code: def test_mlflow(self) -> None:
      try:
          import mlflow
          import sklearn
      except:
          return
      path = os.path.join(
          examples_folder, "mlflow", "california_with_mlflow.py"
      )
      self.assertEqual(os.system(f"python {path} --ci 1"), 0)
      self.assertTrue(os.path.isdir("mlruns"))
  
file_path: carefree-learn/tests/test_ml_example.py
imports: import os
  import unittest
label_desc: Use image node_id 2 for calling the TestExample obj's underlying member method code with example usage: obj.test_mlflow() without return types