     <td>
                                <div>
                                  <p><code>Data</code> that&rsquo;ll be written to <code>Descriptor</code> instance</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p><code>Single</code> that emits <code>