s if they are equal to the previous data event. <a href="../dart-async/Stream/distinct.html">[...]</a>
                  <div class="features">inherited</div>
</dd>
        <dt id="drain" class="callable inherited">
          <span class="name"><a href="../dart-async/Stream/drain.html">drain</a></span><span class="signature">&lt;<wbr><span class="type-parameter">E</span>&gt;</span><span class="signature">(<wbr><span class="parameter" id="drain-param-futureValue">[<span class="type-annotation">E</span> <span