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// not exactly "pending", here as an example usage.
//
val manager = scala.tools.util.SignalManager
manager.requireInterval(3, manager.INT) {
case true => Console.println("\nPress ctrl-C again to exit.")
case false => System.exit(1)
}
manager("HUP") = println("HUP 1!")
manager("HUP").raise()
manager("HUP") += println("HUP 2!")
manager("HUP").raise()
manager("HUP") += println("HUP 3!")
manager("HUP").raise()
manager("HUP") = println("Back to HUP 1!")
manager("HUP").raise()
manager.dump()
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