class_docstr: The interface to declare a tester to run integration tests against.
code: def run_shell_command(self, cmd, **kwargs):
      cmd = " ".join(cmd)
      if self.debug:
          log(cmd)
      kwargs.update(shell=True)
      subprocess.check_call(cmd, **kwargs)
  
imports: from abc import ABC, abstractmethod
  import os
  import subprocess
  import typing
  from .util import log
label_desc: Use image node_id 2 for calling the Tester obj's underlying member method code with example usage: obj.run_shell_command(cmd) without return types