/index.html">bastet</a> &#x00BB; <a href="../index.html">Bastet__Interface</a> &#x00BB; SEMIGROUPOID</nav><h1>Module type <code>Bastet__Interface.SEMIGROUPOID</code></h1></header><dl><dt class="spec type" id="type-t"><a href="#type-t" class="anchor"></a><code><span class="keyword">type</span> <span>('a, 'b) t</span></code></dt></dl><dl><dt class="spec value" id="val-compose"><a href="#val-compose" class="anchor"></a><code><span class="keyword">val</span> compose : <span><span>(<span class="type-var">'b</spa