tlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-map/index.html">MutableMap</a><span class="token operator">&lt;</span><span class="token keyword"></span><a href="mutate-values-not-null.html">K</a><span class="token punctuation">, </span><span class="token keyword"></span><a href="mutate-values-not-null.html">V</a><span class="token operator">&gt;</span></div><p class="paragraph">Applies <a href="mutate-values-not-null.html">transform</a> to each entry in the map, removing the item if <code cl