code: def tearDownClass(cls):
      del cls.model
      del cls.enc
  
file_path: tinygrad/test/models/test_whisper.py
imports: import unittest
  import pathlib
  from examples.whisper import init_whisper, load_file_waveform, transcribe_file, transcribe_waveform
  from tinygrad.helpers import CI, fetch
  from tinygrad import Device
label_desc: Use image node_id 2 for calling the TestWhisper obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types