code: def tell(self) -> int:
      return self._cursor
  
file_path: vision/torchvision/prototype/utils/_internal.py
imports: import collections.abc
  import difflib
  import io
  import mmap
  import platform
  from typing import BinaryIO, Callable, Collection, Sequence, TypeVar, Union
  import numpy
  import torch
  from torchvision._utils import sequence_to_str
label_desc: Use image node_id 2 for calling the ReadOnlyTensorBuffer obj's underlying member method code with example usage: obj.tell() and returns: self