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import collection.immutable.SortedMap
object Test {
implicit val ord: Ordering[Array[Byte]] = Ordering.by((_: Array[Byte]).toIterable)
def main(args: Array[String]): Unit = {
val m = SortedMap(Array[Byte](1) -> 0)
println(m.to(Array[Byte](1)) flatMap (_._1.mkString))
println(m.from(Array[Byte](1)) flatMap (_._1.mkString))
}
}
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