final case classArbitrary[A](a: A) extends ReduceFunc[A] with Product with Serializable
This is intended to be the “cheapest” way to get a single value out of a
set, where it doesn’t matter which one (usually used in the case where all
entries are known to be the same).
final case classAvg[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classCount[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classFirst[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classLast[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classMax[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classMin[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classSum[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classUnshiftArray[A](a: A) extends ReduceFunc[A] with Product with Serializable
final case classUnshiftMap[A](a1: A, a2: A) extends ReduceFunc[A] with Product with Serializable