@class NSObject; @protocol OS_xpc_object; @interface RBSXPCMessageContext : NSObject { NSObject *_handoffToken; } @property (readonly, nonatomic) NSObject *connection; + (void)handoffContextOnQueue:(id)a0 block:(id /* block */)a1; + (void)runWithoutContext:(id /* block */)a0; + (id)currentContext; - (void)handoffToQueue:(id)a0 block:(id /* block */)a1; - (void).cxx_destruct; @end