code: def create_sym(data_dir, track, wav):
      ori_path = path.join(f"{data_dir}/data/audio/16kHz/isolated", wav)
      wav_path = path.join(
          f"{data_dir}/data/audio/16kHz/isolated_{track}_track",
          *wav.split("/")[:-1],
      )
      if not path.exists(wav_path):
          os.makedirs(wav_path)
      if track == "1ch":
          new_wav = wav.split("/")[-1].split(".")[0] + ".wav"
          os.system(
              " ".join(
                  ["ln -s", ori_path, path.join(wav_path, new_wav)]
              )
          )
      elif track == "2ch":
          os.system(" ".join(["ln -s", ori_path, wav_path]))
  
imports: import argparse
  import os
  from os import path
label_desc: Use image node_id 1 for calling a global function with example usage: create_sym(data_dir, track, wav) without return types