map -package:containers -package:insert-ordered-containers -package:monoidal-containers -package:basement -package:pipes -package:regex-tdfa -package:filepath -package:base-compat-batteries -package:dlist -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.