//lint:ignore U1000 (dev-only)
func printJSON(i interface{}, prefix ...string) {
	pre := fmt.Sprintf("%T>>>", i)
	if len(prefix) == 1 {
		pre = prefix[0] + ">"
	}
	data, err := json.MarshalIndent(i, pre+"  ", "  ")
	if err != nil {
		panic(err)
	}
	fmt.Println(pre + "  " + string(data))
}