lass="name" /><col class="desc" /></colgroup>
    <tr>
      <th>map</th>
      <td><p>a mapdeck map object</p></td>
    </tr>
    <tr>
      <th>data</th>
      <td><p>data to be used in the layer. All coordinates are expected to be
EPSG:4326 (WGS 84) coordinate system</p></td>
    </tr>
    <tr>
      <th>lon</th>
      <td><p>column containing longitude values</p></td>
    </tr>
    <tr>
      <th>lat</th>
      <td><p>column containing latitude values</p></td>
    </tr>
    <tr>
      <th>polyline</th>
