text: //
  //  TAKUUIDStorage.h
  //  TAKUUID
  //
  //  Created by Takahiro Ooishi
  //  Copyright (c) 2014 Takahiro Ooishi. All rights reserved.
  //  Released under the MIT license.
  //
  
  #import <Foundation/Foundation.h>
  #import <Security/Security.h>
  
  @interface TAKUUIDStorage : NSObject
  
  @property (nonatomic, readonly) OSStatus lastErrorStatus;
  @property (nonatomic, copy, nullable) NSString *accessGroup;
  
  + (nonnull instancetype)sharedInstance;
  - (nullable NSString *)findOrCreate;
  - (BOOL)remove;
  - (nullable NSString *)renew;
  - (BOOL)migrate;
  
  @end
  