Httpun_lwt_tlsval request :
?alpn_protocols:string list ->
hostname:string ->
socket:Lwt_unix.file_descr ->
error_handler:Httpun.Client_connection.error_handler ->
response_handler:Httpun.Client_connection.response_handler ->
Httpun.Request.t ->
(Httpun.Body.Writer.t * (unit -> unit Lwt.t), 'a) Stdlib.result Lwt.t