{# call-only #} {% macro section(name, title=none, class_name=none) %} {% if title %} {% call header() %} {{ heading(title) }} {% endcall %} {% endif %} {{ caller() }} {% endmacro %} {% macro header(class_name=none) %} {{ caller() }} {% endmacro %} {% macro heading(title, class_name=none) %}