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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 _ParseComment(self, structure):
 """Parses a comment. Args: structure (pyparsing.ParseResults):
 structure parsed from the log file. """

    if structure[1] == 'Date:':
      self._year, self._month, self._day_of_month, _, _, _ = structure.date_time
    elif structure[1] == 'Fields:':
      self._ParseFieldsMetadata(structure)