code: def __getitem__(self, index):
      if index > len(self):
          invalidInputError(
              False,
              f"index out of bounds, index:{index}, length:{len(self)}",
          )
  
      if index < self.next_index:
          self._reset()
      if index > self.next_index:
          for _ in range(index - self.next_index):
              self._next()
  
      data = self._next()
      if self.collate_fn:
          data = self.collate_fn(data)
      return data
  
file_path: BigDL/python/nano/src/bigdl/nano/deps/openvino/tf/dataloader.py
imports: from openvino.tools.pot import DataLoader
  import tensorflow
  from bigdl.nano.utils.common import invalidInputError
label_desc: Use image node_id 2 for calling the KerasOpenVINODataLoader obj's underlying member method code with example usage: obj.__getitem__(index) and returns: data