ort::lowest_layer"><span class="bold"><strong>lowest_layer</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Get a reference to the lowest layer. <br> <span class="silver"> &#8212;</span><br> Get a const
                  reference to the lowest layer.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="serial_port/native_handle.html" title="serial_port::native_handle"><span class="bold"><s