Example.kt

class ViewModel {
    private val repository: Repository = Repository()
  
    fun doSomething() {
        repository.use()
    }
}

class Repository {
    private val objectA: A = A()
    private val objectB: B = B()
  
    fun use() {
        objectA.use()
        objectB.use()
    }
}

fun main {
    val vm = ViewModel()
    vm.doSomething()
}