map -package:containers -package:charset -package:invertible -is:exact -package:dense-linear-algebra -package:ghc -package:base -package:amazonka-core -package:base-prelude -package:base-compat is:exact -package:dlist -package:imports -package:insert-ordered-containers -package:monoidal-containers -package:bytestring package:foldl

Fold pairs into a map.