code: def default_buffer_size(self):
      return len(self.procs) * 5
  
imports: import atexit
  import numpy
  import queue
  import torch
  import torch.multiprocessing
  import slowfast.utils.logging
  from slowfast.datasets import cv2_transform
  from slowfast.visualization.predictor import Predictor
label_desc: Use image node_id 7 for calling the AsyncVis obj's underlying member method code with example usage: obj.default_buffer_size() and returns: unknown