code: def test_POST_InvalidURL(self):
      url = ""
      data = {"foo": "bar"}
      with self.assertRaises(TypeError):
          self.rnw.session.post.return_value = self.mock_response(404)
          self.rnw.POST(url, data)
  
imports: import json
  import requests
  from requests.auth import HTTPBasicAuth
  from tabpy.tabpy_tools.rest import RequestsNetworkWrapper, ServiceClient
  import unittest
  from unittest.mock import Mock
label_desc: Use image node_id 9 for calling the TestRequestsNetworkWrapper obj's underlying member method code with example usage: obj.test_POST_InvalidURL() without return types