n> <span class="parameter-name">stream</span></span>)
      <div class="features">override</div>
    </section>
    <section class="desc markdown">
      <p>Transforms the provided <code>stream</code>.</p>
<p>Returns a new stream with events that are computed from events of the
provided <code>stream</code>.</p>
<p>The <a href="dart-async/StreamTransformer-class.html">StreamTransformer</a> interface is completely generic,
so it cannot say what subclasses do.
Each <a href="dart-async/StreamTransformer-class.h