rollup-plugin-scss-lit/lib/css-to-module.js

Rollup plugin for importing Sass sources as constructable stylesheets to projects using lit (lit-html and lit-element) or fast-element.

import escapeTaggedTemplate from './escape-tag-template.js'

export default function cssToModule(css, tag, specifier) {
  return `import { ${tag} } from '${specifier}';
export default ${tag}\`${escapeTaggedTemplate(css)}\`;`
}