code: def update_batches() -> None:
      "Update id:md5.ext batches from Dencensooru's repository."
      batches_data  = requests.get(BATCHES_API_URL).json()
      batches_url   = {i["name"]: i["download_url"] for i in batches_data
                       if i["type"] == "file"}
      order_batches = sorted(batches_url, key=int)
  
      try:
          existing = set(os.listdir(BATCHES_DIR))
      except FileNotFoundError:
          BATCHES_DIR.mkdir(parents=True)
          existing = set()
  
      def get_batch(name: str) -> None:
          if name in existing and name != order_batches[-1]:
              return
  
          answer = requests.get(batches_url[name])
          try:
              answer.raise_for_status()
          except requests.RequestException:
              return
  
          with AtomicFile(BATCHES_DIR / name, "w") as file:
              file.write(answer.text)
  
      ThreadPool(8).map(get_batch, order_batchesf update_batches() -> None:
      "Update id:md5.ext batches from Dencensooru's repository."
      batches_data  = requests.get(BATCHES_API_URL).json()
      batches_url   = {i["name"]: i["download_url"] for i in batches_data
                       if i["type"] == "file"}
      order_batches = sorted(batches_url, key=int)
  
      try:
          existing = set(os.listdir(BATCHES_DIR))
      except FileNotFoundError:
          BATCHES_DIR.mkdir(parents=True)
          existing = set()
  
      def get_batch(name: str) -> None:
          if name in existing and name != order_batches[-1]:
              return
  
          answer = requests.get(batches_url[name])
          try:
              answer.raise_for_status()
          except requests.RequestException:
              return
  
          with AtomicFile(BATCHES_DIR / name, "w") as file:
              file.write(answer.text)
  
      ThreadPool(8).map(get_batch, order_batches)
docs: Update id:md5.ext batches from Dencensooru's repository.