e of the topic to unsubscribe from.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>MQTT_OK</code> upon success, an <a class="el" href="group__api.html#gad0c901a8d30691ed0ca17915b691b7e7">MQTTErrors</a> otherwise. </dd></dl>

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