><span class="type-annotation">V</span> <span class="parameter-name">value</span></span>)</span>)
            <span class="returntype parameter">&#8594; <a href="dart-core/Map-class.html">Map</a><span class="signature">&lt;K2, V2&gt;</span></span>
          </span>
        </dt>
        <dd>
          Returns a new map where all entries of this map are transformed by
the given <code>f</code> function.
          
</dd>
        <dt id="putIfAbsent" class="callable">
          <span class="name"><a href="dart-