StorefrontCheckoutPaymentMethodSection.xml

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

<sections xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="urn:magento:mftf:Page/etc/SectionObject.xsd">
    <section name="StorefrontCheckoutPaymentMethodSection">
        <element name="billingAddress" type="text" selector=".checkout-billing-address"/>
        <element name="checkPaymentMethodByName" type="radio" selector="//div[@id='checkout-payment-method-load']//div[@class='payment-method']//label//span[contains(., '{{methodName}}')]/../..//input" parameterized="true"/>
        <element name="billingAddressSameAsShipping" type="checkbox" selector=".payment-method._active [name='billing-address-same-as-shipping']"/>
    </section>
</sections>