Cmdliner_arg.Completion
type complete = string -> (string * string) list
type 'a t
val make : ?complete:complete -> ?dirs:bool -> ?files:bool -> ?restart:bool -> unit -> 'a t
val complete : 'a t -> complete
val dirs : 'a t -> bool
val files : 'a t -> bool
val restart : 'a t -> bool
val none : 'a t
val some : 'a t -> 'a option t