eamConsumer-class.html">StreamConsumer</a>.</p>
<p>This method must not be called while an <a href="dart-io/IOSink/addStream.html">addStream</a> is incomplete.</p>
<p>NOTE: This is not necessarily the same as the data being flushed by the
operating system.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">Future flush();</code></pre>
    </section>

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