index.html">Semigroup</a> : <span class="keyword">functor</span> (<a href="Semigroup/argument-1-S/index.html">S</a> : <a href="../../../Bastet/Interface/index.html#module-type-SEMIGROUP">Bastet.Interface.SEMIGROUP</a>) <span>&#45;&gt;</span> <span class="keyword">functor</span> (<a href="Semigroup/argument-2-A/index.html">A</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