map -package:containers -package:charset -package:dense-linear-algebra -package:blaze-html -package:invertible -package:dlist -package:monoidal-containers -package:ghc -package:os-string -package:base-compat package:aeson is:exact

map :: (a -> b) -> KeyMap a -> KeyMap b
aeson Data.Aeson.KeyMap
Map a function over all values in the map.