Class `Transport.t`

method virtual isOpen : bool
method virtual opn : unit
method virtual close : unit
method virtual read : bytes -> int -> int -> int
method readAll : < close : unit; flush : unit; isOpen : bool; opn : unit; read : bytes -> int -> int -> int; readAll : bytes -> int -> int -> int; write : bytes -> int -> int -> unit; write_string : string -> int -> int -> unit; .. > -> bytes -> int -> int -> int
method virtual write : bytes -> int -> int -> unit
method virtual write_string : string -> int -> int -> unit
method virtual flush : unit