code: func convertTags(tags map[string]string) []string {
  	result := make([]string, 0, len(tags))
  	for k, v := range tags {
  		k := strings.ToLower(strings.TrimSpace(k))
  		v := strings.ToLower(strings.TrimSpace(v))
  		result = append(result, fmt.Sprintf("%s:%s", k, v))
  	}
  	return result
  }
docs: // converts from {"TagName":"TagValue"} to ["tagname:tagvalue"]