使用Python googleapiclient下载Google Drive文件遇403错误求助

近几个月来，我一直使用Python的googleapiclient下载谷歌云端硬盘（Google Drive）中的文件，此前均无异常。但今日尝试下载所有文件时，均出现如下403错误：

HttpError: <HttpError 403 when requesting [API请求地址] returned "This file has been identified as malware or spam and cannot be downloaded.". Details: "[{'domain': 'global', 'reason': 'cannotDownloadAbusiveFile', 'message': 'This file has been identified as malware or spam and cannot be downloaded.'}]">

我已尝试将acknowledgeAbuse参数设置为True，这是此前建议的解决方法，但仍无法解决问题，依然收到相同错误信息，恳请技术支持。以下是我的代码：

from oauth2client.service_account import ServiceAccountCredentials
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
import io
from googleapiclient.http import MediaIoBaseDownload

scope = ['https://www.googleapis.com/auth/drive']
token = 'C:\Users\tomdr\gsheets_token.json'

credentials = ServiceAccountCredentials.from_json_keyfile_name(token, scope)

service = build('drive', 'v3', credentials=credentials)

#find file_id and filestring to download (won't link code, it's just trivial and not an issue)#

request = service.files().get_media(fileId=file_id, acknowledgeAbuse=True)
fh = io.FileIO(filestring, 'wb') 
downloader = MediaIoBaseDownload(fh, request)
done = False
while done is False:
    status, done = downloader.next_chunk()

内容的提问来源于stack exchange，提问作者Tom Dry