<td><code>very-low</code>
     <tr>
      <td>129 to 256
      <td><code>low</code>
     <tr>
      <td>257 to 512
      <td><code>medium</code>
     <tr>
      <td>513 and greater
      <td><code>high</code>
   </table>
   <h2 class="heading settled" data-level="5" id="security"><span class="secno">5. </span><span class="content">Security and Privacy Considerations</span><a class="self-link" href="#security"></a></h2>
   <p>This API extension does not, per se, expose any new information, and none of the da