<span
    data-autocomplete-wagtailadmin-home="{% url 'wagtailadmin_home' %}"
    data-autocomplete-input-name="{{ widget.name }}"
    data-autocomplete-input-value="{{ widget.value }}"
    data-autocomplete-input-type="{{ widget.target_model }}"
    data-autocomplete-input-id="{{ widget.attrs.id }}"
    {% if widget.can_create %}data-autocomplete-input-can-create{% endif %}
    {% if widget.is_single %}data-autocomplete-input-is-single{% endif %}
    data-autocomplete-input
></span>
