map -package:containers -package:ghc -package:conduit -package:basement -package:monoidal-containers -package:case-insensitive -package:aeson -package:pipes -package:dense-linear-algebra -package:insert-ordered-containers -package:text -package:base -package:base-prelude -package:hedgehog -package:Cabal-syntax -package:dlist package:foldl is:exact

Fold pairs into a map.