text: //
  //  WPDataManager.h
  //  WonderPush
  //
  //  Created by Stéphane JAIS on 13/02/2019.
  //  Copyright © 2019 WonderPush. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface WPDataManager : NSObject
  + (instancetype) sharedInstance;
  - (void)downloadAllData:(void (^)(NSData *, NSError *))completion;
  - (void)clearEventsHistory;
  - (void)clearEventsHistoryForUserId:(NSString *)userId;
  - (void) clearPreferences;
  - (void) clearPreferencesForUserId:(NSString *)userId;
  - (void) clearAllData;
  - (void) clearLocalStorage;
  - (void) clearInstallation:(NSString *)userId;
  @end
  