如何为bokeh动画创建缩放滑块？

from bokeh.io import output_notebook, show
from bokeh.models import Slider
from bokeh.plotting import figure
from bokeh.layouts import column
from bokeh.io import curdoc

p = figure()

def update(attr, old, new):
    p.x_range.start = 0
    p.x_range.end = slider.value

slider = Slider(start=0, end=10, value=5, step=0.1, title="Scale")

slider.on_change('value', update)

layout = column(slider, p)
curdoc().add_root(layout)