map -package:containers -package:Cabal-syntax -is:exact -package:blaze-html -package:basement -package:insert-ordered-containers -package:monoidal-containers -package:os-string -package:filepath -package:base-compat is:exact -package:regex-tdfa package:unordered-containers
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"]