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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 _comparable(self):
 """Get a comparable version of the DatasetID. Without this DatasetIDs often raise an exception when compared in Python 3 due to None not being comparable with other types. """

        return self._replace(
            name='' if self.name is None else self.name,
            wavelength=tuple() if self.wavelength is None else self.wavelength,
            resolution=0 if self.resolution is None else self.resolution,
            polarization='' if self.polarization is None else self.polarization,
            calibration='' if self.calibration is None else self.calibration,
        )