@interface VTLowPowerModeMonitor : VTEventMonitor { unsigned char _powerMode; } + (id)sharedInstance; - (void)_stopMonitoring; - (id)init; - (void)_startMonitoringWithQueue:(id)a0; - (unsigned char)_checkPowerMode; - (void)_didReceiveLowPowerModeChanged; - (void)_didReceiveLowPowerModeChangedInQueue:(unsigned char)a0; - (void)_notifyObserver:(id)a0 withPowerMode:(unsigned char)a1; - (BOOL)isLowPowerMode; - (unsigned char)powerMode; @end