code: def __init__(self, file_like):
      self.file_like = file_like
  
imports: import torch
  from torch.utils.data import Dataset
  import io
  import os
  import pathlib
  from cryptography.fernet import Fernet
  from typing import BinaryIO, Union, IO, Optional
  import pickle
  from bigdl.nano.utils.common import invalidInputError
label_desc: Use image node_id 1 to create a new _opener object from inherited base classes: object with example: obj = _opener(file_like)