Command_upgrade (ocamlup_lib.Ocamlup_lib.Command

val ocamlup_update_root : string

val on_error : int -> 'a

val download : url:string -> file:string -> unit

val action : 
  update_opam:bool ->
  update_opam_bin:bool ->
  self:bool ->
  unit ->
  unit

val cmd : Ezcmd.V2.EZCMD.TYPES.sub