OS_[0,1,2]) or whether or not the broker should retain the publish (MQTT_PUBLISH_RETAIN).</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>
<dl><dt><b>Examples: </b></dt><dd><a class="el" href="bio_publisher_8c-example.html#a5">bio_publisher.c</a>, <a class="el" href="openssl_publisher_8c-example.html#a5">openssl_publisher.c</a>, a