code: def tearDown(self) -> None:
      shutil.rmtree(self.temp_dir, ignore_errors=True)
  
file_path: headliner/tests/model/test_summarizer_bert.py
imports: import os
  import shutil
  import tempfile
  import unittest
  import numpy
  import tensorflow
  from transformers import BertTokenizer
  from headliner.losses import masked_crossentropy
  from headliner.model.bert_summarizer import BertSummarizer
  from headliner.preprocessing.bert_vectorizer import BertVectorizer
  from headliner.preprocessing.keras_tokenizer import KerasTokenizer
  from headliner.preprocessing.preprocessor import Preprocessor
label_desc: Use image node_id 2 for calling the TestSummarizerBert obj's underlying member method code with example usage: obj.tearDown() without return types