How to set limitation or just notice hint for function's argument - function

Question

how to set argument limitation like below?
// 1.
func ChooseColor(color string:"black|white" ) {
fmt.Println(color)
}
ChooseColor("white") // console "white"
ChooseColor("yellow") // console panic
If you feel like the noob can't understand the above solution, then alternately see below
// 2.
/**
* arg: "black|white"
*
*/
func ChooseColor(color string) {
fmt.Println(color)
}
ChooseColor( ) // IDE can notice "color: black || white"
please help me (T.T)

Answer 1

You can create your type Color and have constants for this type. Something like this
type Color string
const (
ColorBlack Color = "black"
ColorWhite Color = "white"
)
func ChooseColor(color Color) {
fmt.Println(color)
}

Answer 2

The "Go" way to do this is with godoc:
// ChooseColor selects a color. Valid colors are: black, white.
func ChooseColor(color string) {
if color != "black" && color != "white" {
/* handle the error condition */
}
/* ... */
}
This will appear in most IDEs.

Answer 3

This is the solution to 1.. The function panics if given argument is not expected one.
func ChooseColor(color string) {
switch color {
case "white", "black":
fmt.Println(color)
default:
panic(color)
}
}
And 2. is likely answered by Bakurits. This lets the IDE to catch what type of data will be passed to that function.
type Color bool
const (
ColorBlack Color = true
ColorWhite Color = false
)
func ChooseColor(color Color) {
if color {
fmt.Println("black")
} else {
fmt.Println("white")
}
}