code: def load_utt2spk(utt2spk_file):
      """Returns dictionary { uttid: spkid }."""
      lines = [
          line.strip().split(None, 1) for line in open(utt2spk_file)
      ]
      return {x[0]: x[1] for x in lines}
  
imports: from __future__ import print_function
  import io
  import os
  import subprocess
  import sys
  from functools import lru_cache
  import numpy
  import soundfile
label_desc: Use image node_id 6 for calling a global function with example usage: load_utt2spk(utt2spk_file) and returns: unknown