func showMap(omap *omap.Map, data interface{}, name string,
width int) {
fmt.Println("original: ", data)
fmt.Print("omap keys: [")
gap := ""
omap.Do(func(key, _ interface{}) {
fmt.Print(gap, key)
gap = " "
})
fmt.Println("]")
fmt.Print("omap values: [")
gap = ""
omap.Do(func(_, value interface{}) {
fmt.Printf("%s%.*v", gap, width, value)
gap = " "
})
fmt.Println("]")
fmt.Println(omap.Len(), name)
}
