code: def __next__(self):
      try:
          data = next(self.iter_loader)
      except StopIteration:
          self._epoch += 1
          if hasattr(self._dataloader.sampler, "set_epoch"):
              self._dataloader.sampler.set_epoch(self._epoch)
          time.sleep(
              2
          )  # Prevent possible deadlock during epoch transition
          self.iter_loader = iter(self._dataloader)
          data = next(self.iter_loader)
  
      return data
  
imports: import os.path
  import platform
  import shutil
  import time
  import warnings
  import torch
  from torch.optim import Optimizer
  import annotator.uniformer.mmcv
  from .base_runner import BaseRunner
  from .builder import RUNNERS
  from .checkpoint import save_checkpoint
  from .hooks import IterTimerHook
  from .utils import get_host_info
label_desc: Use image node_id 3 for calling the IterLoader obj's underlying member method code with example usage: obj.__next__() and returns: data