es produces an element.
    </div>
  </div>
  
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    <section id='declaration' class='declaration'>
  <h2>Declaration</h2>
  <div class='declaration-group'>
    <pre class='source indented'><code><span class='token-keyword'>static</span> <span class='token-keyword'>func</span> <span class='token-identifier'>combineLatest</span>&lt;<span class='token-genericParameter'>O1</span>, <span class='token-genericPar