code: def VerifyStructure(self, parser_mediator, line):
      
      try:
        structure = self._LINE.parseString(line)
      except pyparsing.ParseException:
        logger.debug('Not a SkyDrive old log file')
        return False
  
      day_of_month, month, year, hours, minutes, seconds, milliseconds = (
          structure.date_time)
  
      time_elements_tuple = (
          year, month, day_of_month, hours, minutes, seconds, milliseconds)
  
      try:
        dfdatetime_time_elements.TimeElementsInMilliseconds(
            time_elements_tuple=time_elements_tuple)
      except ValueError:
        logger.debug(
            'Not a SkyDrive old log file, invalid date and time: {0!s}'.format(
                structure.date_time))
        return False
  
      return True
docs: Verify that this file is a SkyDrive old log file.
  
      Args:
        parser_mediator (ParserMediator): mediates interactions between parsers
            and other components, such as storage and dfvfs.
        line (str): line from a text file.
  
      Returns:
        bool: True if the line is in the expected format, False if not.