code: def test_dump(self):
      # test dump
      self.assertEqual(
          {
              "context": "Super Bowl 50 was an American football "
              "game to determine the champion "
              "of the National Football League (NFL) "
              "for the 2015 season. "
              "The American Football Conference (AFC) "
              "champion Denver Broncos "
              "defeated the National Football Conference"
              " (NFC) champion "
              "Carolina Panthers 24–10 to earn their "
              "third Super Bowl title. "
              "The game was played on February 7, 2016, "
              "at Levi's Stadium "
              "in the San Francisco Bay Area at Santa "
              "Clara, California. "
              "As this was the 50th Super Bowl, the "
              "league emphasized "
              'the "golden anniversary" with various '
              "gold-themed initiatives, "
              "as well as temporarily suspending the "
              "tradition of "
              "naming each Super Bowl game with Roman "
              "numerals "
              "(under which the game would have been "
              'known as "Super Bowl L"), '
              "so that the logo could prominently "
              "feature the Arabic numerals 50.",
              "question": "Which NFL team represented the AFC"
              " at Super Bowl 50?",
              "answers": [
                  {"text": "Denver Broncos", "answer_start": 177},
                  {"text": "Denver Broncos", "answer_start": 177},
                  {"text": "Denver Broncos", "answer_start": 177},
              ],
              "title": "Super_Bowl_50",
              "is_impossible": False,
              "sample_id": None,
          },
          mrc_sample.dump(),
      )
  
file_path: textflint/test/input/component/sample/test_mrc_sample.py
imports: import unittest
  from textflint.input.component.sample.mrc_sample import MRCSample
label_desc: Use image node_id 10 for calling the TestMRCSample obj's underlying member method code with example usage: obj.test_dump() without return types