-parameter">K2</span>, <span class="type-parameter">V2</span>&gt;(<wbr><span class="parameter" id="map-param-transform"><span class="type-annotation"><a href="dart-core/MapEntry-class.html">MapEntry</a><span class="signature">&lt;<wbr><span class="type-parameter">K2</span>, <span class="type-parameter">V2</span>&gt;</span></span> <span class="parameter-name">transform</span>(<span class="parameter" id="param-key"><span class="type-annotation">K</span> <span class="parameter-name">key</span>, </span> <span c