an class="kind-method">operator []</span> method</h1></div>

    <section class="multi-line-signature">
      <span class="returntype">dynamic</span>
            <span class="name ">operator []</span>
(<wbr><ol class="parameter-list"><li><span class="parameter" id="[]-param-key"><span class="type-annotation"><a href="../../dart-core/Object-class.html">Object</a></span> <span class="parameter-name">key</span></span></li>
</ol>)
      
    </section>
    <section class="desc markdown">
      <p>Retrieves the 