如何在Bokeh中实现多选小部件的Javascript回调

from bokeh.models import CheckboxGroup
from bokeh.layouts import column
from bokeh.plotting import curdoc
from bokeh.models.callbacks import CustomJS

checkbox_group = CheckboxGroup(labels=["Option 1", "Option 2", "Option 3"], active=[0, 1])

callback = CustomJS(args=dict(checkbox_group=checkbox_group), code="""
    // 获取选中的选项
    var selected_options = checkbox_group.active.map(i => checkbox_group.labels[i]);
    
    // 打印选中的选项
    console.log("Selected options:", selected_options);
""")

checkbox_group.js_on_change('active', callback)

layout = column(checkbox_group)

# 将布局添加到文档中
curdoc().add_root(layout)