code: def _init_av():
      global _av_initialized
      if _av_initialized:
          return
      logger = logging.getLogger("libav.mp3")
      logger.setLevel(logging.ERROR)
      _av_initialized = True
  
file_path: audiocraft/audiocraft/data/audio.py
imports: from dataclasses import dataclass
  from pathlib import Path
  import logging
  import typing
  import numpy
  import soundfile
  import torch
  from torch.nn import functional
  import av
  import subprocess
  from .audio_utils import f32_pcm, normalize_audio
label_desc: Use image node_id 1 for calling a global function with example usage: _init_av() without return types