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