protected override Task ExecuteAsync(CancellationToken stoppingToken)
        {
            _edgeDeviceDataEventsConsumer.Subscribe <DeviceDescriptionEvent, DeviceDescriptionEventHandler>("DeviceDescription");
            _edgeDeviceEventsConsumer.Subscribe <DeviceConnectionStateChangedEvent, DeviceConnectionStateChangedEventHandler>("DeviceConnectionStateChanged");

            return(Task.CompletedTask);
        }
 public void Subscribe()
 {
     _bookEventConsumer.Subscribe();
     _deleteBookEventConsumer.Subscribe();
 }