如何在Google Drive API v3中指定permissionID？

from googleapiclient.discovery import build
from google.oauth2 import service_account

# 设置身份验证凭据
credentials = service_account.Credentials.from_service_account_file(
    'path/to/service_account.json',
    scopes=['https://www.googleapis.com/auth/drive']
)

# 创建Drive API客户端
drive_service = build('drive', 'v3', credentials=credentials)

# 获取文件的权限信息
file_id = 'your_file_id'
response = drive_service.files().get(fileId=file_id, fields='permissions').execute()

# 找到要指定Permission ID的权限条目
permissions = response.get('permissions', [])
for permission in permissions:
    if permission['emailAddress'] == 'user@example.com':
        permission_id = permission['id']
        break

# 使用Permission ID来指定权限
new_role = 'writer'  # 设置新的权限角色
drive_service.permissions().update(
    fileId=file_id,
    permissionId=permission_id,
    body={'role': new_role}
).execute()