div class="odoc-spec"><div class="spec module-type" id="module-type-BaseDomainSig" class="anchored"><a href="#module-type-BaseDomainSig" class="anchor"></a><code><span><span class="keyword">module</span> <span class="keyword">type</span> <a href="module-type-BaseDomainSig/index.html">BaseDomainSig</a></span><span> = <span class="keyword">sig</span> ... <span class="keyword">end</span></span></code></div><div class="spec-doc"><p>signature common to the &quot;normal&quot; <code>Domain</code>, representing the