s, label_ids)</span>

<span class="sd">    The given directory should have the structure::</span>

<span class="sd">        &lt;class1&gt;/sample1</span>
<span class="sd">        &lt;class1&gt;/sample2</span>
<span class="sd">        ...</span>
<span class="sd">        &lt;class1&gt;/optional sub directory/sample9</span>
<span class="sd">        &lt;class2&gt;/sample1</span>
<span class="sd">        &lt;class2&gt;/sample2</span>
<span class="sd">        ...</span>
<span class="sd">        &lt;class3&gt;/sam