RemixIconEx.Device.install

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

install(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Device.install()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M9 2v2H5l-.001 10h14L19 4h-4V2h5a1 1 0 0 1 1 1v18a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1V3a1 1 0 0 1 1-1h5zm9.999 14h-14L5 20h14l-.001-4zM17 17v2h-2v-2h2zM13 2v5h3l-4 4-4-4h3V2h2z" />
</svg>

example usage

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