如何使用exchangelib从所有文件夹中获取最新的电子邮件？

from exchangelib import Account, Credentials, Configuration

credentials = Credentials(username='your_username', password='your_password')
config = Configuration(server='exchange_server_address', credentials=credentials)

account = Account(primary_smtp_address='your_email_address', config=config, autodiscover=False, access_type='delegate')

folders = account.root.get_folders()

latest_email = None
for folder in folders:
    items = folder.all().order_by('-datetime_received')[:1]
    if items:
        email = items[0]
        if latest_email is None or email.datetime_received > latest_email.datetime_received:
            latest_email = email