old_contents: from Sound.core import Sound
  from Video.core import VideoStream
  import multiprocessing
  
  
  if __name__ == '__main__':
      shared_value = multiprocessing.Value('d', 4.0)
  
new_contents: from Sound.core import Sound
  from Video.core import VideoStream
  import multiprocessing
  import argparse
  
  
  def parsing():
      parser = argparse.ArgumentParser()
  
      parser.add_argument(
          "--music", help="The file path of music", default="./Sound/music.mp3"
          )
      parser.add_argument(
          "--time", help="Numbers of seconds", type=int, default=60
          )
      parser.add_argument(
          "--training",
          help="The file path of training",
          default="./Video/classifier.pkl"
          )
  
      args = parser.parse_args()
      return args
  
  
  if __name__ == '__main__':
      shared_value = multiprocessing.Value('d', 4.0)
      args = parsing()
  
subject: add args parsing to main.py