code: def tearDownClass(cls) -> None:
      shutil.rmtree(str(DATA_DIR.resolve()))
  
file_path: qlib/tests/test_get_data.py
imports: import shutil
  import unittest
  from pathlib import Path
  import qlib
  from qlib.data import D
  from qlib.tests.data import GetData
label_desc: Use image node_id 2 for calling the TestGetData obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types