code: def start_router(router_class, router_name):
      
      handle = router_class.remote(router_name)
      ray.experimental.register_actor(router_name, handle)
      handle.start.remote()
      return handle
docs: Wrapper for starting a router and register it.
  
      Args:
          router_class: The router class to instantiate.
          router_name: The name to give to the router.
  
      Returns:
          A handle to newly started router actor.