@abc.abstractmethod
    def rollback(self):
:param decoder: A fully qualified name of the :class:`json.JSONDecoder`.
dataset/ETHPy150Open openstack/stacktach-winchester/winchester/pipeline_handler.py/PipelineHandlerBase.rollback--crossover with--dataset/ETHPy150Open foundit/Piped/piped/processors/json_processors.py/JsonDecoder.__init__