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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 _get_daily_data_collections(self, data_type, unit, values):
 """Return an empty data collection."""

        data_header = Header(data_type=data_type, unit=unit,
                             analysis_period=self.analysis_period,
                             metadata={'source': self._location.source,
                                       'country': self._location.country,
                                       'city': self._location.city})
        return HourlyContinuousCollection(data_header, values)