code: def _autocontrast(video: torch.Tensor, **kwargs) -> torch.Tensor:
      """
      Maximize contrast of a video by remapping its pixels per channel so that the lowest
      becomes black and the lightest becomes white.
  
      Args:
          video (torch.Tensor): Video tensor with shape (T, C, H, W).
      """
      return torchvision.transforms.functional.autocontrast(video)
  
imports: from typing import Any, Callable, Dict, List, Optional, Tuple, Union
  import torch
  import torchvision
  from torch import Tensor
  from torchvision.transforms.functional import InterpolationMode
label_desc: Use image node_id 2 for calling a global function with example usage: _autocontrast(video) and returns: torchvision