docs: def parse_journal(journal):
      """Parses the USN Journal content removing duplicates
      and corrupted records.
  
      """
      events = [e for e in journal if not isinstance(e, CorruptedUsnRecord)]
      keyfunc = lambda e: str(e.file_reference_number) + e.file_name + e.timestamp
      event_groups = (tuple(g) for k, g in groupby(events, key=keyfunc))
  
      if len(events) < len(list(journal)):
          LOGGER.debug(
              "Corrupted records in UsnJrnl, some events might be missing.")
  
      return [journal_event(g) for g in event_groups]