{%with messages = get_flashed_messages(with_categories=true)%}
{%if messages%}
{%for category, message in messages%}
{# Categories: danger (Error), success (Success), info (Message) #}
<div class="alert alert-{{category}} alert-dismissible" role="alert">
    {{message}}
    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="base.label.close"></button>
</div>
{%endfor%}
{%endif%}
{%endwith%}