s="type-parameter">RK</span>, <span class="type-parameter">RV</span>&gt;(<wbr>)
      <div class="features">override</div>
    </section>
    <section class="desc markdown">
      <p>Provides a view of this map as having <code>RK</code> keys and <code>RV</code> instances,
if necessary.</p>
<p>If this map is already a <code>Map&lt;RK, RV&gt;</code>, it is returned unchanged.</p>
<p>If this set contains only keys of type <code>RK</code> and values of type <code>RV</code>,
all read operations will work correct