lass="keyword">sig</span> ... <span class="keyword">end</span></code></div><div class="spec module-type" id="module-type-BIAPPLY"><a href="#module-type-BIAPPLY" class="anchor"></a><code><span class="keyword">module</span> <span class="keyword">type</span> <a href="module-type-BIAPPLY/index.html">BIAPPLY</a> = <span class="keyword">sig</span> ... <span class="keyword">end</span></code></div><div class="spec module-type" id="module-type-BIAPPLICATIVE"><a href="#module-type-BIAPPLICATIVE" class="anchor"></a><c