map -package:containers -package:foldl -package:incipit-base -package:base-compat-batteries -package:dense-linear-algebra -package:aeson -package:hedgehog -is:exact is:exact -package:Cabal-syntax -package:monoidal-containers -package:ghc package:basement
Map all element a from a block to a new block of b
Map all elements in a list