map -package:containers -package:insert-ordered-containers -package:bytestring -is:exact -package:basement -package:invertible -package:Cabal-syntax -package:dlist -package:incipit-base -package:psqueues -package:regex-tdfa package:unordered-containers is:exact
Transform this map by applying a function to every value.
Transform this set by applying a function to every value.
The resulting set may be smaller than the source.
>>> HashSet.map show (HashSet.fromList [1,2,3])
HashSet.fromList ["1","2","3"]