RemixIconEx.System.arrow_left_circle

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

arrow_left_circle(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.System.arrow_left_circle()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M12 2c5.52 0 10 4.48 10 10s-4.48 10-10 10S2 17.52 2 12 6.48 2 12 2zm0 18c4.42 0 8-3.58 8-8s-3.58-8-8-8-8 3.58-8 8 3.58 8 8 8zm0-9h4v2h-4v3l-4-4 4-4v3z" />
</svg>

example usage

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