:- category(interface).
:- public(interface/0).
:- mode(interface, one).
interface :-
forall(
(::current_predicate(Functor/Arity),
functor(Pred, Functor, Arity)),
(::predicate_property(Pred, Prop), scope_property(Prop),
writeq(Functor/Arity), write(' - '), writeq(Prop), nl)).
scope_property(public).
scope_property(protected).
scope_property(private).
:- end_category.