code: def __call__(
      self, data_it: Iterable[DataEntry], is_train: bool
  ) -> Iterable[DataEntry]:
      return data_it
  
imports: import abc
  from dataclasses import dataclass
  from typing import Callable, Iterable, Iterator, List
  from gluonts.core.component import equals, validated
  from gluonts.dataset.common import DataEntry, Dataset
  from gluonts.env import env
label_desc: Use image node_id 1 for calling the Identity obj's underlying member method code with example usage: obj.__call__(data_it, is_train) and returns: data_it