Batteries user guide : BatOptParse.Formatter

`sig
type t = {
indent : unit -> unit;
dedent : unit -> unit;
format_usage : string -> string;
format_heading : string -> string;
format_description : string -> string;
format_option :
char list * string list -> string list -> string option -> string;
}
val indented_formatter :
?level:int Pervasives.ref ->
?indent:int Pervasives.ref ->
?indent_increment:int ->
?max_help_position:int ->
?width:int -> ?short_first:bool -> unit -> BatOptParse.Formatter.t
val titled_formatter :
?level:int Pervasives.ref ->
?indent:int Pervasives.ref ->
?indent_increment:int ->
?max_help_position:int ->
?width:int -> ?short_first:bool -> unit -> BatOptParse.Formatter.t
val wrap :
?initial_indent:int ->
?subsequent_indent:int -> string -> int -> string list
val fill :
?initial_indent:int -> ?subsequent_indent:int -> string -> int -> string
end`