@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