我有以下代碼，但是在工具提示中，我想顯示每個vbar的y_value。from bokeh.io import output_file, showfrom bokeh.models import ColumnDataSourcefrom bokeh.plotting import figurefrom bokeh.transform import dodgeoutput_file("dodged_bars.html")fruits = ['Apples', 'Pears', 'Nectarines', 'Plums', 'Grapes', 'Strawberries']years = ['2015', '2016', '2017']data = {'fruits' : fruits,        '2015'   : [2, 1, 4, 3, 2, 4],        '2016'   : [5, 3, 3, 2, 4, 6],        '2017'   : [3, 2, 4, 4, 5, 3]}source = ColumnDataSource(data=data)p = figure(x_range=fruits, y_range=(0, 10), plot_height=250, title="Fruit Counts by Year",           toolbar_location=None, tools="", tooltips=[('Count', '$y_max')])p.vbar(x=dodge('fruits', -0.25, range=p.x_range), top='2015', width=0.2, source=source,       color="#c9d9d3", legend="2015 ")p.vbar(x=dodge('fruits',  0.0,  range=p.x_range), top='2016', width=0.2, source=source,       color="#718dbf", legend="2016 ")p.vbar(x=dodge('fruits',  0.25, range=p.x_range), top='2017', width=0.2, source=source,       color="#e84d60", legend="2017 ")p.x_range.range_padding = 0.1p.xgrid.grid_line_color = Nonep.legend.location = "top_left"p.legend.orientation = "horizontal"show(p)有沒有辦法相應(yīng)地顯示每個vbar的y_value？散景顯示