how to check telegram auth

check_hash.py

def check_hash(body):
    secret_key = sha256(os.environ.get("TG_TOKEN", "").encode()).digest()
    hash_string = body.pop("hash")
    data_string = [f"{key}={value}" for key, value in body.items()]
    data_string = "\n".join(sorted(data_string))
    return hmac.new(secret_key, data_string.encode(), sha256).hexdigest() == hash_string