System/Library/PrivateFrameworks/AppleMediaServices.framework
AMSCommerceService.h
@class NSObject, NSXPCConnection;
@protocol OS_dispatch_queue, AMSCommerceService;
@interface AMSCommerceService : NSObject
@property (class, retain, nonatomic) NSXPCConnection *sharedConnection;
@property (class, readonly, nonatomic) NSObject<OS_dispatch_queue> *sharedConnectionAccessQueue;
@property (class, readonly, nonatomic) id<AMSCommerceService> proxyObject;
@property (class, readonly, nonatomic) id<AMSCommerceService> proxyObjectAsync;
+ (id)_createXPCConnection;
@end