Edit file File name : UpdateMetadataInterface.php Content :<?php /* * Copyright 2020 Google LLC * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace WPMailSMTP\Vendor\Google\Auth; /** * Describes a Credentials object which supports updating request metadata * (request headers). */ interface UpdateMetadataInterface { const AUTH_METADATA_KEY = 'authorization'; /** * Updates metadata with the authorization token. * * @param array<mixed> $metadata metadata hashmap * @param string $authUri optional auth uri * @param callable $httpHandler callback which delivers psr7 request * @return array<mixed> updated metadata hashmap */ public function updateMetadata($metadata, $authUri = null, callable $httpHandler = null); } Save