terleaved freely.</p>
<p>While a stream is being added using <a href="dart-io/IOSink/addStream.html">addStream</a>, any further attempts
to add or write to the <a href="dart-io/IOSink-class.html">IOSink</a> will fail until the <a href="dart-io/IOSink/addStream.html">addStream</a> completes.</p>
<p>It is an error to add data to the <a href="dart-io/IOSink-class.html">IOSink</a> after the sink is closed.</p>
    </section>
    
    <section>
      <dl class="dl-horizontal">

        <dt>Implemented types</dt>