code: def dirWAVChangeFs(directory, samplerate, channels):
      if not os.path.isdir(directory):
          raise Exception("Input path not found!")
  
      audioBasicIO.convert_dir_fs_wav_to_wav(
          directory, samplerate, channels
      )
  
imports: from __future__ import print_function
  import argparse
  import os
  import numpy
  import glob
  import matplotlib.pyplot
  import ShortTermFeatures
  import MidTermFeatures
  import audioTrainTest
  import audioSegmentation
  import audioVisualization
  import audioBasicIO
  import scipy.io.wavfile
  import matplotlib.patches
label_desc: Use image node_id 2 for calling a global function with example usage: dirWAVChangeFs(directory, samplerate, channels) without return types