magento-test/app/code/Magento/Translation/view/base/templates/translate.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

/**
 * @var \Magento\Translation\Block\Js $block
 * @var \Magento\Framework\View\Helper\SecureHtmlRenderer $secureRenderer
 * @deprecated logic was refactored in order to not use localstorage at all.
 *
 * You can see details in app/code/Magento/Translation/view/base/web/js/mage-translation-dictionary.js
 * These block and view file were left in order to keep backward compatibility
 */