protected override object Fallback(CommandFailedException instigator) { Thread.Sleep(_sleepDuration); return new { }; }
protected override object Fallback(CommandFailedException instigator) { return new { }; }
protected override object Fallback(CommandFailedException instigator) { throw instigator; }
protected override object Fallback(CommandFailedException instigator) { FallbackCalled = true; return Value; }