br>)
            <span class="returntype parameter">&#8594; <a href="dart-core/Map-class.html">Map</a><span class="signature">&lt;RK, RV&gt;</span></span>
          </span>
        </dt>
        <dd>
          Provides a view of this map as having <code>RK</code> keys and <code>RV</code> instances,
if necessary. <a href="dart-collection/MapMixin/cast.html">[...]</a>
          
</dd>
        <dt id="clear" class="callable">
          <span class="name"><a href="dart-collection/MapMixin/clear.html">clear</a><