html">List</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="../../dart-core/int-class.html">int</a></span>&gt;</span></span>&gt;</span></span>
            <span class="name ">listen</span>
(<wbr><ol class="parameter-list"><li><span class="parameter" id="listen-param-onData"><span class="type-annotation">void</span> <span class="parameter-name">onData</span>(<ol class="parameter-list"><li><span class="parameter" id="param-event"><span class="type-annotation"><a href="../../dart-core/