v><div class="odoc-spec"><div class="spec value anchored" id="val-open_temp_file"><a href="#val-open_temp_file" class="anchor"></a><code><span><span class="keyword">val</span> open_temp_file : 
  <span><span class="optlabel">?perm</span>:int <span class="arrow">&#45;&gt;</span></span>
  <span><span class="optlabel">?in_dir</span>:string <span class="arrow">&#45;&gt;</span></span>
  <span>string <span class="arrow">&#45;&gt;</span></span>
  <span>string <span class="arrow">&#45;&gt;</span></span>
  string * 