How do I check if a downloaded file is damaged?

[Serelue]

I download the game and want to check the game file for corruption and I don't know how to do it.
Is there any way to check for corruption of game files?

My Code

import getpass
import sys
import os
from tqdm import tqdm

from steam.client import cdn
from steam.client import SteamClient
from steam.enums.common import EResult

# (Login Code)

if login_result == EResult.OK:
    print("Successfully login to Steam")
    print(client.username)
    cdn_client = cdn.CDNClient(client)

    game_path = "game\\"
    bytesize = 2048

    game_filelist = list(cdn_client.iter_files(224760))

    for gamefile in tqdm(game_filelist):
        if gamefile.seekable:
            os.makedirs(game_path + os.path.dirname(gamefile.filename), exist_ok=True)
            with open(game_path + gamefile.filename, 'wb') as f:
                for i in range(int((gamefile.size - (gamefile.size % bytesize)) / bytesize)):
                    f.write(gamefile.read(bytesize))
                f.write(gamefile.read((gamefile.size % bytesize)))
    
    # (Needed here)
    sys.exit(0)