map -package:containers is:exact -package:base-compat-batteries -package:ghc -package:charset -package:invertible -package:imports -package:foldl -package:filepath -package:basement package:bytestring

O(n) map f xs is the ByteString obtained by applying f to each element of xs.
O(n) map f xs is the ByteString obtained by applying f to each element of xs
O(n) map f xs is the ShortByteString obtained by applying f to each element of xs.