cts.fitnessOrder( [$options as String] ) as cts.order
Creates a fitness-based ordering clause, for use as an option to cts:search.
Options. The default is ().
Only one of "ascending" or "descending" may be specified in the options parameter. If neither "ascending" nor "descending" is specified, then the default is "ascending".
cts.fitnessOrder("descending"); => cts.fitnessOrder("descending")