-name">onCancel</span>(<span class="parameter" id="onCancel-param-subscription"><span class="type-annotation">StreamSubscription<span class="signature">&lt;<wbr><span class="type-parameter">T</span>&gt;</span></span> <span class="parameter-name">subscription</span></span>)</span> })
      <div class="features">inherited</div>
    </section>
    <section class="desc markdown">
      <p>Returns a multi-subscription stream that produces the same events as this.</p>
<p>The returned stream will subscribe to this