text: //
  //  Copyright (c) 2016 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 FUIAuth;
  #import <FirebaseUI/FUIAuthProvider.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  /** @class FUIAnonymousAuth
      @brief AuthUI components for Anonymous Sign In.
   */
  @interface FUIAnonymousAuth : NSObject <FUIAuthProvider>
  
  /** @fn init
      @brief Initialize the instance with the default AuthUI. 
   */
  - (instancetype)init;
  
  /** @fn initWithAuthUI:
      @param authUI The @c FUIAuth instance that manages controllers of this provider.
   */
  - (instancetype)initWithAuthUI:(FUIAuth *)authUI NS_DESIGNATED_INITIALIZER;
  
  @end
  
  NS_ASSUME_NONNULL_END
  