code: def VerifyStructure(self, parser_mediator, line):
      
      try:
        structure = self._LOG_LINE.parseString(line)
      except pyparsing.ParseException:
        logger.debug('Not a Sophos Anti-Virus log file')
        return False
  
      # Expect spaces at position 9 and 16.
      if ' ' not in (line[8], line[15]):
        logger.debug('Not a Sophos Anti-Virus log file')
        return False
  
      try:
        dfdatetime_time_elements.TimeElements(
            time_elements_tuple=structure.date_time)
      except ValueError:
        logger.debug((
            'Not a Sophos Anti-Virus log file, invalid date and time: '
            '{0!s}').format(structure.date_time))
        return False
  
      return True
docs: Verify that this file is a Sophos Anti-Virus 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.