Edit file File name : ResourceOwnerAccessTokenInterface.php Content :<?php /** * This file is part of the league/oauth2-client library * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. * * @copyright Copyright (c) Alex Bilbie <hello@alexbilbie.com> * @license http://opensource.org/licenses/MIT MIT * @link http://thephpleague.com/oauth2-client/ Documentation * @link https://packagist.org/packages/league/oauth2-client Packagist * @link https://github.com/thephpleague/oauth2-client GitHub */ namespace YoastSEO_Vendor\League\OAuth2\Client\Token; interface ResourceOwnerAccessTokenInterface extends \YoastSEO_Vendor\League\OAuth2\Client\Token\AccessTokenInterface { /** * Returns the resource owner identifier, if defined. * * @return string|null */ public function getResourceOwnerId(); } Save