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                    <code class="code">keys dict</code> returns all the keys in the dictionary <code class="code">dict</code><br>
 
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<pre><span id="VALempty"><span class="keyword">val</span> empty</span> : <code class="type">unit -> 'a <a href="Js_dict.html#TYPEt">t</a></code></pre><div class="info ">
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