如何从密封类列表中获取任何特定元素

enum class RowType {
    ROW1,
    ROW2
   }

  sealed class RowModel() {
    object Title: RowModel()
    data class ItemType1(val name: String, val age: Int)
    data class ItemType2(val interest: IntrestModel)
  }

我有一份

var rowModelList : List<RowModel> = rowList

我想从rowmodellist中获取元素，其inrestmodel为itemtype2