#45;&gt;</span> <span class="keyword">functor</span> (<a href="module-type-EQ_F/argument-2-Error/index.html">Error</a> : <a href="../Bastet/Interface/index.html#module-type-EQ">Bastet.Interface.EQ</a>) <span>&#45;&gt;</span> <a href="../Bastet/Interface/index.html#module-type-EQ">Bastet.Interface.EQ</a> <span class="keyword">with</span> <span class="keyword">type</span> <a href="module-type-EQ_F/index.html#type-t">t</a> = <span><span>(<a href="module-type-EQ_F/argument-1-Ok/index.html#type-t">Ok.t</a>, <a 