random cases

    fun Any.print() = println(this.toString())

    data class SomeObject(val id: Int, val title: String)

    var mQuestionsList: Array<Any>? = arrayOf()
    for (i in 0..10) {
        mQuestionsList = mQuestionsList?.plus(
            SomeObject(
                i,
                ('a'..'z').toList().shuffled().take(10).joinToString().filter { it.isLetter() })
        )
    }

    ("item: " + mQuestionsList?.joinToString("\nitem: ")).print()

    mQuestionsList?.let {
        val indicesCache = mutableSetOf<Int>()
//        val itemsCache = mutableSetOf<Int>()
        repeat(it.count()) {
            val randomIdx = mQuestionsList.indices.random()
//            val randomItem = mQuestionsList[mQuestionsList.indices.random()] as SomeObject

            if (randomIdx !in indicesCache) {
                indicesCache.add(randomIdx)
                ("index: ${mQuestionsList[randomIdx]}").print()
            } else {
                ("cache already contains $randomIdx").print()
            }

//            if (randomItem.id !in itemsCache) {
//                itemsCache.add(randomItem.id)
//                ("item: $randomItem").print()
//            } else {
//                ("cache already contains $randomItem").print()
//            }

        }
        "cache contains indices: ${indicesCache.joinToString()}".print()
//        "cache contains items: ${itemsCache.joinToString()}".print()
    }