map -package:containers is:exact -package:aeson -package:invertible -package:base-compat -package:base-prelude -package:dlist -package:base 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.