<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
    <extension_attributes for="Magento\Quote\Api\Data\PaymentInterface">
        <attribute code="rokanthemes_opc" type="string[]" />
    </extension_attributes>
    <extension_attributes for="Magento\Sales\Api\Data\OrderInterface">
        <attribute code="customer_shipping_date" type="string" />
        <attribute code="customer_shipping_comments" type="string" />
    </extension_attributes>
    <extension_attributes for="Magento\Sales\Api\Data\InvoiceInterface">
        <attribute code="customer_shipping_date" type="string" />
        <attribute code="customer_shipping_comments" type="string" />
    </extension_attributes>
    <extension_attributes for="Magento\Sales\Api\Data\ShipmentInterface">
        <attribute code="customer_shipping_date" type="string" />
        <attribute code="customer_shipping_comments" type="string" />
    </extension_attributes>
    <extension_attributes for="Magento\Sales\Api\Data\CreditmemoInterface">
        <attribute code="customer_shipping_date" type="string" />
        <attribute code="customer_shipping_comments" type="string" />
    </extension_attributes>
</config>
