public static function is_context_expired(\context $context) : bool {
        $parents = $context->get_parent_contexts(true);
        foreach ($parents as $parent) {
            if ($parent instanceof \context_course) {
                // This is a context within a course. Check whether _this context_ is expired as a function of a course.
                return self::is_course_context_expired($context);
            }

            if ($parent instanceof \context_user) {
                // This is a context within a user. Check whether the _user_ has expired.
                return self::are_user_context_dependencies_expired($parent);
            }
        }

        return false;
    }