module CallOptArgsFunc {
    static Int foo(Int a=0, Int b=99, Int c=-1) {
        return a + b + c;
    }

    void run() {
        @Inject Console console;
        console.print($"{foo()=}");
        console.print($"{foo(1)=}");
        console.print($"{foo(1, 2)=}");
        console.print($"{foo(1, 2, 3)=}");
    }
}