public Task SynchronizeFolder(SubscriptionFolder folder)
 {
     return(SynchronizeJob.Schedule(scheduler, folder));
 }
 public Task SynchronizeAll()
 {
     return(SynchronizeJob.ScheduleGlobal(scheduler));
 }
 public Task SynchronizeSubscription(Subscription subscription)
 {
     return(SynchronizeJob.Schedule(scheduler, subscription));
 }