        </li>
        <li>
          <a href="#toc_live-example-1">Live Example</a>
        </li>
        <li>
          <a href="#toc_live-example-2">Live Example</a>
        </li>
        <li>
          <a href="#toc_testing-observers">Testing Observers</a>
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        <li>
          <a href="#toc_live-example-3">Live Example</a>
        </li>
    </ul>
    
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