code: def record_sink(sink_path):
      """Record an audio file using pysoundcard."""
  
      from aubio import sink
      from pysoundcard import Stream
  
      hop_size = 256
      duration = 5  # in seconds
      s = Stream(blocksize=hop_size, channels=1)
      g = sink(sink_path, samplerate=int(s.samplerate))
  
      s.start()
      total_frames = 0
      try:
          while total_frames < duration * s.samplerate:
              vec = s.read(hop_size)
              # mix down to mono
              mono_vec = vec.sum(-1) / float(s.channels[0])
              g(mono_vec, hop_size)
              total_frames += hop_size
      except KeyboardInterrupt:
          duration = total_frames / float(s.samplerate)
          print("stopped after %.2f seconds" % duration)
      s.stop()
  
label_desc: Use image node_id 1 for calling a global function with example usage: record_sink(sink_path) without return types