如何将手势识别器添加到多个按钮？

from gesture_recognizer import GestureRecognizer

# 创建一个点击手势识别器
click_gesture_recognizer = GestureRecognizer('click')

# 将手势识别器添加到按钮1
button1.add_event_handler('on_click', click_gesture_recognizer.handle_click)

# 将手势识别器添加到按钮2
button2.add_event_handler('on_click', click_gesture_recognizer.handle_click)

# 编写事件处理程序
def handle_click_event(event):
    print('Button clicked!')

# 将事件处理程序添加到手势识别器
click_gesture_recognizer.add_event_handler('on_click', handle_click_event)