map -package:containers -package:Cabal-syntax -package:imports -package:insert-ordered-containers -package:monoidal-containers -package:psqueues -package:aeson -package:hedgehog -package:os-string -package:invertible -is:exact -package:case-insensitive -package:blaze-html -is:exact is:exact -package:base-compat-batteries -package:dense-linear-algebra package:foldl

Fold pairs into a map.