@class AWAttentionAwarenessClient, NSString, NSMutableDictionary, NSObject;
@protocol OS_dispatch_queue;
@interface TLAttentionAwarenessObserver : NSObject {
NSObject<OS_dispatch_queue> *_accessQueue;
NSString *_accessQueueLabel;
NSMutableDictionary *_pollingForAttentionEventHandlers;
BOOL _isFullyInitialized;
BOOL _isPollingForAttention;
AWAttentionAwarenessClient *_attentionAwarenessClient;
NSObject<OS_dispatch_queue> *_attentionAwarenessClientQueue;
}
@property (class, readonly) TLAttentionAwarenessObserver *sharedAttentionAwarenessObserver;
@property (class, readonly) BOOL supportsAttenuatingTonesForAttentionDetected;
- (id)init;
- (void)dealloc;
- (void)_assertNotRunningOnAccessQueue;
- (void).cxx_destruct;
- (void)_assertRunningOnAccessQueue;
- (void)_beginPollingForAttention;
- (void)_didCompleteInitialization;
- (void)_didReceiveAttentionPollingEventOfType:(unsigned long long)a0 attentionEvent:(id)a1;
- (void)_endPollingForAttention;
- (void)_invokePollingForAttentionEventHandlers:(id)a0 eventType:(long long)a1;
- (void)cancelPollForAttentionWithToken:(id)a0;
- (id)pollForAttentionWithEventHandler:(id /* block */)a0;
@end