n class="p">)</span>
            <span class="n">unknown_filenames</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">filenames</span><span class="p">[:</span><span class="n">chunk_len</span><span class="p">])</span>
            <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">unknown_filenames</span><span class="p">)</span> <span class="o">&gt;=</span> <span class="n">unknown_sample_count</span><span class="p">:</sp