code: def test_url_ok(self):
      res = networking.url_ok("https://www.gradio.app")
      assert res
  
file_path: gradio/test/test_networking.py
imports: import os
  import urllib
  import warnings
  import pytest
  from fastapi.testclient import TestClient
  import gradio
  from gradio import Interface, networking
label_desc: Use image node_id 1 for calling the TestURLs obj's underlying member method code with example usage: obj.test_url_ok() without return types