如何在scala中从两个列表中获取通用列表

def getCommonList[A](list1: List[A], list2: List[A]): List[A] = {
  list1.intersect(list2)
}

val list1 = List(1, 2, 3, 4, 5)
val list2 = List(4, 5, 6, 7, 8)
val commonList = getCommonList(list1, list2)
println(commonList)

List(4, 5)