@class NSXPCListener, NSMutableDictionary, SYNotesActivationObserver, NSMutableOrderedSet, NSString, NSObject, SYBacklinkMonitorOperation; @protocol OS_dispatch_queue, OS_os_transaction, SYBacklinkMonitorServiceTestingDelegate; @interface SYBacklinkMonitorService : NSObject <NSXPCListenerDelegate, SYBacklinkMonitorOperationDelegate, SYBacklinkMonitorServiceHandleDelegate> @property (retain, nonatomic) NSObject<OS_dispatch_queue> *_serviceQueue; @property (retain, nonatomic) NSXPCListener *_listener; @property (retain, nonatomic) NSObject<OS_os_transaction> *_keepAliveTransaction; @property (retain, nonatomic) SYNotesActivationObserver *_notesObserver; @property (retain, nonatomic) NSMutableDictionary *_handles; @property (retain, nonatomic) SYBacklinkMonitorOperation *_activeOperation; @property (retain, nonatomic) SYBacklinkMonitorOperation *_longerLivedOperation; @property (retain, nonatomic) NSMutableOrderedSet *_pendingOperations; @property (readonly, nonatomic) BOOL _forTesting; @property (weak, nonatomic) id<SYBacklinkMonitorServiceTestingDelegate> testingDelegate; @property (readonly, nonatomic) BOOL hasKeepAliveTransaction; @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)init; - (void)dealloc; - (id)_listenerEndpoint; - (BOOL)listener:(id)a0 shouldAcceptNewConnection:(id)a1; - (void)beginListeningToConnections; - (void)backlinkMonitorOperation:(id)a0 shouldUpdateFilterCache:(id)a1; - (void)_updateKeepAliveTransaction; - (void)scheduleOperationForHandle:(id)a0 withUserActivity:(id)a1 context:(id)a2; - (void).cxx_destruct; - (id)initForTesting:(BOOL)a0; - (void)_notesActivationDidChange:(BOOL)a0; - (void)backlinkMonitorOperationDidFinish:(id)a0; - (void)_evaluateAndBeginPendingOperations; - (void)handleDidDisconnect:(id)a0; - (void)_createAndScheduleOperationForHandle:(id)a0 withUserActivity:(id)a1 context:(id)a2; @end