const main = async () => {
const shiki = require('shiki')
const highlighter = await shiki.getHighlighter({ theme: 'monokai' })
const code = 'whatever'
const lang = 'txt'
console.log(highlighter.codeToHtml(code, lang))
}
main()generates
<pre class="shiki" style="background-color: #272822"><code><span style="color: undefined">whatever</span></code></pre>
generates