} else if i, isFunc := v.(func(int) float64); isFunc {
	printFunction(i)                       // type of i is func(int) float64
} else {
	_, isBool := v.(bool)
	_, isString := v.(string)
	if isBool || isString {
		i := v                         // type of i is type of x (interface{})
		printString("type is bool or string")
	} else {

`he's perfectly idiotic!'  And she opened the door and went in.

  The door led right into a large kitchen, which was full of
smoke from one end to the other:  the Duchess was sitting on a
three-legged stool in the middle, nursing a baby; the cook was
leaning over the fire, stirring a large cauldron which seemed to
be full of soup.

  `There's certainly too much pepper in that soup!' Alice said to

`he's perfectly idiotic!'  And she opened the door and went in.

  The door led right into a large kitchen, which was full of
smoke from one end to the other:  the Duchess was sitting on a
three-legged stool in the middle, nursing a baby; the cook was
leaning over the fire, stirring a large cauldron which seemed to
be full of soup.

  `There's certainly too much pepper in that soup!' Alice said to