Function new_route_set 

pub fn new_route_set<I: Ip + FidlRouteAdminIpExt>(
    route_table_proxy: &<I::RouteTableMarker as ProtocolMarker>::Proxy,
) -> Result<<I::RouteSetMarker as ProtocolMarker>::Proxy, RouteSetCreationError>

Dispatches new_route_set on either the RouteTableV4 or RouteTableV6 proxy.