code: func (rule *RecordingRule) HTMLSnippet(pathPrefix string) template.HTML {
  	ruleExpr := rule.vector.String()
  	labels := make(map[string]string, len(rule.labels))
  	for _, l := range rule.labels {
  		labels[l.Name] = template.HTMLEscapeString(l.Value)
  	}
  
  	r := rulefmt.Rule{
  		Record: fmt.Sprintf(`<a href="%s">%s</a>`, pathPrefix+strutil.TableLinkForExpression(rule.name), rule.name),
  		Expr:   fmt.Sprintf(`<a href="%s">%s</a>`, pathPrefix+strutil.TableLinkForExpression(ruleExpr), template.HTMLEscapeString(ruleExpr)),
  		Labels: labels,
  	}
  
  	byt, err := yaml.Marshal(r)
  	if err != nil {
  		return template.HTML(fmt.Sprintf("error marshaling recording rule: %q", template.HTMLEscapeString(err.Error())))
  	}
  
  	return template.HTML(byt)
  }
docs: // HTMLSnippet returns an HTML snippet representing this rule.