map -package:containers -package:insert-ordered-containers -package:dense-linear-algebra -package:invertible -package:charset -package:basement -package:bytestring -package:pipes -package:regex-tdfa -package:case-insensitive -package:dlist is:exact -package:unordered-containers -package:filepath -package:vector -package:blaze-html package:foldl

Fold pairs into a map.