code: def _run_case(self, case):
      parser = MultipleChoiceQuestionAnswer.add_cmdline_args(
          ParlaiParser(False, False), None
      )
      opt = parser.parse_args(
          case.flags.split(" ") if len(case.flags) > 0 else []
      )
      multi_choice_qa = MultipleChoiceQuestionAnswer(opt)
      (
          question_text,
          _,
          answer_text,
          _,
      ) = multi_choice_qa.get_question_answer(
          {"question": Q, "answer_choices": [1, 2, 3], "answer_idx": 1}
      )
      self.assertEqual(
          case.question_text,
          question_text,
          f"Question text different in {case.friendly_name}",
      )
  
      self.assertEqual(
          case.answer_text,
          answer_text,
          f"Answer text different in {case.friendly_name}",
      )
  
file_path: ParlAI/tests/tasks/reasoning_teacher/test_question_answer.py
imports: import unittest
  from parlai.core.params import ParlaiParser
  import parlai.utils.testing
  from parlai.tasks.reasoning.question_answer import MultipleChoiceQuestionAnswer
  from dataclasses import dataclass
label_desc: Use image node_id 1 for calling the TestMultipleChoiceQuestionAnswer obj's underlying member method code with example usage: obj._run_case(case) without return types