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go - range over interface{} which stores a slice

Given the scenario where you have a function which accepts t interface{}. If it is determined that the t is a slice, how do I range over that slice?

func main() {
    data := []string{"one","two","three"}
    test(data)
    moredata := []int{1,2,3}
    test(data)
}

func test(t interface{}) {
    switch reflect.TypeOf(t).Kind() {
    case reflect.Slice:
        // how do I iterate here?
        for _,value := range t {
            fmt.Println(value)
        }
    }
}

Go Playground Example: http://play.golang.org/p/DNldAlNShB

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