RemixIconEx.Document.booklet

You're seeing just the function booklet, go back to RemixIconEx.Document module for more information.
Link to this function

booklet(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Document.booklet()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M20.005 2C21.107 2 22 2.898 22 3.99v16.02c0 1.099-.893 1.99-1.995 1.99H4v-4H2v-2h2v-3H2v-2h2V8H2V6h2V2h16.005zM8 4H6v16h2V4zm12 0H10v16h10V4z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}