REVOKE EXECUTE ON FUNCTION public.has_role(uuid, public.app_role) FROM PUBLIC, anon, authenticated;
REVOKE EXECUTE ON FUNCTION public.is_enrolled(uuid, uuid) FROM PUBLIC, anon, authenticated;
REVOKE EXECUTE ON FUNCTION public.handle_new_user() FROM PUBLIC, anon, authenticated;
REVOKE EXECUTE ON FUNCTION public.handle_payment_approval() FROM PUBLIC, anon, authenticated;
REVOKE EXECUTE ON FUNCTION public.update_updated_at_column() FROM PUBLIC, anon, authenticated;