Expanded class hierarchy of ChainRouteCollection in Zircon Profile 8
- class \Symfony\Component\Routing\RouteCollection implements \Symfony\Component\Routing\IteratorAggregate, \Symfony\Component\Routing\Countable
- class \Symfony\Cmf\Component\Routing\ChainRouteCollection
- class \Symfony\Cmf\Component\Routing\LazyRouteCollection