staticfalsy (stream:Stream<String>):Stream<String>
staticjoin (stream:Stream<String>, sep:String):Stream<String>
staticmatch (stream:Stream<String>, pattern:EReg):Stream<String>
staticnotEmpty (stream:Stream<String>):Stream<String>
statictoBool (stream:Stream<String>):Stream<Bool>
statictruthy (stream:Stream<String>):Stream<String>
staticuniqueString (stream:Stream<String>):Stream<String>