class_docstr: Wraps the :attr:`worker_init_fn` argument for
  :class:`torch.utils.data.DataLoader` workers.
code: def __call__(self, worker_id: int) -> None:
      if self.func is not None:
          self.func(worker_id)
  
imports: import glob
  import logging
  import os
  import os.path
  import warnings
  from contextlib import contextmanager
  from typing import Any, Callable, Dict, List, Optional, Union
  import psutil
  import torch
  from torch_geometric.data import HeteroData
label_desc: Use image node_id 2 for calling the WorkerInitWrapper obj's underlying member method code with example usage: obj.__call__(worker_id) without return types