Як у Kotlin визначити об'єкт-одинак (singleton)?

Question

Answer

object MySingleton {     fun doSomething() {         println("Doing something")     } }

Answer

val MySingleton = object {     fun doSomething() {         println("Doing something")     } }

Answer

class MySingleton {     companion object {         fun doSomething() {             println("Doing something")         }     } }

Answer

singleton MySingleton {     fun doSomething() {         println("Doing something")     } }

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