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map -package:ghc -package:bytestring -package:basement -package:psqueues -package:regex-tdfa -package:filepath -package:charset -package:containers is:exact -package:base -package:invertible package:foldl
map
:: Ord a => Fold (a, b) (Map a b)
foldl
Control.Foldl
Fold pairs into a map.
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