   <span class="returntype parameter">&#8594; dynamic</span>
          </span>
        </dt>
        <dd class="inherited">
          Look up the value of <code>key</code>, or add a new value if it isn't there. <a href="dart-core/Map/putIfAbsent.html">[...]</a>
          <div class="features">inherited</div>
</dd>
        <dt id="remove" class="callable inherited">
          <span class="name"><a href="dart-core/Map/remove.html">remove</a></span><span class="signature">(<wbr><span class="parameter" id="remo