def severity(self, severity):
        """Sets the severity of this Message.

        Message severity  # noqa: E501

        :param severity: The severity of this Message.  # noqa: E501
        :type: str
        """
        if severity is None:
            raise ValueError("Invalid value for `severity`, must not be `None`")  # noqa: E501
        allowed_values = ["MARKETING", "INFO", "WARN", "SEVERE"]  # noqa: E501
        if severity not in allowed_values:
            raise ValueError(
                "Invalid value for `severity` ({0}), must be one of {1}"  # noqa: E501
                .format(severity, allowed_values)
            )

        self._severity = severity
Sets the severity of this Message.

        Message severity  # noqa: E501

        :param severity: The severity of this Message.  # noqa: E501
        :type: str