code: def __init__(self) -> None:
      self.has_video = False
      self.video_timebase = Timebase(0, 1)
      self.video_duration = 0.0
      self.video_fps = 0.0
      self.has_audio = False
      self.audio_timebase = Timebase(0, 1)
      self.audio_duration = 0.0
      self.audio_sample_rate = 0.0
  
imports: import math
  import warnings
  from fractions import Fraction
  from typing import Dict, List, Optional, Tuple, Union
  import torch
  from ..extension import _load_library
label_desc: Use image node_id 1 to create a new VideoMetaData object  with example: obj = VideoMetaData()