private.jo

class Box[T]
  private var value: T
end

def foo(x: Box[Int]): Int = x.value

def testSectionType(show: A.B.Show[Int]) = show(19)

def testSectionFun() = A.qux()

section A
  def bar(): Int = 10
  private def qux(): Int = 20

  private section B
    type Show[T] = T => String

    def testQux() = A.qux()
  end
end