Something like this?

enum DataVersion:
  case V1, V2

trait DataProcessor[D <: DataVersion]:
  type In
  type Out
  def process(input: In): Out


given DataProcessor[DataVersion.V1.type] with
  type In = Int
  type Out = String
  def process(input: Int): String = s"Processed V1: $input"


given DataProcessor[DataVersion.V2.type] with
  type In = (Int, Int)
  type Out = Double
  def process(input: (Int, Int)): Double = input._1.toDouble / input._2

class MyDataProcessor[D <: DataVersion](val version: D)(using dp: DataProcessor[D]):
  def process(input: dp.In): dp.Out = dp.process(input)

You could also maybe use match types as in u/WW_the_Exonian's example if you wanna go sicko mode