code: def tearDownClass(self):
      shutil.rmtree("tests/saved-models/")
  
file_path: finetune/tests/test_scheduler.py
imports: import os
  import unittest
  import time
  import shutil
  import warnings
  from finetune.base_models import RoBERTa, GPT
  from finetune import Classifier
  from finetune.scheduler import Scheduler
label_desc: Use image node_id 2 for calling the TestScheduler obj's underlying member method code with example usage: obj.tearDownClass() without return types