code: def tearDown(self) -> None:
      self.root.cleanup()
  
file_path: mmocr/tests/test_datasets/test_preparers/test_parsers/test_icdar_txt_parsers.py
imports: import os.path
  import tempfile
  import unittest
  from mmocr.datasets.preparers.parsers.icdar_txt_parser import ICDARTxtTextDetAnnParser, ICDARTxtTextRecogAnnParser
  from mmocr.utils import list_to_file
label_desc: Use image node_id 6 for calling the TestIC15Parsers obj's underlying member method code with example usage: obj.tearDown() without return types