def METHOD_NAME(self, quantity):
    return {
        "General": {
            "original_filename": os.path.split(self.filename)[1],
            "title": "%s" % quantity,
            "date": self.original_metadata["Experiment_date"],
            "time": self.original_metadata["Experiment_time"],
        },
        "Signal": {
            "quantity": self._parse_quantity_units(quantity),
        },
    }