code: function IdleTask(scheduler, v1, count) {
    this.scheduler = scheduler;
    this.v1 = v1;
    this.count = count;
  }
docs: An idle task doesn't do any work itself but cycles control between the two
  device tasks.
  @param {Scheduler} scheduler the scheduler that manages this task
  @param {int} v1 a seed value that controls how the device tasks are scheduled
  @param {int} count the number of times this task should be scheduled
  @constructor