   <tr>
      <th>nprobe</th>
      <td><p>At query time, the number of cells used for approximate nearest
neighbor search.</p></td>
    </tr>
    <tr>
      <th>qtype</th>
      <td><p>Quantizer type. Must be one of "QT_8bit", "QT_4bit",
"QT_8bit_uniform", "QT_4bit_uniform", "QT_fp16", "QT_8bit_direct",
"QT_6bit".</p></td>
    </tr>
    <tr>
      <th>encode_residual</th>
      <td><p>Whether to encode residuals.</p></td>
    </tr>
    </table>

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