OptParse.StdOpt

`sig
val store_const : ?default:'a -> 'a -> 'a OptParse.Opt.t
val store_true : unit -> bool OptParse.Opt.t
val store_false : unit -> bool OptParse.Opt.t
val count_option :
?dest:int Stdlib.ref -> ?increment:int -> unit -> int OptParse.Opt.t
val incr_option : ?dest:int Stdlib.ref -> unit -> int OptParse.Opt.t
val decr_option : ?dest:int Stdlib.ref -> unit -> int OptParse.Opt.t
val int_option :
?default:int -> ?metavar:string -> unit -> int OptParse.Opt.t
val float_option :
?default:float -> ?metavar:string -> unit -> float OptParse.Opt.t
val str_option :
?default:string -> ?metavar:string -> unit -> string OptParse.Opt.t
val int_callback : ?metavar:string -> (int -> unit) -> unit OptParse.Opt.t
val float_callback :
?metavar:string -> (float -> unit) -> unit OptParse.Opt.t
val str_callback :
?metavar:string -> (string -> unit) -> unit OptParse.Opt.t
val help_option : unit -> 'a OptParse.Opt.t
val version_option : (unit -> string) -> 'a OptParse.Opt.t
end`