@class NSString, AMSEngagement; @protocol MPCPlaybackEngineEventStreamSubscription; @interface MPCAMSEngagementEventConsumer : NSObject <MPCPlaybackEngineEventConsumer> @property (class, readonly, copy, nonatomic) NSString *identifier; @property (readonly, nonatomic) id<MPCPlaybackEngineEventStreamSubscription> subscription; @property (readonly, nonatomic) AMSEngagement *engagement; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (void)unsubscribeFromEventStream:(id)a0; - (void).cxx_destruct; - (void)subscribeToEventStream:(id)a0; - (id)_JSONEncodableEvent:(id)a0; - (BOOL)_enqueueDataForPlaybackChangingEvent:(id)a0 cursor:(id)a1; @end