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invariant

fun invariant(type: KType): KTypeProjection

Creates an invariant projection of a given type. Invariant projection is just the type itself, without any use-site variance modifiers applied to it. For example, in the type Set<String>, String is an invariant projection of the type represented by the class String.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.reflect/-k-type-projection/invariant.html