map is:exact -package:text -package:amazonka-core -package:ghc -package:case-insensitive -package:blaze-html -package:base-compat-batteries -package:foldl -package:conduit -package:bytestring -package:dense-linear-algebra -package:base-prelude -package:aeson package:basement
Map all element a from a block to a new block of b
Map all elements in a list