an> <span class="parameter-name">action</span>(<span class="parameter" id="action-param-key"><span class="type-annotation">K</span> <span class="parameter-name">key</span>, </span> <span class="parameter" id="action-param-value"><span class="type-annotation">V</span> <span class="parameter-name">value</span></span>)</span>)
      <div class="features">override</div>
    </section>
    <section class="desc markdown">
      <p>Applies <code>f</code> to each key/value pair of the map.</p>
<p>Calling <code>f</c