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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 _ParseVSSProcessingOptions(self, options):
 """Parses the VSS processing options. Args: options (argparse.Namespace):
 command line arguments. Raises: BadConfigOption: if the options are invalid. """

    vss_only = False
    vss_stores = None

    self._process_vss = not getattr(options, 'no_vss', False)
    if self._process_vss:
      vss_only = getattr(options, 'vss_only', False)
      vss_stores = getattr(options, 'vss_stores', None)

    if vss_stores:
      try:
        self._ParseVolumeIdentifiersString(vss_stores, prefix='vss')
      except ValueError:
        raise errors.BadConfigOption('Unsupported VSS stores')

    self._vss_only = vss_only
    self._vss_stores = vss_stores