code: def convert_to_wav(filepath):
      """
      This function converts pcm files to wav files
  
      Arguments
      ---------
      filepath : str
          path to the pcm file
  
      Returns
      -------
      None
      """
  
      with open(filepath, "rb") as r:
          data = r.read()
          with wave.open(str(filepath.with_suffix(".wav")), "wb") as w:
              w.setparams((1, 2, 16000, 0, "NONE", "NONE"))
              w.writeframes(data)
  
imports: import argparse
  import multiprocessing
  import wave
  from pathlib import Path
  from tqdm import tqdm
label_desc: Use image node_id 1 for calling a global function with example usage: convert_to_wav(filepath) without return types