dException-class.html">DeferredLoadException</a></li>
      <li><a href="dart-async/TimeoutException-class.html">TimeoutException</a></li>
    </ol>
  </div>

  <div id="dartdoc-main-content" class="col-xs-12 col-sm-9 col-md-8 main-content">
      <div><h1>Completer&lt;<wbr><span class="type-parameter">T</span>&gt; class </h1></div>

    <section class="desc markdown">
      <p>A way to produce Future objects and to complete them later
with a value or error.</p>
<p>Most of the time, the simplest way to crea