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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 license_name(self, license_name):
 """Sets the license_name of this DatasetNewRequest. The license that should be associated with the dataset # noqa: E501 :param license_name: The license_name of this DatasetNewRequest. # noqa: E501 :type: str """

        allowed_values = ["CC0-1.0", "CC-BY-SA-4.0", "GPL-2.0", "ODbL-1.0", "CC-BY-NC-SA-4.0", "unknown", "DbCL-1.0", "CC-BY-SA-3.0", "copyright-authors", "other", "reddit-api", "world-bank"]  # noqa: E501
        if license_name not in allowed_values:
            raise ValueError(
                "Invalid value for `license_name` ({0}), must be one of {1}"  # noqa: E501
                .format(license_name, allowed_values)
            )

        self._license_name = license_name