a> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="../index.html#type-t">t</a> <span class="arrow">&#45;&gt;</span></span>
  <a href="../index.html#type-t">t</a></span></code></div><div class="spec-doc"><p><code>add_one</code> on each attribute in the set</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-find_opt"><a href="#val-find_opt" class="anchor"></a><code><span><span class="keyword">val</span> find_opt : 
  <span><a href="../../PulseAbstractValue/index.html#t