newsupernova/vendor/magento/module-tax/etc/extension_attributes.xml

<?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\Quote\Api\Data\TotalSegmentInterface">
        <attribute code="tax_grandtotal_details" type="Magento\Tax\Api\Data\GrandTotalDetailsInterface[]" />
    </extension_attributes>
    <extension_attributes for="Magento\Sales\Api\Data\OrderInterface">
        <attribute code="applied_taxes" type="Magento\Tax\Api\Data\OrderTaxDetailsAppliedTaxInterface[]" />
        <attribute code="item_applied_taxes" type="Magento\Tax\Api\Data\OrderTaxDetailsItemInterface[]" />
        <attribute code="converting_from_quote" type="boolean" />
    </extension_attributes>
    <extension_attributes for="Magento\Tax\Api\Data\OrderTaxDetailsAppliedTaxInterface">
        <attribute code="rates" type="Magento\Tax\Api\Data\AppliedTaxRateInterface[]" />
    </extension_attributes>
    <extension_attributes for="Magento\Catalog\Api\Data\ProductRender\PriceInfoInterface">
        <attribute code="tax_adjustments" type="Magento\Catalog\Api\Data\ProductRender\PriceInfoInterface" />
    </extension_attributes>
    <extension_attributes for="Magento\Tax\Api\Data\QuoteDetailsItemInterface">
        <attribute code="price_for_tax_calculation" type="float" />
    </extension_attributes>
</config>