code: def tearDownClass(cls):
      # Remove everything created with "get_temp_dir"
      rmtree(cls._dataset_dir)
  
file_path: petastorm/petastorm/tests/test_spark_utils.py
imports: import glob
  import os
  import unittest
  from shutil import rmtree
  from tempfile import mkdtemp
  import numpy
  from pyspark.sql import SparkSession
  from petastorm.spark_utils import dataset_as_rdd
  from petastorm.tests.test_common import create_test_dataset, TestSchema
label_desc: Use image node_id 2 for calling the TestSparkUtils obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types