in tools/src/main/scala/magnolify/tools/ParquetParser.scala [43:48]
private def putRepetition(repetition: Type.Repetition)(schema: Schema): Schema =
repetition match {
case Type.Repetition.REQUIRED => schema
case Type.Repetition.OPTIONAL => Optional(schema)
case Type.Repetition.REPEATED => Repeated(schema)
}