如何使用Holoviews根据kdim的值为曲线上色？

import holoviews as hv
from holoviews import opts

data = {'x': [1, 2, 3, 4, 5],
        'y': [2, 4, 6, 8, 10],
        'kdim': [1, 2, 1, 2, 1]}

curve = hv.Curve(data, kdims=['x'], vdims=['y', 'kdim'])

curve.opts(color='kdim', cmap='viridis')

import holoviews as hv
from holoviews import opts

data = {'x': [1, 2, 3, 4, 5],
        'y': [2, 4, 6, 8, 10],
        'kdim': [1, 2, 1, 2, 1]}

curve = hv.Curve(data, kdims=['x'], vdims=['y', 'kdim'])
curve.opts(color='kdim', cmap='viridis')