code: func BodyContainsOr(values ...string) ResponseCondition {
  	return func(res *http.Response) error {
  		body, err := ioutil.ReadAll(res.Body)
  		if err != nil {
  			return fmt.Errorf("failed to read response body: %s", err)
  		}
  
  		for _, value := range values {
  			if strings.Contains(string(body), value) {
  				return nil
  			}
  		}
  		return fmt.Errorf("could not find '%v' in body '%s'", values, string(body))
  	}
  }
docs: // BodyContainsOr returns a retry condition function.
  // The condition returns an error if the request body does not contain one of the given
  // strings.