span> (<a href="Monad/argument-2-AA/index.html">AA</a> : <span class="keyword">sig</span> ... <span class="keyword">end</span>) <span>&#45;&gt;</span> <span class="keyword">sig</span> ... <span class="keyword">end</span></code></div><div class="spec module" id="module-Alt"><a href="#module-Alt" class="anchor"></a><code><span class="keyword">module</span> <a href="Alt/index.html">Alt</a> : <span class="keyword">functor</span> (<a href="Alt/argument-1-A/index.html">A</a> : <a href="../../../Bastet/Interface/i