code: def __init__(self, datasets: Iterable[Dataset]) -> None:
      super().__init__(datasets)
  
file_path: lavis/lavis/datasets/datasets/base_dataset.py
imports: import json
  from typing import Iterable
  import pandas
  import torch
  from torch.utils.data import Dataset, ConcatDataset
  from torch.utils.data.dataloader import default_collate
label_desc: Use image node_id 1 to create a new ConcatDataset object from inherited base classes: ConcatDataset with example: obj = ConcatDataset(datasets)