How do I add Jinja2 to my cherrypy project?

I have this tool right here

http://tools.cherrypy.org/wiki/Jinja

but wha开发者_StackOverflow社区t do I do with this?

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This tool allows you to render your response using jinga templates. Read the usage...

@cherrypy.expose
@cherrypy.tools.jinja(filename='index.html')
def controller(**kwargs):
    return {

    } # This dict is the template context