<?xml version="1.0"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
    <extension_attributes for="Magento\Tax\Api\Data\TaxRateInterface">
    </extension_attributes>
    <extension_attributes for="Magento\Catalog\Api\Data\Product">
        <attribute code="stock_item" type="Magento\CatalogInventory\Api\Data\StockItem" />
    </extension_attributes>
    <extension_attributes for="Magento\Customer\Api\Data\CustomerInterface">
        <attribute code="custom_1" type="Magento\Customer\Api\Data\CustomerCustom" />
        <attribute code="custom_2" type="Magento\CustomerExtra\Service\V1\Data\CustomerCustom21" />
    </extension_attributes>
</config>
