code: def tearDown(self):
      pass
  
file_path: SUOD/suod/test/test_cost_predictor.py
imports: import os
  import sys
  import unittest
  from suod.models.cost_predictor import build_cost_predictor
label_desc: Use image node_id 3 for calling the TestCostPredictor obj's underlying member method code with example usage: obj.tearDown() without return types