span>
  <span><span><span>(<span class="type-var">'a</span>, <span class="type-var">'b</span>)</span> <a href="#type-t">t</a></span> <span class="xref-unresolved">Base__Ppx_compare_lib</span>.compare</span></span></code></div></div></details></div><div class="odoc-spec"><div class="spec type anchored" id="type-compare"><a href="#type-compare" class="anchor"></a><code><span><span class="keyword">type</span> <span>'compare_a compare</span></span></code></div></div><div class="odoc-spec"><div class="spec value