code: def create_folder(self, folder, project, path):
          
          route_values = {}
          if project is not None:
              route_values['project'] = self._serialize.url('project', project, 'str')
          if path is not None:
              route_values['path'] = self._serialize.url('path', path, 'str')
          content = self._serialize.body(folder, 'Folder')
          response = self._send(http_method='PUT',
                                location_id='a906531b-d2da-4f55-bda7-f3e676cc50d9',
                                version='5.0-preview.2',
                                route_values=route_values,
                                content=content)
          return self._deserialize('Folder', response)
docs: CreateFolder.
          [Preview API] Creates a new folder.
          :param :class:`<Folder> <azure.devops.v5_0.build.models.Folder>` folder: The folder.
          :param str project: Project ID or project name
          :param str path: The full path of the folder.
          :rtype: :class:`<Folder> <azure.devops.v5_0.build.models.Folder>`