an class="type-parameter">RK</span>, <span class="type-parameter">RV</span>&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>
                  <div class="features">override</div>
</dd>
        <dt id="clear" class="callable">
          <span class="name"><a href="dart-collection/MapMixin/clear.html">clear</a></span><