code: def load_labels(filename):
      """Read in labels, one label per line."""
      return [line.rstrip() for line in tf.io.gfile.GFile(filename)]
  
file_path: tensorflow/tensorflow/examples/speech_commands/label_wav_dir.py
imports: import argparse
  import glob
  import sys
  import tensorflow
label_desc: Use image node_id 2 for calling a global function with example usage: load_labels(filename) and returns: unknown