Hypertalkval parse : string -> scriptval handlers : script -> string listtype 'w world = {get_field : 'w -> string -> string;set_field : 'w -> string -> string -> 'w;go : 'w -> card_ref -> 'w;answer : 'w -> string -> 'w;beep : 'w -> 'w;number_of_cards : 'w -> int;card_number : 'w -> int;card_name : 'w -> string;}