code: def np_to_pcm(np_data, audio_format=DEFAULT_FORMAT):
      dtype = get_dtype(audio_format)
      np_data = np_data.squeeze()
      np_data = np_data * np.iinfo(dtype).max
      np_data = np_data.astype(dtype)
      return np_data.tobytes()
  
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 33 for calling a global function with example usage: np_to_pcm(np_data, audio_format) and returns: np_data