html
<table is="my-chart" chart-type="line-chart">
  <tbody is="line-chart-dataset" title="my-title" line-color="line-color" line-type="straight" >
     <tr><td>something<td>something
     <tr><td>something<td>something
     <tr><td>something<td>something
     <tr><td>something<td>something
     <tr><td>something<td>something
     ....
  </tbody>
</table>