code: def _is_list_of_tensors(
      lst: Sequence[object],
  ) -> TypeGuard[List[Tensor]]:
      return isinstance(lst, list) and all(
          isinstance(x, Tensor) for x in lst
      )
  
imports: from typing import TYPE_CHECKING, List, Optional, Sequence, Tuple, Union
  import torch
  from torch.utils.data import BatchSampler, DataLoader, Dataset, RandomSampler, SequentialSampler
  from typing_extensions import TypeGuard
  from kornia.core import Device, Tensor, stack
  from kornia.geometry.camera import PinholeCamera
  from kornia.io import ImageLoadType, load_image
  from kornia.nerf.core import Images, ImageTensors
  from kornia.nerf.samplers import RandomRaySampler, RaySampler, UniformRaySampler
label_desc: Use image node_id 2 for calling a global function with example usage: _is_list_of_tensors(lst) and returns: unknown