code: def get_field(data, key):
      return np.array([e[key] for e in data])
  
file_path: delta/egs/iemocap/emo/v1/local/python/helper.py
imports: import os
  import csv
  import wave
  import sys
  import numpy
  import pandas
  import glob
  from tensorflow.keras.preprocessing.text import text_to_word_sequence
label_desc: Use image node_id 2 for calling a global function with example usage: get_field(data, key) and returns: np