map -package:containers -package:base-prelude -is:exact -package:foldl -package:integration -is:exact -package:bytestring -package:dense-linear-algebra -package:base-compat -package:imports -package:ghc package:aeson is:exact

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