^^&&^^

Edit File: GenerateIdTokenRequest.php

<?php
/*
 * Copyright 2014 Google Inc.
 *
 * 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.
 */

class Google_Service_IAMCredentials_GenerateIdTokenRequest extends Google_Collection
{
  protected $collection_key = 'delegates';
  public $audience;
  public $delegates;
  public $includeEmail;

public function setAudience($audience)
  {
    $this->audience = $audience;
  }
  public function getAudience()
  {
    return $this->audience;
  }
  public function setDelegates($delegates)
  {
    $this->delegates = $delegates;
  }
  public function getDelegates()
  {
    return $this->delegates;
  }
  public function setIncludeEmail($includeEmail)
  {
    $this->includeEmail = $includeEmail;
  }
  public function getIncludeEmail()
  {
    return $this->includeEmail;
  }
}