orn := operatorResourceName
	if revision != "" {
		orn += "-" + revision
	}
	return deploymentExists(cs, operatorNamespace, orn)
}

// renderOperatorManifest renders a manifest to install the operator with the given input arguments.
func renderOperatorManifest(_ *RootArgs, ocArgs *operatorCommonArgs) (string, string, error) {

func getMatches(f *listener.FilterChainMatch) string {
	match := f
	if match == nil {
		match = &listener.FilterChainMatch{}
	}
	// filterChaince also has SuffixLen, SourceType, SourcePrefixRanges which are not rendered.

	descrs := []string{}
	if len(match.ServerNames) > 0 {
		descrs = append(descrs, fmt.Sprintf("SNI: %s", strings.Join(match.ServerNames, ",")))
	}
	if len(match.TransportProtocol) > 0 {

}

// generateValidatingWebhook renders a validating webhook configuration from the given tagWebhookConfig.
func generateValidatingWebhook(config *tagWebhookConfig, opts *GenerateOptions) (string, error) {
	r := helm.NewHelmRenderer(opts.ManifestsPath, defaultChart, "Pilot", config.IstioNamespace, nil)

	if err := r.Run(); err != nil {
		return "", fmt.Errorf("failed running Helm renderer: %v", err)
	}

	values := fmt.Sprintf(`

	if err := baseRenderer.Run(); err != nil {
		return "", fmt.Errorf("failed running base Helm renderer: %w", err)
	}
	if err := discoveryRenderer.Run(); err != nil {
		return "", fmt.Errorf("failed running base discovery Helm renderer: %w", err)
	}

	values := fmt.Sprintf(`
global:
  istioNamespace: %s
`, opt.Namespace)

			default:
				// This encodes bytes < 0x20 except for \t, \n and \r.
				// If escapeHTML is set, it also escapes <, >, and &
				// because they can lead to security holes when
				// user-controlled strings are rendered into JSON
				// and served to some browsers.
				dst.WriteString(`u00`)
				dst.WriteByte(hexTable[b>>4])
				dst.WriteByte(hexTable[b&0xF])
			}
			i++
			start = i
			continue
		}

	// be mangled. Any existing identifier that already has the same name on
	// the C-side will cause the Go-mangled version to be prefixed with _.
	// (e.g. in a struct with fields '_type' and 'type', the latter would be
	// rendered as '__type' in Go).
	ident := make(map[string]string)
	used := make(map[string]bool)
	for _, f := range dt.Field {
		ident[f.Name] = f.Name
		used[f.Name] = true
	}

	if !*godefs {