{%- if node.is_document() %}
  {% include "components/section/index_extends_node.jinja" %}
{%- elif node.is_requirement() %}
  {# FIXME: Remove this commented out code. #}
  {# {%- if node.is_text_node() %}
    {% include "components/text_node/index_extends_node.jinja" %}
  {% else %} #}
    {% include "components/node_content/index_extends_node.jinja" %}
  {# {% endif %} #}
{%- else %}
  {% assert false, "Must not reach here." %}
{%- endif %}