code: def __iter__(self) -> Iterator[int]:
      for i in range(self.count):
          yield i
  
file_path: tnt/tests/utils/data/test_profile_dataloader.py
imports: import unittest
  from typing import Iterator
  import torch
  from torch.profiler import ProfilerActivity
  from torchtnt.utils.data.profile_dataloader import profile_dataloader
  from torchtnt.utils.env import init_from_env
label_desc: Use image node_id 2 for calling the DummyIterable obj's underlying member method code with example usage: obj.__iter__() without return types