class_docstr: The interface to declare a tester to run integration tests against.
code: def __init__(self, debug=False, **args):
      self.args = args
      self.debug = debug
  
imports: from abc import ABC, abstractmethod
  import os
  import subprocess
  import typing
  from .util import log
label_desc: Use image node_id 1 to create a new Tester object  with example: obj = Tester(debug)