我正在尝试弄清楚如何使用google drive api和python来更新文件权限和所有权。

import os
import pickle
import google.auth
from googleapiclient.discovery import build
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials

# 定义要更新权限和所有权的文件ID
file_id = 'your_file_id'

# 定义要更新的权限和所有权信息
new_permissions = [
    {
        'type': 'user',
        'role': 'writer',
        'emailAddress': 'user1@example.com'
    },
    {
        'type': 'user',
        'role': 'reader',
        'emailAddress': 'user2@example.com'
    }
]

def update_file_permissions(file_id, new_permissions):
    # 加载凭据
    creds = None
    if os.path.exists('token.pickle'):
        with open('token.pickle', 'rb') as token:
            creds = pickle.load(token)
    
    # 如果没有有效的凭据，则重新进行身份验证
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = google.auth.default(scopes=['https://www.googleapis.com/auth/drive'])
            creds = flow.run_local_server(port=0)
        
        # 保存凭据供下次使用
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)
    
    # 构建Google Drive API客户端
    service = build('drive', 'v3', credentials=creds)
    
    # 更新文件权限
    for permission in new_permissions:
        service.permissions().create(
            fileId=file_id,
            body=permission,
            fields='id'
        ).execute()

# 调用函数来更新文件权限和所有权
update_file_permissions(file_id, new_permissions)