code: def tearDown(self):
      self.client.load_world("Town03")
      # workaround: give time to UE4 to clean memory after loading (old assets)
      time.sleep(5)
      self.world = None
      self.client = None
  
file_path: carla/PythonAPI/test/smoke/__init__.py
imports: import glob
  import os
  import sys
  import unittest
  import carla
  import time
label_desc: Use image node_id 2 for calling the SmokeTest obj's underlying member method code with example usage: obj.tearDown() without return types