/**
     * Describes an InputArgument instance.
     */
    abstract protected function describeRouteCollection(RouteCollection $routes, array $options = []);

    /**
     * Describes an InputOption instance.
     */
    abstract protected function describeRoute(Route $route, array $options = []);

    /**
     * Describes container parameters.
     */
    abstract protected function describeContainerParameters(ParameterBag $parameters, array $options = []);

    /**
     * Describes container tags.
     */
    abstract protected function describeContainerTags(ContainerBuilder $builder, array $options = []);

    /**
     * Describes event dispatcher listeners.
     *
     * Common options are:
     * * name: name of listened event
     */
    abstract protected function describeEventDispatcherListeners(EventDispatcherInterface $eventDispatcher, array $options = []);

    /**
     * Describes a callable.
     *
     * @param mixed $callable
     */
    abstract protected function describeCallable($callable, array $options = []);