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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def VerifyStructure(self, parser_mediator, lines):
 """Verify that this file is a Google Drive Sync log file. Args: parser_mediator (ParserMediator):
 mediates interactions between parsers and other components, such as storage and dfvfs. lines (str):
 one or more lines from the text file. Returns: bool: True if this is the correct parser, False otherwise. """

    try:
      structure = self._GDS_LINE.parseString(lines)
    except pyparsing.ParseException as exception:
      logger.debug('Not a Google Drive Sync log file: {0!s}'.format(exception))
      return False

    date_time = dfdatetime_time_elements.TimeElementsInMilliseconds()

    try:
      datetime_iso8601 = self._GetISO8601String(structure.date_time)
      date_time.CopyFromStringISO8601(datetime_iso8601)
    except ValueError as exception:
      logger.debug((
          'Not a Google Drive Sync log file, invalid date/time: {0!s} '
          'with error: {1!s}').format(structure.date_time, exception))
      return False

    return True