This crate defines ReadLayered and WriteLayered traits which extend std::io::Read and std::io::Write with additional functionality useful for performing I/O through layers of buffering and translation.

And it defines LayeredReader, LayeredWriter, and LayeredDuplexer types which implement ReadLayered, WriteLayered, and both, respectively, by wrapping implementations of std::io::Read, std::io::Write, and both, respectively.