ass="spec include"><div class="doc"><details open="open"><summary><span class="def"><code><span class="keyword">include</span> <a href="../Monad2/index.html#module-type-Extension">Monad2.Extension</a> <span class="keyword">with</span> <span class="keyword">type</span> <span>('a, 'x) <a href="../Monad2/module-type-Extension/index.html#type-t">t</a></span> := <span><span>(<span class="type-var">'a</span>, <span class="type-var">'x</span>)</span> <a href="index.html#type-t">t</a></span></code></span></summary