def weight_unit(self, weight_unit):
        """Sets the weight_unit of this MeasurementSettings.


        :param weight_unit: The weight_unit of this MeasurementSettings.
        :type: str
        """
        allowed_values = ["pound", "kilogram"]  # noqa: E501
        if weight_unit is not None and weight_unit not in allowed_values:
            raise ValueError(
                "Invalid value for `weight_unit` ({0}), must be one of {1}"  # noqa: E501
                .format(weight_unit, allowed_values)
            )

        self._weight_unit = weight_unit