a</span>)</span> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a> * <span class="type-var">'a</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-canon_fst'"><a href="#val-canon_fst'" class="anchor"></a><code><span><span class="keyword">val</span> canon_fst' : 
  <span><a href="#type-astate">astate</a> <span class="arrow">&#45;&gt;</span></span>
  <span><span>(<a href="../../PulseAbstractValue/index.html#type-t">Pulselib.PulseBasicInterface.Abst