&#8594; <a href="dart-async/Future-class.html">Future</a></span>         
        </dt>
        <dd>
          Get a future that will complete when the consumer closes, or when an
error occurs. This future is identical to the future returned by
<a href="dart-io/IOSink/close.html">close</a>.
                  <div class="features">read-only, override</div>
</dd>
        <dt id="encoding" class="property">
          <span class="name"><a href="dart-io/IOSink/encoding.html">encoding</a></span>
          <span 