code: def test_is_url(self):
      assert is_url("https://www.example.com")
      assert not is_url("not_a_url")
  
file_path: autogen/test/test_retrieve_utils.py
imports: import pytest
  import os
label_desc: Use image node_id 6 for calling the TestRetrieveUtils obj's underlying member method code with example usage: obj.test_is_url() without return types