code: def read_wav(wav_file):
      wav_file.seek(0)
      with wave.open(wav_file, "rb") as wav_file_reader:
          audio_format = read_audio_format_from_wav_file(
              wav_file_reader
          )
          pcm_data = wav_file_reader.readframes(
              wav_file_reader.getnframes()
          )
          return audio_format, pcm_data
  
imports: import collections
  import ctypes
  import io
  import math
  import numpy
  import os
  import pyogg
  import tempfile
  import wave
  from .helpers import LimitingPool
  from collections import namedtuple
  from .io import open_remote, remove_remote, copy_remote, is_remote_path
label_desc: Use image node_id 20 for calling a global function with example usage: read_wav(wav_file) and returns: audio_format,  pcm_data