@interface _TtC11ActivityKitP33_37102ADAD4FB4DA90D1EB342A548B6909Singleton : NSObject <ACActivityPresentationObservationXPCClient> { void /* unknown type, empty encoding */ queue; void /* unknown type, empty encoding */ connection; void /* unknown type, empty encoding */ serverStartupToken; void /* unknown type, empty encoding */ _presentationPublisher; void /* unknown type, empty encoding */ _queue_presentations; void /* unknown type, empty encoding */ _queue_predicates; } @property (class, nonatomic, readonly) _TtC11ActivityKitP33_37102ADAD4FB4DA90D1EB342A548B6909Singleton *shared; - (id)init; - (void).cxx_destruct; - (void)activityPresentationsDidChange:(id)a0 completion:(id /* block */)a1; - (id)listenForActivityPresentationWithActivityIdentifier:(id)a0 presenterBundleIdentifier:(id)a1 handler:(id /* block */)a2; @end