如何在臀部菜单中添加分隔线

我制作了一个 python 脚本，它创建了一个 MacOS 状态栏项目，它显示了 youtube 统计信息。当您单击文本时，我想在下拉菜单中添加分隔符，但我无法执行此操作。（我在文本下的意思的图像）。我找到了很多例子，但它们都只适用__init__于类中的一个函数。如果我尝试向__init__类中添加一个函数，我会收到一条错误消息AttributeError: 'Sub_Counter' object has no attribute '_menu'。为什么会发生这种情况，如何解决？

我添加到__init_函数中的代码

self.menu = [
            "About",
            "No Icon",
            None,
            "Detailed Statistics:",
            None,
            "Quit",
            ]

没有__init__功能的普通代码

import rumps
import time
import sys
import os
from sty import fg
from googleapiclient.discovery import build


key = open(os.path.join(sys.path[0], './key.txt')).read().strip()
service = build('youtube', 'v3', developerKey=key)

subs = service.channels().list(
    part='statistics',
    id='UCERizKQbgpBXOck0R6t_--Q'
).execute()['items'][0]['statistics']['subscriberCount']

timers = ["1 secs","5 secs","10 secs","15 secs","20 secs","25 secs","30 secs","35 secs","45 secs","50 secs","1 Min"]

EXEC_TIMER = 60

class Sub_Counter(rumps.App):

    @rumps.timer(EXEC_TIMER)   
    def pull_data(self, _):
        self.sub_menu = timers
        subs = service.channels().list(
            part='statistics',
            id='UCERizKQbgpBXOck0R6t_--Q'
        ).execute()['items'][0]['statistics']['subscriberCount']

        a = (str(subs))
        self.icon = "logo.png"
        self.title = "Subscribers: " + str(a)
        self.notification = str(a) + " Subscribers"

    @rumps.clicked("About")
    def about(self, _=):
        rumps.notification("Youtube Subscriber Count", "Made by Roxiun using Python & rumps", "Shows Youtube Subscriber counts")


    @rumps.clicked("No Icon")
    def noicon(self, sender):
        sender.state = not sender.state
        self.icon = None


    @rumps.clicked("Detailed Statistics")
    def Detailed_Statistics(self, _):
        rumps.notification("You have:", self.notification , "Veiws Comming Soon")

if __name__ == "__main__":
    Sub_Counter("Loading...").run() #debug=True

我想做的事情的图像[用红色圈出 -（是的，就是这条线）]

提前致谢！