code: func parseContToken(token string) (pack int, offset int64, err error) {
  	// Special case
  	if token == "" {
  		pack = 0
  		offset = 0
  		return
  	}
  	_, err = fmt.Sscan(token, &pack, &offset)
  
  	return
  }
docs: // The continuation token will be in the form: "<pack#> <offset>"