code: def remove_tempdir(cls):
      shutil.rmtree(cls.tempdir)
  
imports: import contextlib
  import logging
  import shutil
  import sys
  import tempfile
  import unittest
  from io import StringIO
  import pytest
  from xgboost import testing
  from pyspark.sql import SparkSession
  from xgboost.spark.utils import _get_default_params_from_func
label_desc: Use image node_id 2 for calling the TestTempDir obj's underlying member method code with example usage: obj.remove_tempdir(cls) without return types