It's hard to find docs and examples of Async lib

Ecosystem
5

What I’m trying to say is in addition to the lack of documentation, the API of Async seems keep changing all the time.

The example from SO has syntax error:

  let%bind socket = Udp.bind addr in

Another example from discuss.ocaml.org also has syntax error right now:

let () = 
  Command.async
    ~summary:"herp"
    Command.Spec.(empty)
    (fun () -> def)
  |> Command.run


File "sendudp.ml", line 23, characters 4-19:
Error: The function applied to this argument has type
         ?extract_exn:bool -> ?readme:(unit -> string) -> Command.t
This argument cannot be applied without label