namespace System.Reactive.Concurrency { public static class VirtualTimeSchedulerExtensions { public static IDisposable ScheduleRelative<[Nullable(0)] TAbsolute, [Nullable(2)] TRelative>(this VirtualTimeSchedulerBase<TAbsolute, TRelative> scheduler, TRelative dueTime, Action action) where TAbsolute : IComparable<TAbsolute>; public static IDisposable ScheduleAbsolute<[Nullable(0)] TAbsolute, [Nullable(2)] TRelative>(this VirtualTimeSchedulerBase<TAbsolute, TRelative> scheduler, TAbsolute dueTime, Action action) where TAbsolute : IComparable<TAbsolute>; } }