如何在不触发多次回调的情况下同步Bokeh Wdiget

from bokeh.io import curdoc
from bokeh.models import Button
from bokeh.layouts import column
import time

# 防抖装饰器
def debounce(wait):
    def decorator(fn):
        def debounced(*args, **kwargs):
            def call_it():
                fn(*args, **kwargs)
            try:
                debounced.t.cancel()
            except(AttributeError):
                pass
            debounced.t = threading.Timer(wait, call_it)
            debounced.t.start()
        return debounced
    return decorator

# 示例回调函数
@debounce(0.5)  # 设置等待时间为0.5秒
def update_data():
    print("Updating data...")
    # 这里放置实际的数据更新逻辑

# 创建按钮并绑定回调
button = Button(label="Update")
button.on_click(update_data)

# 将按钮添加到当前文档
curdoc().add_root(column(button))