text: //
  //  Copyright (c) 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.
  //
  
  #import <UIKit/UIKit.h>
  #import <Google/SignIn.h>
  
  // [START viewcontroller_interfaces]
  @interface ViewController : UIViewController <GIDSignInUIDelegate>
  // [END viewcontroller_interfaces]
  
  // [START viewcontroller_vars]
  @property (weak, nonatomic) IBOutlet GIDSignInButton *signInButton;
  @property (weak, nonatomic) IBOutlet UIButton *signOutButton;
  @property (weak, nonatomic) IBOutlet UIButton *disconnectButton;
  @property (weak, nonatomic) IBOutlet UILabel *statusText;
  // [END viewcontroller_vars]
  
  @end
  