code: def render_message_debug(datasette, request):
      if request.args.get("add_msg"):
          msg_type = request.args.get("type", "INFO")
          datasette.add_message(
              request,
              request.args["add_msg"],
              getattr(datasette, msg_type),
          )
      return {"body": "Hello from message debug"}
  
label_desc: Use image node_id 1 for calling a global function with example usage: render_message_debug(datasette, request) and returns: dict