如何在Bokeh 1.1.0中将值显示在次要滚动条中

from bokeh.plotting import figure, show
from bokeh.models import RangeSlider, CustomJS

# 创建主要滚动条和次要滚动条
main_slider = RangeSlider(start=0, end=100, value=(20, 80), step=1, title="Main Slider")
sub_slider = RangeSlider(start=0, end=100, value=(20, 80), step=1, title="Sub Slider")

# 创建回调函数来更新次要滚动条的值
callback = CustomJS(args=dict(sub_slider=sub_slider, main_slider=main_slider), code="""
    sub_slider.value = main_slider.value;
""")

# 将回调函数与主要滚动条关联
main_slider.js_on_change('value', callback)

# 创建一个图表，并将滚动条添加到图表中
p = figure()
p.add_layout(main_slider, 'below')
p.add_layout(sub_slider, 'below')

# 显示图表
show(p)