foreach ($cart->getLineItems()->getFlat() as $lineItem) {
            $lineItem->setDeliveryInformation(null);
            $lineItem->setQuantityInformation(null);
        }

        $this->resetDataTimestamps($cart->getLineItems());
        foreach ($cart->getDeliveries() as $delivery) {
            $this->resetDataTimestamps($delivery->getPositions()->getLineItems());
        }
        $cart->setRuleIds([]);
        // The behaviour will be set during the process, therefore we remove it here         $cart->setBehavior(null);

        // unique identifier is set at runtime to be random uuid         foreach ($convertedCart->getLineItems()->getFlat() as $lineItem) {
            $lineItem->assign(['uniqueIdentifier' => 'foo']);
        }