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<p>Get the PID of the device at the specified index. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">index</td><td>the index of the device </td></tr>
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  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>int the PID of the device </dd></dl>

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