class type transport_channel_type =object..end
method identify_conn_by_name : boolWhether connections must be identified by name, and not by IP address. (Set for TLS connections.)
method setup_e : Unix.file_descr ->
       transport_layer_id ->
       float ->
       exn ->
       string ->
       int ->
       Unixqueue.event_system ->
       tls_cache -> Uq_engines.multiplex_controller Uq_engines.enginesetup fd trans tmo tmo_x host port esys tls_cache: 
      Create or configure a communication
      circuit over the file descriptor fd that can be driven by the
      returned multiplex controller object. Since OCamlnet-3.8, the method
      can also return private data for the connection cache.
tmo is the timeout. After inactivity the  exception tmo_x must be
      raised.
host is the name of the machine to connect to. port is the port
      number. The descriptor fd is already connected to this port, directly
      or via a proxy.
method continue : Unix.file_descr ->
       transport_layer_id ->
       float ->
       exn ->
       string ->
       int ->
       Unixqueue.event_system -> exn option -> Uq_engines.multiplex_controllercontinue is called when an already established circuit needs to
      be continued. The additional argument contains the stashed TLS session.
Note that the event system can be different now.
If it is not possible to continue, the method may raise Not_found.
method default_port : int optionIf set, the Host header omits this port number