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kotlinlang

The Kotlin compiler is complaining about this function signature:
```fun snapDelta(delta: Duration, pixelSize: Duration, snapAnchors:SortedSet&lt;Duration&gt;, vararg targets: Duration): Duration```
Duration is the kotlin.time.Duration. It says `Forbidden vararg parameter type: Duration` . I can't find an explanation for why its forbidden in the docs (<https://kotlinlang.org/docs/functions.html#variable-number-of-arguments-varargs>)

it might be because `Duration` is a `value` class

<https://youtrack.jetbrains.com/issue/KT-33565/Allow-vararg-parameter-of-inline-class-type>