magento-test/app/code/Magento/Checkout/Test/Mftf/ActionGroup/CustomerCheckoutFillNewShippingAddressActionGroup.xml

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

<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
    <actionGroup name="CustomerCheckoutFillNewShippingAddressActionGroup">
        <annotations>
            <description>Fills in the provided Address details in the 'Shipping Address' section on the Storefront Checkout page.</description>
        </annotations>
        <arguments>
            <argument name="address" type="entity"/>
        </arguments>

        <selectOption selector="{{CheckoutShippingSection.country}}" userInput="{{address.country}}" stepKey="selectCounty"/>
        <fillField selector="{{CheckoutShippingSection.street}}" userInput="{{address.street}}" stepKey="fillStreet"/>
        <fillField selector="{{CheckoutShippingSection.city}}" userInput="{{address.city}}" stepKey="fillCity"/>
        <selectOption selector="{{CheckoutShippingSection.region}}" userInput="{{address.state}}" stepKey="selectRegion"/>
        <fillField selector="{{CheckoutShippingSection.postcode}}" userInput="{{address.postcode}}" stepKey="fillZipCode"/>
        <fillField selector="{{CheckoutShippingSection.telephone}}" userInput="{{address.telephone}}" stepKey="fillPhone"/>
        <fillField selector="{{CheckoutShippingSection.company}}" userInput="{{address.company}}" stepKey="fillCompany"/>
    </actionGroup>
</actionGroups>