map -package:containers -package:base-compat -package:charset -package:insert-ordered-containers -package:integration -package:basement -package:monoidal-containers -package:base -package:hedgehog -package:ghc -package:regex-tdfa -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.