opy.</td>
                </tr>
                <tr>
                  <td>duration_updates</td>
                  <td>Number of times that the action must be updated until the intensity is equal to final_intensity.</td>
                </tr>
                <tr>
                  <td>final_intensity</td>
                  <td>Intensity when the action is updated duration_updates times.</td>
                </tr>
              </tbody>
            </table>
<p>This intensity must be in the range [0..1].</p>
