include module type of Faraday_lwt
val serialize : Faraday.t -> yield:(Faraday.t -> unit Lwt.t) -> writev:(Faraday.bigstring Faraday.iovec list -> [ `Ok of int | `Closed ] Lwt.t) -> unit Lwt.tval writev_of_fd : Lwt_unix.file_descr -> Faraday.bigstring Faraday.iovec list -> [ `Ok of int | `Closed ] Lwt.t