code: func ParseResID(s string) (ResID, error) {
  	if !IsResID(s) {
  		return 0, fmt.Errorf("androidbinary: %s is not ResID", s)
  	}
  	id, err := strconv.ParseUint(s[3:], 16, 32)
  	if err != nil {
  		return 0, err
  	}
  	return ResID(id), nil
  }
docs: // ParseResID parses ResId.