python fbchat从消息请求获取消息

Question

我尝试使用python fbchat为我的私人消息创建自动回复，这是我当前的代码：

from fbchat import Client
from fbchat.models import *
client = Client('email@gmail.com', 'password')

print('Own id: {}'.format(client.uid))

# Fetches a list of the 20 top threads you're currently chatting with
threads = client.fetchThreadList()
# Fetches the next 10 threads
threads += client.fetchThreadList(before=20, limit=10)

print("Threads: {}\n".format(threads))

问题是90％的消息到达消息请求中，如何从消息请求中获取消息列表？