able" class="anchor"></a><code><span class="keyword">module</span> <a href="Foldable/index.html">Foldable</a> : <a href="index.html#module-type-FOLDABLE_F">FOLDABLE_F</a></code></div><div class="spec module" id="module-Bifoldable"><a href="#module-Bifoldable" class="anchor"></a><code><span class="keyword">module</span> <a href="Bifoldable/index.html">Bifoldable</a> : <a href="../Bastet/Interface/index.html#module-type-BIFOLDABLE">Bastet.Interface.BIFOLDABLE</a> <span class="keyword">with</span> <span class=