+
−{% macro form(action='', class='') %}
+
−<form method="post" action="{{action}}" {{ {'class': class}|xmlattr }}>
+
−    {% if csrf_token is defined %}
+
−        <input type="hidden" name="csrf_token" value="{{csrf_token}}">
+
−    {% endif %}
+
−    {{ caller() }}
+
−</form>
+
−{% endmacro %}