map -package:containers -is:exact -package:insert-ordered-containers -package:base-compat -package:base -package:Cabal-syntax -package:bytestring -package:imports -package:dlist -package:foldl package:aeson is:exact

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