code: def __init__(self, data):
      self.data = data
  
file_path: MONAI/tests/test_iterable_dataset.py
imports: from __future__ import annotations
  import os
  import sys
  import tempfile
  import unittest
  import nibabel
  import numpy
  from monai.data import DataLoader, Dataset, IterableDataset
  from monai.transforms import Compose, LoadImaged, SimulateDelayd
label_desc: Use image node_id 1 to create a new _Stream object  with example: obj = _Stream(data)