System/Library/PrivateFrameworks/SpaceAttribution.framework
SADispatchGroup.h
@class NSObject;
@protocol OS_dispatch_group;
@interface SADispatchGroup : NSObject
@property (retain) NSObject<OS_dispatch_group> *group;
@property int entries;
+ (id)new;
- (int)wait:(unsigned long long)a0;
- (id)init;
- (void)leave;
- (void).cxx_destruct;
- (void)enter;
@end