code: def read_opus_duration(opus_file):
      pcm_buffer_size, audio_format = read_opus_header(opus_file)
      return get_pcm_duration(pcm_buffer_size, audio_format)
  
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 24 for calling a global function with example usage: read_opus_duration(opus_file) and returns: get_pcm_duration