estination_buffer_length`</td>
<td>0 - inf</td>
<td>0 (auto)</td>
<td>internal buffer length for description data</td>
</tr>
<tr>
<td>‘gvl`</td>
<td>true/false</td>
<td>false</td>
<td>enables global VM lock where possible</td>
</tr>
<tr>
<td>‘compression_level`</td>
<td>-131072 - 22</td>
<td>0 (auto)</td>
<td>compression level</td>
</tr>
<tr>
<td>‘window_log`</td>
<td>10 - 31</td>
<td>0 (auto)</td>
<td>maximum back-reference distance (power of 2)</td>
</tr>
<tr>
<td>‘hash_log`</td>
<td>6 - 30</td>
<