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companionObject

val KClass<*>.companionObject: KClass<*>?

Platform and version requirements: Kotlin 1.1, JVM

Returns a KClass instance representing the companion object of a given class, or null if the class doesn't have a companion object.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.reflect.full/companion-object.html