class_docstr: The interface to declare a tester to run integration tests against.
code: def flight_request(self, port, json_path=None, scenario_name=None):
      raise NotImplementedError
  
imports: from abc import ABC, abstractmethod
  import os
  import subprocess
  import typing
  from .util import log
label_desc: Use image node_id 8 for calling the Tester obj's underlying member method code with example usage: obj.flight_request(port, json_path, scenario_name) without return types