{%- macro regform_attrs_template_hook(event, regform, management, registration=none) -%}
    {% for attrs in template_hook('regform-container-attrs', as_list=true, event=event, regform=regform,
                                  management=management, registration=registration) %}
        {{ attrs | html_params }}
    {% endfor %}
{%- endmacro -%}
