ln" class="callable inherited">
          <span class="name"><a href="dart-io/IOSink/writeln.html">writeln</a></span><span class="signature">(<wbr>[<span class="parameter" id="writeln-param-obj"><span class="type-annotation"><a href="dart-core/Object-class.html">Object</a></span> <span class="parameter-name">obj</span> = <span class="default-value">""</span></span> ])
            <span class="returntype parameter">&#8594; void</span>
          </span>
                  </dt>
        <dd class="inherited">
 