# Class type Lwt_engine.t

    class type t = object .. end

Type of engines.
Inherits

- `Lwt_engine.abstract`

    method iter : bool -> unit

    method private cleanup : unit

    method private register_readable : Unix.file_descr -> (unit -> unit) -> unit Lazy.t

    method private register_writable : Unix.file_descr -> (unit -> unit) -> unit Lazy.t

    method private register_timer : float -> bool -> (unit -> unit) -> unit Lazy.t