code: def test_nested_dataset_sequential_access(self):
      ds1 = _create_dataset(range(10))
      ds2 = _create_dataset(range(10, 20))
      np_ds = dataset_utils.as_numpy((ds1, {"a": ds2}))
      np_ds1 = np_ds[0]
      np_ds2 = np_ds[1]["a"]
  
      self.assertEqual(
          list(range(10)), [int(el) for el in list(np_ds1)]
      )
      self.assertEqual(
          list(range(10, 20)), [int(el) for el in list(np_ds2)]
      )
  
imports: from etils import enp
  import numpy
  import tensorflow
  from tensorflow_datasets import testing
  from tensorflow_datasets.core import dataset_utils
label_desc: Use image node_id 6 for calling the DatasetAsNumPyTest obj's underlying member method code with example usage: obj.test_nested_dataset_sequential_access() without return types