 <span class="arrow">&#45;&gt;</span></span> <span>exn <span class="arrow">&#45;&gt;</span></span> <span><span class="xref-unresolved">Stdlib</span>.Printexc.raw_backtrace <span class="arrow">&#45;&gt;</span></span> unit)</span> <span class="arrow">&#45;&gt;</span></span>
  <span>string <span class="arrow">&#45;&gt;</span></span>
  <span><span>(<span>unit <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'a</span>)</span> <span class="arrow">&#45;&gt;</span></span>
  <span class="type-var">