code: def load_wav(full_path):
      sampling_rate, data = read(full_path)
      return data, sampling_rate
  
imports: import math
  import os
  import random
  import torch
  import torch.utils.data
  import numpy
  from librosa.util import normalize
  from scipy.io.wavfile import read
  from librosa.filters import mel
label_desc: Use image node_id 1 for calling a global function with example usage: load_wav(full_path) and returns: data,  sampling_rate