newsupernova/vendor/magento/framework/Controller/Index/Index.php

<?php
/**
 *
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Framework\Controller\Index;

class Index extends \Magento\Framework\App\Action\Action
{
    /**
     * @return void
     */
    public function execute()
    {
    }
}