The highlight function from hugo already wraps the highlighted source code in
div > pre > code
e.g.
<div class="highlight">
<pre
style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4">
<code class="language-sh" data-lang="sh">echo hello world</code>
</pre>
</div>
So now we always delegate all that to the highlight function
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