rops</td><td>an MQTT V5 property structure. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the length in bytes of the properties when serialized. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a88f1d21556c2d23330d71357cd226a15">&#9670;&#160;</a></span>MQTTProperties_add()</h2>

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