magento-test/app/code/Magento/Sales/Test/Mftf/Page/StorefrontPrintOrderPage.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 /**
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-->

<pages xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Page/etc/PageObject.xsd">
    <page name="StorefrontPrintOrderPage" url="sales/guest/print/order_id/{{order_id}}" module="Magento_Sales" area="storefront" parameterized="true">
        <section name="StorefrontOrderDetailsSection"/>
    </page>
</pages>