kotlin-stdlib / kotlin.reflect / KTypeProjection / covariant covariant Common JVM JS Native 1.0 @JvmStatic fun covariant ( type : KType ) : KTypeProjection (source) Creates a covariant projection of a given type, denoted by the out modifier applied to a type. For example, in the type Array<out Number> , out Number is a covariant projection of the type of class Number .