code: def get_headers():
      content = {"message": "Hello World"}
      headers = {
          "X-Cat-Dog": "alone in the world",
          "Content-Language": "en-US",
      }
      return JSONResponse(content=content, headers=headers)
  
label_desc: Use image node_id 1 for calling a global function with example usage: get_headers() and returns: JSONResponse