map -package:containers -package:bytestring -is:exact -package:dense-linear-algebra -package:base-compat -package:charset -package:base-prelude -package:hedgehog -package:insert-ordered-containers -package:ghc is:exact package:aeson

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