code: def tearDownClass(cls):
      pass
  
file_path: PaddleDetection/ppdet/modeling/tests/test_base.py
imports: from __future__ import print_function
  import unittest
  import contextlib
  import paddle
  from paddle.static import Program
label_desc: Use image node_id 2 for calling the LayerTest obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types