function generate(value, scope) {
  const className = scope.replace(/^source\./, '').replace(/\./g, '-')
  return `<div class="highlight highlight-${className}"><pre>${toHtml(
    highlighter.highlight(value, scope)
  )}
</pre></div>`
}
@param {string} value
  Value to highlight.
@param {string} scope
  Scope to highlight with.