<?php/* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */namespaceSymfony\Component\Mime\Part\Multipart;useSymfony\Component\Mime\Part\AbstractMultipartPart;/** * @author Fabien Potencier <fabien@symfony.com> * * @experimental in 4.3 */finalclassAlternativePartextendsAbstractMultipartPart{publicfunctiongetMediaSubtype():string{return'alternative';}}