[
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    "end_time": "Mon, 04 Jan 2021 17:00:17 GMT",
    "end_time_unix_timestamp": 1609779617,
    "grade": "C-",
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  },
  {
    "end_time": "Fri, 12 Mar 2021 15:27:33 GMT",
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    "grade": "D+",
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]