groovy
import java.util.*
class ExampleLibrary {
List<Integer> numbers = []
void addNumbers(int... values) {
numbers.addAll(values)
}
int sumNumbers() {
numbers.sum()
}
}
def library = new ExampleLibrary()
library.addNumbers(1, 2, 3, 4, 5)
println "Sum of numbers: ${library.sumNumbers()}"
