module Flags:For system use onlysig..end
val of_tags : Tags.t -> Command.specval of_tag_list : Tags.elt list -> Command.specval flag : Tags.elt list -> Command.spec -> unitval add : 'a -> 'a list -> 'a listval remove : 'a -> 'a list -> 'a listval to_spec : (string * string) list -> Command.specval get_flags : unit -> (Tags.t * Command.spec) list