lass="type-parameter">T</span>&gt;(<wbr><span class="parameter" id="expand-param-f"><span class="type-annotation"><a href="dart-core/Iterable-class.html">Iterable</a><span class="signature">&lt;<wbr><span class="type-parameter">T</span>&gt;</span></span> <span class="parameter-name">f</span>(<span class="parameter" id="f-param-element"><span class="type-annotation">E</span> <span class="parameter-name">element</span></span>)</span>)
      <div class="features">override</div>
    </section>
    <section clas