如何从不同的线程/类启用计时器

import threading
import time

class TimerThread(threading.Thread):
    def __init__(self, interval, function, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.interval = interval
        self.function = function
        self.finished = threading.Event()

    def run(self):
        while not self.finished.is_set():
            self.function()
            time.sleep(self.interval)

    def stop(self):
        self.finished.set()

def my_function():
    print("Hello, I'm a function!")

# 创建一个计时器线程，每隔5秒运行一次my_function
timer_thread = TimerThread(5, my_function)

# 开始计时器线程
timer_thread.start()

# 运行一段时间后停止计时器线程
time.sleep(15)
timer_thread.stop()