map -package:containers -package:case-insensitive -package:insert-ordered-containers -package:amazonka-core -package:monoidal-containers -package:blaze-html -package:Cabal-syntax is:exact -package:hedgehog -package:conduit -package:dlist -package:ghc package:basement
Map all element a from a block to a new block of b
Map all elements in a list