object Users  {
    val id: Long = 10
    val name : String ="name"
    val cityId : Long = 42
}


fun main(args: Array<String>) {
    slice(Users::name)
}

fun slice(vararg properties: KProperty<Users>) {
    properties.forEach { println(it.name) }
}

what should be

properties

type that will accept only Users properties?

KProperty1<Users, *>

should do the trick, but only if

class Users