ehint"><span class="pre">int</span></span></span><a class="headerlink" href="#voyager.Index.__len__" title="Link to this definition">#</a></dt>
<dd><p>Returns the number of non-deleted vectors in this index.</p>
<p>Use the <code class="docutils literal notranslate"><span class="pre">len</span></code> operator to call this method:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="nb">len</span><span class="p">(</span><span class="n">index</span><span class="