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- scala> def testVA[T](param: T*) = println(param.length)
- testVA: [T](param: T*)Unit
- scala> val l = List(1,2,3)
- l: List[Int] = List(1, 2, 3)
- scala> testVA(l: _*)
- 3
- scala> testVA(l)
- 1
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