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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, line):
 """Verifies if a line from a text file is in the expected format. Args: parser_mediator (ParserMediator):
 parser mediator. line (str):
 line from a text file. Returns: bool: True if the line is in the expected format, False if not. """

    try:
      structure = self._DPKG_LOG_LINE.parseString(line)
    except pyparsing.ParseException as exception:
      logger.debug(
          'Unable to parse Debian dpkg.log file with error: {0!s}'.format(
              exception))
      return False

    return 'date_time' in structure and 'body' in structure