pan class="keyword">module</span> <span class="keyword">type</span> <a href="module-type-BITRAVERSABLE_F/index.html">BITRAVERSABLE_F</a> = <span class="keyword">functor</span> (<a href="module-type-BITRAVERSABLE_F/argument-1-A/index.html">A</a> : <a href="index.html#module-type-APPLICATIVE">APPLICATIVE</a>) <span>&#45;&gt;</span> <a href="index.html#module-type-BITRAVERSABLE">BITRAVERSABLE</a> <span class="keyword">with</span> <span class="keyword">type</span> <span>'a <a href="module-type-BITRAVERSABLE_F/i