code: def print_logs(self):
      for name, content in self.get_files("/tmp"):
          print(f"===== log start:  {name} ====")
          print(content.decode())
  
file_path: ray/python/ray/tests/conftest_docker.py
imports: import time
  import pytest
  from pytest_docker_tools import container, fetch, network, volume
  from pytest_docker_tools import wrappers
  import subprocess
  from typing import List
label_desc: Use image node_id 3 for calling the Container obj's underlying member method code with example usage: obj.print_logs() without return types