  
                <section class="desc markdown">
          <p>The <a href="dart-io/IOOverrides-class.html">IOOverrides</a> to use in the root <a href="dart-async/Zone-class.html">Zone</a>.</p>
<p>These are the <a href="dart-io/IOOverrides-class.html">IOOverrides</a> that will be used in the root Zone, and in
Zone's that do not set <a href="dart-io/IOOverrides-class.html">IOOverrides</a> and whose ancestors up to the root
Zone do not set <a href="dart-io/IOOverrides-class.html">IOOverrides</a>.</p>
       