lass="self-crumb">keys property</li>
    </ol>
    
    <h5>MapMixin class</h5>
    <ol>
      <li class="section-title"><a href="dart-collection/MapMixin-class.html#constructors">Constructors</a></li>
      <li><a href="dart-collection/MapMixin/MapMixin.html">MapMixin</a></li>
    
      <li class="section-title">
        <a href="dart-collection/MapMixin-class.html#instance-properties">Properties</a>
      </li>
      <li><a href="dart-collection/MapMixin/entries.html">entries</a></li>
      <li><a href="