pan> is_hack_init : <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> bool</span></code></div></div><div class="odoc-spec"><div class="spec module anchored" id="module-Hashtbl"><a href="#module-Hashtbl" class="anchor"></a><code><span><span class="keyword">module</span> Hashtbl</span><span> : <span class="xref-unresolved">Hashtbl</span>.S <span class="keyword">with</span> <span><span class="keyword">type</span> <span class="xref-unresolved">key</span> = <span class="xref-unresolved">t