code: def clean_test_env(self):
      cmd = "dlts_ssh pkill -9 -f /usr/bin/python"
      print(cmd)
      subprocess.run(
          cmd, shell=True, check=False, executable="/bin/bash"
      )
      time.sleep(20)
  
file_path: H2O/h2o_flexgen/benchmark/third_party/DeepSpeed/tests/model/Megatron_GPT2/test_common.py
imports: import unittest
  import subprocess
  import os
  import time
label_desc: Use image node_id 4 for calling the BaseTestCase obj's underlying member method code with example usage: obj.clean_test_env() without return types