code: def get_existing_audio_annotations(self):
      return [f.split("_")[0] for f in os.listdir(self.audio_root)]
  
file_path: lavis/lavis/datasets/datasets/yt8m_video_dialogue_datasets.py
imports: import torch
  import os
  import copy
  import random
  from PIL import Image
  from lavis.datasets.datasets.base_dataset import BaseDataset
label_desc: Use image node_id 2 for calling the YT8MDialDataset obj's underlying member method code with example usage: obj.get_existing_audio_annotations() and returns: unknown