gistfile1.txt

{% from tpl_container import render as container with context %}
{% call container() %}
    {% from tpl_before import render as before with context %}
    {{ before(compo) }}
    {% for compo_obj in compo.components %}
        {% if compo_obj.is_visible() %}
            {% from tpl_row import render as row with context %}
            {% call row() %}
                {{ compo_obj.render() }}
            {% endcall %}
        {% endif %}
    {% endfor %}
    {% from tpl_after import render as after with context %}
    {{ after(compo) }}
{% endcall %}

row should be this:
{% macro render(caller=None) %}
<div class="list-group-item col-sm-12">
    {{ compo_obj.render() }}
</div>
{% endmacro %}