{% set title = label(record.raw.__name__) %}
{% set document_date = record.raw.invoice_date and record.render.invoice_date %}
{% set label_date = label(record.raw.__name__, 'invoice_date') %}

<h1 class="document">{{ title }}: {{ record.raw.number and record.render.number or '' }} <h1>
{% if document_date %}<h2 class="document">{{ label_date }}: {{ document_date }} </h2>{% endif %}
{% if record.raw.reference %}<h2 class="document">{{ label(record.raw.__name__, 'reference') }}: {{ record.raw.reference and record.render.reference }} </h2>{% endif %}