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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 _ParseSourcePathOption(self, options):
 """Parses the source path option. Args: options (argparse.Namespace):
 command line arguments. Raises: BadConfigOption: if the options are invalid. """

    self._source_path = self.ParseStringOption(options, self._SOURCE_OPTION)
    if not self._source_path:
      raise errors.BadConfigOption('Missing source path.')

    self._source_path = os.path.abspath(self._source_path)