<p>Returns a printable string description of an MQTT V5 property code. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">value</td><td>an MQTT V5 property code. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the printable string description of the input property code. NULL if the code was not found. </dd></dl>

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