/span> raise_error : 
  <span>?backtrace:<span class="xref-unresolved">IStdlib</span>.IStd.Caml.Printexc.raw_backtrace <span class="arrow">&#45;&gt;</span></span>
  <span><a href="#type-error">error</a> <span class="arrow">&#45;&gt;</span></span>
  <span>msg:string <span class="arrow">&#45;&gt;</span></span>
  <span class="type-var">'a</span></span></code></div></div><div class="odoc-spec"><div class="spec type" id="type-style" class="anchored"><a href="#type-style" class="anchor"></a><code><span><span clas