The Kotlin compiler is complaining about this function signature:

fun snapDelta(delta: Duration, pixelSize: Duration, snapAnchors:SortedSet<Duration>, 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

I was just about to paste the same

interesting, thanks