code: def _split_generators(self, dl_manager):
      del dl_manager
      return {
          "train": self._generate_examples(num_examples=1000),
          "test": self._generate_examples(num_examples=725),
      }
  
imports: import pathlib
  from typing import Callable
  from unittest import mock
  import apache_beam
  from etils import epath
  import numpy
  import pytest
  import tensorflow
  from tensorflow_datasets.core import dataset_builder
  from tensorflow_datasets.core import dataset_info
  from tensorflow_datasets.core import dataset_utils
  from tensorflow_datasets.core import download
  from tensorflow_datasets.core import features
  from tensorflow_datasets.core import utils
label_desc: Use image node_id 2 for calling the DummyBeamDataset obj's underlying member method code with example usage: obj._split_generators(dl_manager) and returns: dict