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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 rename_version(self, project, old_name, new_name):
 """Rename a version Resource on a project. :param project: ID or key of the project to get versions from :type project: str :param old_name: old name of the version to rename :type old_name: str :param new_name: new name of the version to rename :type new_name: str :rtype: None """

        version = self.get_project_version_by_name(project, old_name)
        if version:
            version.update(name=new_name)