e</code> is optional.</p>
<p>For example, the annotation is intentionally not used in the Dart platform
libraries, since they only depend on themselves.</p>
    </section>
        <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">const Object override = const _Override()</code></pre>
    </section>

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