'>where</span> Collection : Collection, Collection.Element == Observable&lt;Self.Element&gt;</code></pre>
  </div>
</section><div class='content'><h2 id='return-value'>Return Value</h2><p>The observable sequence that merges the elements of the observable sequences.</p></div><section id="parameters" class="parameters">
  <h2>Parameters</h2>
  <dl>
    
      <dt class="param-name"><code>sources</code></dt>
      <dd class="param-content">
        <div class="content"><p>Collection of observable sequences to 