lti-line-signature">
      <span class="returntype">void</span>
      <span class="name ">operator []=</span>
(<wbr><span class="parameter" id="[]=-param-index"><span class="type-annotation"><a href="dart-core/int-class.html">int</a></span> <span class="parameter-name">index</span>, </span> <span class="parameter" id="[]=-param-value"><span class="type-annotation"><a href="dart-core/int-class.html">int</a></span> <span class="parameter-name">value</span></span>)
    </section>
    <section class="desc markd