code: func DeviceQueueSchedulerLoop() {
  	for {
  		log.Debug("running class-b / class-c scheduler batch")
  		if err := ScheduleDeviceQueueBatch(schedulerBatchSize); err != nil {
  			log.WithError(err).Error("class-b / class-c scheduler error")
  		}
  		time.Sleep(schedulerInterval)
  	}
  }
docs: // DeviceQueueSchedulerLoop starts an infinit loop calling the scheduler loop for Class-B
  // and Class-C sheduling.