a href="dart-core/String-class.html">String</a></span>
          </span>
                  </dt>
        <dd class="inherited">
          Returns a string representation of this object.
                  <div class="features">inherited</div>
</dd>
        <dt id="waitUntil" class="callable inherited">
          <span class="name"><a href="dart-html/ExtendableEvent/waitUntil.html">waitUntil</a></span><span class="signature">(<wbr><span class="parameter" id="waitUntil-param-f"><span class="type-annotation"><a