objects in this list.</p>
<p>The valid indices for a list are <code>0</code> through <code>length - 1</code>.</p>
        </section>
                <section class="summary source-code" id="source">
          <h2><span>Implementation</span></h2>
          <pre class="language-dart"><code class="language-dart">int get length =&gt; _source.length;</code></pre>
        </section>
</section>
        
        <section id="setter">
        
        <section class="multi-line-signature">
          <span class="ret