public object Span(string value) => SpanCron.Parse(value);
protected override string ParseToString(string expression) { return(SpanCron.Parse(expression).ToString()); }
protected override DateTime GetNext(string expression, DateTime value) { return(SpanCron.Parse(expression).GetNext(value)); }
public object NaiveSpan(string value) => SpanCron.Parse(value).GetNext(Input);