}

    public String getMessage(int i) {
        return messages.get(i);
    }

    public List<String> getMessages() {
        return Collections.unmodifiableList(messages);
    }

    public void addMessage(String message) {
        messages.add(message);
    }

    @Override
    public String toString() {
        return render("");
    }

    public String render(String indentation) {