write a code for a downloader for telegram bot in python

main.py
from telegram import Update
from telegram.ext import Updater, CommandHandler, CallbackContext

def start(update: Update, context: CallbackContext) -> None:
    update.message.reply_text('Welcome to the Telegram Downloader Bot! Send me the link to the file you want to download.')

def download_file(update: Update, context: CallbackContext) -> None:
    file_url = update.message.text
    # Add your file download logic here
    # You can use libraries like requests or urllib to download the file
    # Once the file is downloaded, you can send it to the user using context.bot.send_document()

def main() -> None:
    updater = Updater("YOUR_BOT_TOKEN")
    dispatcher = updater.dispatcher
    dispatcher.add_handler(CommandHandler("start", start))
    dispatcher.add_handler(MessageHandler(Filters.text & ~Filters.command, download_file))
    updater.start_polling()
    updater.idle()

if __name__ == '__main__':
    main()
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