="arrow">&#45;&gt;</span></span>
  <span><span class="optlabel">?pp_arrow</span>:<span>unit <span class="xref-unresolved">CCHashtbl</span>.printer</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span><a href="../index.html#type-t">t</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>
  <s