">str</span> <span class="o">=</span> <span class="s2">&quot;CONTROL&quot;</span><span class="p">):</span>
        <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Writes ShengBTE CONTROL file from &#39;Control&#39; object</span>

<span class="sd">        Args:</span>
<span class="sd">            filename: A file name.</span>
<span class="sd">        &quot;&quot;&quot;</span>

        <span class="k">for</span> <span class="n">param</span> <span class="ow">in</span> <span class="bp">self<