https://liftweb.net/api/30/api/net/liftweb/builtin/snippet/WithParamVar$.html
WithParamVar - Lift Framework 3.0-RC3 - net.liftweb.builtin.snippet.WithParamVar
WithParamVar - Lift Framework 3.0 - RC3 - net.liftweb.builtin.snippet.WithParamVar
lift frameworkliftwebbuiltinsnippet