ent</a></span>&gt;</span></span>
                  </dt>
        <dd>
          Static factory designed to expose <code>boundary</code> events to event
handlers that are not necessarily instances of <a href="../dart-html/SpeechSynthesisUtterance-class.html">SpeechSynthesisUtterance</a>. <a href="../dart-html/SpeechSynthesisUtterance/boundaryEvent-constant.html">[...]</a>
                  
  <div>
            <span class="signature"><code>const EventStreamProvider&lt;SpeechSynthesisEvent&gt;(&#39;boundary&#