{% set heading_attributes = create_attribute({
    'class': ['styleguide'],
    'id': key,
}) %}
{% set container_attributes = create_attribute({
    'class': ['styleguide'],
    'aria-labelledby': key,
}) %}
<h2{{ heading_attributes }}>{{ item.title }}</h2>
{% if item.description %}
    {% set description_id = key ~ '-description' %}
    {% set description_attributes = create_attribute({
        'class': ['styleguide-description'],
        'id': description_id,
    }) %}
    {% set container_attributes = container_attributes.setAttribute('aria-describedby', description_id) %}
    <div{{ description_attributes }}>
        {{ item.description }}
    </div>
{% endif %}
<div{{ container_attributes }}>
    {{ content }}
</div>