s="keyword">val</span> return : <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <span class="xref-unresolved">Base__Option</span>.t</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-bind"><a href="#val-bind" class="anchor"></a><code><span><span class="keyword">val</span> bind : 
  <span><span><span class="type-var">'a</span> <span class="xref-unresolved">Base__Option</span>.t</span> <span 