{% for label, messages in app.flashes(['success', 'warning', 'danger', 'error']) %}
    {% for message in messages %}
        <div class="alert alert-{{ label }} alert-dismissible fade show" role="alert">
            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
            <h4>Information : </h4>
            <p>{{ message }}</p>
        </div>
    {% endfor %}
{% endfor %}