code: def _get_none_data_iter(size: int) -> Iterator:
      # Sized iterator for data as None
      for _ in range(size):
          yield None
  
imports: import functools
  import logging
  import math
  import time
  import warnings
  import weakref
  from collections import defaultdict, OrderedDict
  from collections.abc import Mapping
  from typing import Any, Callable, Dict, Generator, Iterable, Iterator, List, Optional, Tuple, Union
  from torch.utils.data import DataLoader
  from ignite.base import Serializable
  from ignite.engine.events import CallableEventWithFilter, EventEnum, Events, EventsList, RemovableEventHandle, State
  from ignite.engine.utils import _check_signature, _to_hours_mins_secs
label_desc: Use image node_id 1 for calling a global function with example usage: _get_none_data_iter(size) without return types