e"><a href="Parsetree.html#TYPEextension">Parsetree.extension</a> -&gt; <a href="Location.html#TYPEerror">Location.error</a></code></pre>
<pre><span id="VALwarning_attribute"><span class="keyword">val</span> warning_attribute</span> : <code class="type">?ppwarning:bool -&gt; <a href="Parsetree.html#TYPEattribute">Parsetree.attribute</a> -&gt; unit</code></pre><div class="info ">
<div class="info-desc">
<p>Apply warning settings from the specified attribute.
      "ocaml.warning"/"ocaml.warnerror" (and varia