return
		}
	}
}

func (conn *Connection) sendDelta(res *discovery.DeltaDiscoveryResponse, newResourceNames []string) error {
	sendResonse := func() error {
		start := time.Now()
		defer func() { xds.RecordSendTime(time.Since(start)) }()
		return conn.deltaStream.Send(res)
	}
	err := sendResonse()
	if err == nil {
		if !strings.HasPrefix(res.TypeUrl, v3.DebugType) {

		// well behaved clients should close connections.
		// not all clients are well-behaved. This will prune
		// connections when the client is not responding, to keep
		// us from holding many stale conns from deceased clients
		//
		// Also TODO(https://github.com/hyperium/hyper/pull/3647)
		ConnectionKeepalive: &core.KeepaliveSettings{
			Interval: durationpb.New(h2KeepaliveInterval),