map -package:containers is:exact -package:dlist -package:case-insensitive -package:charset -package:base-compat -package:integration 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.