docs: def ts_to_dt(jwt_dict):
      """Convert timestamps in JWT to datetime objects.
  
      Args:
        jwt_dict: dict
          JWT with some keys containing timestamps.
  
      Returns:
        dict: Copy of input dict where timestamps have been replaced with
        datetime.datetime() objects.
  
      """
      d = jwt_dict.copy()
      for k, v in [v[:2] for v in CLAIM_LIST if v[2]]:
          if k in jwt_dict:
              d[k] = d1_common.date_time.dt_from_ts(jwt_dict[k])
      return d