code: func (u *UUID) decodeBraced(t []byte) (err error) {
  	l := len(t)
  
  	if t[0] != '{' || t[l-1] != '}' {
  		return fmt.Errorf("uuid: incorrect UUID format %s", t)
  	}
  
  	return u.decodePlain(t[1 : l-1])
  }
docs: // decodeBraced decodes UUID string in format
  // "{6ba7b810-9dad-11d1-80b4-00c04fd430c8}" or in format
  // "{6ba7b8109dad11d180b400c04fd430c8}".