-- (instancetype)initWithCKKSKeychainView:(CKKSKeychainView*) ckks
- currentPointer:(NSString*)identifier
- oldItemUUID:(NSString*)oldItemUUID
- newItemUUID:(NSString*)newItemUUID
- ckoperationGroup:(CKOperationGroup*)ckoperationGroup;
+- (instancetype)initWithCKKSKeychainView:(CKKSKeychainView* _Nonnull)ckks
+ newItem:(NSData* _Nonnull)newItemPersistentRef
+ hash:(NSData* _Nonnull)newItemSHA1
+ accessGroup:(NSString* _Nonnull)accessGroup
+ identifier:(NSString* _Nonnull)identifier
+ replacing:(NSData* _Nullable)oldCurrentItemPersistentRef
+ hash:(NSData* _Nullable)oldItemSHA1
+ ckoperationGroup:(CKOperationGroup* _Nullable)ckoperationGroup;