map -package:containers -package:basement -package:conduit -is:exact -package:base-prelude -package:bytestring -package:filepath -package:os-string -package:dense-linear-algebra -package:hedgehog -package:psqueues 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"]