code: def play_source(source_path):
      """Play an audio file using pysoundcard."""
  
      from aubio import source
      from pysoundcard import Stream
  
      hop_size = 256
      f = source(source_path, hop_size=hop_size)
      samplerate = f.samplerate
  
      s = Stream(samplerate=samplerate, blocksize=hop_size)
      s.start()
      read = 0
      while 1:
          vec, read = f()
          s.write(vec)
          if read < hop_size:
              break
      s.stop()
  
label_desc: Use image node_id 1 for calling a global function with example usage: play_source(source_path) without return types