EXACTLY_ONCE
Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)
EXACTLY_ONCE
A function parameter will be invoked exactly one time.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.contracts/-invocation-kind/-e-x-a-c-t-l-y_-o-n-c-e.html
