plugins/ExampleVisualization/templates/simpleTable.twig

<div>
    <h2>{{ vizTitle }}</h2>

    <table class="dataTable">
        <thead>
            <tr>
                {% for name in properties.columns_to_display %}
                    {% if name in properties.translations|keys %}
                        <th>{{ properties.translations[name]|translate }}</th>
                    {% else %}
                        <th>{{ name }}</th>
                    {% endif %}
                {% endfor %}
            </tr>
        </thead>
        <tbody>
            {% for tableRow in dataTable.getRows %}
            <tr>
                {% for column in properties.columns_to_display %}
                    <td>{{ tableRow.getColumn(column)|default('-')|truncate(50)|rawSafeDecoded }}</td>
                {% endfor %}
            </tr>
            {% endfor %}
        </tbody>
    </table>
</div>