typed.go
func (t Typed) Ints(key string) []int {
	return t.IntsOr(key, nil)
}
func (t Typed) Ints(key string) []int {
	return t.IntsOr(key, nil)
}
// Returns an slice of ints, or the specified slice
// Some conversion is done to handle the fact that JSON ints
// are represented as floats.