text: //
  //  CKDiscoverAllContactsOperation.h
  //  CloudKit
  //
  //  Copyright (c) 2014 Apple Inc. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  #import <CloudKit/CKOperation.h>
  
  @class CKDiscoveredUserInfo;
  
  /* Finds all discoverable users in the device's address book. No Address Book access dialog will be displayed */
  NS_ASSUME_NONNULL_BEGIN
  NS_CLASS_AVAILABLE(10_10, 8_0)
  __TVOS_UNAVAILABLE
  @interface CKDiscoverAllContactsOperation : CKOperation
  
  - (instancetype)init NS_DESIGNATED_INITIALIZER;
  
  @property (nonatomic, copy, nullable) void (^discoverAllContactsCompletionBlock)(NSArray <CKDiscoveredUserInfo *> * __nullable userInfos, NSError * __nullable operationError);
  
  @end
  NS_ASSUME_NONNULL_END
  