eters</dt><dd>
  <table class="params">
    <tr><td class="paramname">length</td><td>length of data </td></tr>
    <tr><td class="paramname">offset</td><td>offset </td></tr>
    <tr><td class="paramname">output</td><td>output buffer </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Buffer </dd></dl>

</div>
</div>
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