code: func (n *Netrc) Render() string {
  	var b bytes.Buffer
  	for _, token := range n.tokens {
  		b.WriteString(token)
  	}
  	for _, machine := range n.machines {
  		for _, token := range machine.tokens {
  			b.WriteString(token)
  		}
  	}
  	return b.String()
  }
docs: // Render out the netrc file to a string