System/Library/PrivateFrameworks/StorageKit.framework
SKSyncCommand.h
@class NSError, NSObject;
@protocol OS_dispatch_semaphore;
@interface SKSyncCommand : NSObject
@property (retain, nonatomic) NSObject<OS_dispatch_semaphore> *semaphore;
@property (retain, nonatomic) NSError *error;
- (id)init;
- (void).cxx_destruct;
- (void)onCallbackWithError:(id)a0;
- (BOOL)waitAndReturnWithError:(id *)a0;
@end