<span class="returntype parameter">&#8594; <a href="dart-async/Stream-class.html">Stream</a><span class="signature">&lt;<wbr><span class="type-parameter">E</span>&gt;</span></span>
          </span>
                  </dt>
        <dd class="inherited">
          Transforms each element into a sequence of asynchronous events. <a href="dart-async/Stream/asyncExpand.html">[...]</a>
                  <div class="features">inherited</div>
</dd>
        <dt id="asyncMap" class="callable inherited">
          <sp