code: def _retry_download(self, func, times_left):
      try:
          return func()
      except URLError as e:
          if times_left == 0:
              raise e
          else:
              time.sleep(1)
              return self._retry_download(func, times_left - 1)
  
imports: import inspect
  import pytorch_lightning
  import torch
  import torch.nn
  import torch.nn.functional
  import torch.optim
  from pytorch_lightning.utilities import _module_available
  from urllib.error import URLError
  import time
label_desc: Use image node_id 2 for calling the LitDeepVisionModel obj's underlying member method code with example usage: obj._retry_download(func, times_left) and returns: func, self