code: def _adjust_contrast(
      video: torch.Tensor, factor: float, **kwargs
  ) -> torch.Tensor:
      """
      Adjust contrast of an a video.
  
      Args:
          video (torch.Tensor): Video tensor with shape (T, C, H, W).
          factor (float): How much to adjust the contrast. Can be any non-negative
              number. 0 gives a solid gray video, 1 gives the original video while 2
              increases the contrast by a factor of 2.
      """
      return torchvision.transforms.functional.adjust_contrast(
          video, factor
      )
  
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 7 for calling a global function with example usage: _adjust_contrast(video, factor) and returns: torchvision