for _, addr := range addrs {
		if addr := addr.GetSocketAddress(); addr != nil {
			result = append(result, addr.Address+":"+strconv.Itoa(int(addr.GetPortValue())))
			continue
		}
		if addr := addr.GetPipe(); addr != nil {
			result = append(result, addr.GetPath())
			continue
		}
		if internal := addr.GetEnvoyInternalAddress(); internal != nil {
			switch an := internal.GetAddressNameSpecifier().(type) {

	return "UNKNOWN"
}

func retrieveListenerAddress(l *listener.Listener) string {
	sockAddr := l.Address.GetSocketAddress()
	if sockAddr != nil {
		return sockAddr.Address
	}

	pipe := l.Address.GetPipe()
	if pipe != nil {
		return pipe.Path
	}

	return ""
}

func retrieveListenerAdditionalAddresses(l *listener.Listener) []string {
	var addrs []string