e-annotation"><a href="dart-core/Duration-class.html">Duration</a></span> <span class="parameter-name">timeLimit</span>, {</span> <span class="parameter" id="timeout-param-onTimeout"><span class="type-annotation"><a href="dart-async/FutureOr-class.html">FutureOr</a><span class="signature">&lt;<wbr><span class="type-parameter">T</span>&gt;</span></span> <span class="parameter-name">onTimeout</span>()</span> })
      
    </section>
    <section class="desc markdown">
      <p>Time-out the future computation 