text: //
  //  AMPIdentify.h
  //  Amplitude
  //
  //  Created by Daniel Jih on 10/5/15.
  //  Copyright © 2015 Amplitude. All rights reserved.
  //
  
  @interface AMPIdentify : NSObject
  
  @property (nonatomic, strong, readonly) NSMutableDictionary *userPropertyOperations;
  
  + (instancetype)identify;
  - (AMPIdentify*)add:(NSString*) property value:(NSObject*) value;
  - (AMPIdentify*)append:(NSString*) property value:(NSObject*) value;
  - (AMPIdentify*)clearAll;
  - (AMPIdentify*)set:(NSString*) property value:(NSObject*) value;
  - (AMPIdentify*)setOnce:(NSString*) property value:(NSObject*) value;
  - (AMPIdentify*)unset:(NSString*) property;
  
  @end
  