object
method get_title : string
method has_error : bool
method interactive : bool
method pool : Lang.F.pool
method set_descr : 'a Tactical.formatter
method set_error : 'a Tactical.formatter
method set_title : 'a Tactical.formatter
method update_field :
?enabled:bool ->
?title:string ->
?tooltip:string ->
?range:bool ->
?vmin:int ->
?vmax:int -> ?filter:(Lang.F.term -> bool) -> 'a Tactical.field -> unit
end