text: // Copyright (c) Microsoft Corporation. All rights reserved.
  // Licensed under the MIT License.
  
  NS_ASSUME_NONNULL_BEGIN
  
  @class MSACUserIdContext;
  
  @protocol MSACUserIdContextDelegate <NSObject>
  
  /**
   * A callback that is called after a new userId is set.
   *
   * @param userIdContext userId context.
   * @param userId userId which was set.
   */
  - (void)userIdContext:(MSACUserIdContext *)userIdContext didUpdateUserId:(nullable NSString *)userId;
  
  @end
  
  NS_ASSUME_NONNULL_END
  