map is:exact -package:text -package:dense-linear-algebra -package:base-prelude -package:case-insensitive -package:dlist -package:bytestring -package:ghc -package:containers -package:base-compat-batteries -package:invertible -package:Cabal-syntax -package:imports package:monoidal-containers
O(n) Transform this map by applying a function to every value.