map -package:containers -package:insert-ordered-containers -package:conduit -package:dlist -package:incipit-base -package:Cabal-syntax -package:amazonka-core is:exact -package:dense-linear-algebra -package:case-insensitive -package:hedgehog -package:aeson package:basement
Map all element a from a block to a new block of b
Map all elements in a list