System/Library/PrivateFrameworks/GameCenterFoundation.framework

GKMultiplayerServiceInterface.h

Download GKMultiplayerServiceInterface.h

1. NSObject
2. >
3. GKServiceInterface

@interface GKMultiplayerServiceInterface : GKServiceInterface

+ (id)interfaceProtocol;
+ (void)configureInterface:(id)a0;

@end