pan class="arrow">&#45;&gt;</span></span>
  <span><span><a href="#type-key">key</a> <span class="xref-unresolved">CCHashtbl</span>.printer</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span><span class="type-var">'a</span> <span class="xref-unresolved">CCHashtbl</span>.printer</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="xref-unresolved">CCHashtbl</span>.printer</span></span></code></div></div></de