class_docstr: An auxiliary class for iterating through an image dataset.
code: def get_tensor_from_filename(self, filename):
      return self.get_tensor_from_filename_func(filename)
  
file_path: captum/tests/concept/test_concept.py
imports: from typing import cast, Iterable
  import torch
  from captum.concept._core.concept import Concept
  from captum.concept._utils.data_iterator import dataset_to_dataloader
  from tests.helpers.basic import BaseTest
  from torch.utils.data import IterableDataset
label_desc: Use image node_id 2 for calling the CustomIterableDataset obj's underlying member method code with example usage: obj.get_tensor_from_filename(filename) and returns: self