code: def videohandler(extension, data):
      if (
          extension
          not in "mp4 ogv mjpeg avi mov h264 mpg webm wmv".split()
      ):
          return None
  
      try:
          import torchvision.io
      except ImportError as e:
          raise ModuleNotFoundError(
              "Package `torchvision` is required to be installed for default video file loader."
              "Please use `pip install torchvision` or `conda install torchvision -c pytorch`"
              "to install the package"
          ) from e
  
      with tempfile.TemporaryDirectory() as dirname:
          fname = os.path.join(dirname, f"file.{extension}")
          with open(fname, "wb") as stream:
              stream.write(data)
              return torchvision.io.read_video(fname)
  
imports: import io
  import json
  import os.path
  import pickle
  import tempfile
  import torch
  from torch.utils.data.datapipes.utils.common import StreamWrapper
label_desc: Use image node_id 4 for calling a global function with example usage: videohandler(extension, data) and returns: None, torchvision