code: def test_nothing(self):
      url = _generate_url(None, True)
      assert url == "https://www.statsmodels.org/stable/"
      url = _generate_url(None, False)
      assert url == "https://www.statsmodels.org/devel/"
  
file_path: statsmodels/statsmodels/tools/tests/test_web.py
imports: import pytest
  from numpy import array
  from statsmodels.regression.linear_model import OLS
  from statsmodels.tools.web import _generate_url, webdoc
label_desc: Use image node_id 3 for calling the TestWeb obj's underlying member method code with example usage: obj.test_nothing() without return types