if err != nil {
		return nil, err
	}

	for _, l := range listeners.DynamicListeners {
		if l.ActiveState == nil {
			continue
		}
		// Support v2 or v3 in config dump. See ads.go:RequestedTypes for more info.
		l.ActiveState.Listener.TypeUrl = v3.ListenerType
		listenerTyped := &listener.Listener{}
		err = l.ActiveState.Listener.UnmarshalTo(listenerTyped)
		if err != nil {
			return nil, err
		}

message DeleteOptions {
  // The duration in seconds before the object should be deleted. Value must be non-negative integer.
  // The value zero indicates delete immediately. If this value is nil, the default grace period for the
  // specified type will be used.
  // Defaults to a per object value if not specified. zero means delete immediately.
  // +optional
  optional int64 gracePeriodSeconds = 1;