let x = ref 0

let () =
  Api.reg_mod "Plugin_ref";
  
  Api.add_cb 
    (fun () ->
       Printf.printf "current value for ref = %i\n" !x;
       incr x
    )
  

let x = ref 0

let () =
  Api.reg_mod "Plugin_ref";
  
  Api.add_cb 
    (fun () ->
       Printf.printf "current value for ref = %i\n" !x;
       incr x
    )
  
