如何在Bokeh中使用customjs动态更新下拉菜单选项

from bokeh.io import curdoc
from bokeh.layouts import row
from bokeh.models import Select, CustomJS

select = Select(title="选择项：", options=["选项1", "选项2", "选项3"], value="选项1")

callback = CustomJS(args=dict(select=select), code="""
    // 获取当前选中的选项值
    var selected_value = select.value;

    // 根据选项值动态更新下拉菜单的选项
    if (selected_value == "选项1") {
        select.options = ["选项1", "选项2", "选项3"];
    } else if (selected_value == "选项2") {
        select.options = ["选项4", "选项5", "选项6"];
    } else if (selected_value == "选项3") {
        select.options = ["选项7", "选项8", "选项9"];
    }
""")

select.js_on_change('value', callback)

layout = row(select)

# 将布局添加到文档中
curdoc().add_root(layout)