n> <span class="n">index</span><span class="o">=-</span><span class="mi">1</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;Insert audio track</span>

<span class="sd">        Args:</span>
<span class="sd">            name(str): Name of new track.</span>
<span class="sd">            index(int): Position to insert</span>

<span class="sd">        Returns:</span>
<span class="sd">            success(Item): New item</span>
<span class="sd">        &quot;&quot;&q