ng will be used for trace naming.</td>
<td>None</td>
</tr>
<tr><td>logger</td>
<td>If set to True and logclass=None, use Python
getChild to set trace name.</td>
<td>None</td>
</tr>
</tbody>
</table>
<p>In addition to file name overrides, configuration dictionary can provide syntax used in these files and the environment root
tag under which environment variables are defined.</p>
</div>
<div class="section" id="updating-environment-variables">
<h1>Updating environment variables</h1>
<pre class="code python l