WARNING
Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)
WARNING
Specifies that a warning should be reported on incorrect usages of this API.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-requires-opt-in/-level/-w-a-r-n-i-n-g.html