RemixIconEx.Communication.chat_upload

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

chat_upload(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Communication.chat_upload()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M6.455 19L2 22.5V4a1 1 0 0 1 1-1h18a1 1 0 0 1 1 1v14a1 1 0 0 1-1 1H6.455zM4 18.385L5.763 17H20V5H4v13.385zM13 11v4h-2v-4H8l4-4 4 4h-3z" />
</svg>

example usage

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