code: def test_iris(self) -> None:
      folder = os.path.join(examples_folder, "iris")
      self.assertEqual(
          os.system(
              f"python {os.path.join(folder, 'run_iris.py')} --ci 1"
          ),
          0,
      )
  
file_path: carefree-learn/tests/test_ml_example.py
imports: import os
  import unittest
label_desc: Use image node_id 5 for calling the TestExample obj's underlying member method code with example usage: obj.test_iris() without return types