code: def set_release_description(self, description, **kwargs):
          
          id = self.get_id().replace('/', '%2F')
          path = '%s/%s/release' % (self.manager.path, id)
          data = {'description': description}
          if self.release is None:
              try:
                  server_data = self.manager.gitlab.http_post(path,
                                                              post_data=data,
                                                              **kwargs)
              except exc.GitlabHttpError as e:
                  raise exc.GitlabCreateError(e.response_code, e.error_message)
          else:
              try:
                  server_data = self.manager.gitlab.http_put(path,
                                                             post_data=data,
                                                             **kwargs)
              except exc.GitlabHttpError as e:
                  raise exc.GitlabUpdateError(e.response_code, e.error_message)
          self.release = server_data
docs: Set the release notes on the tag.
  
          If the release doesn't exist yet, it will be created. If it already
          exists, its description will be updated.
  
          Args:
              description (str): Description of the release.
              **kwargs: Extra options to send to the server (e.g. sudo)
  
          Raises:
              GitlabAuthenticationError: If authentication is not correct
              GitlabCreateError: If the server fails to create the release
              GitlabUpdateError: If the server fails to update the release