code: func labelValues(itemLabels map[string]string, opts PrintOptions) []string {
  	var values []string
  	for _, key := range opts.ColumnLabels {
  		values = append(values, itemLabels[key])
  	}
  	if opts.ShowLabels {
  		values = append(values, labels.FormatLabels(itemLabels))
  	}
  	return values
  }
docs: // labelValues returns a slice of value columns matching the requested print options.