le, <code class="code"><span class="constructor">Hashtbl</span>.length h</code> would not type-check, you must use
    <code class="code"><span class="constructor">IntHashtbl</span>.length</code>.<br>

</p><pre><span class="keyword">module type</span> <a href="Hashtbl.HashedType.html">HashedType</a> = <code class="code"><span class="keyword">sig</span></code> <a href="Hashtbl.HashedType.html">..</a> <code class="code"><span class="keyword">end</span></code></pre><div class="info">
The input signature of the