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fn foo[T](&myoption[T] o) -> int {
let int x = 5;
alt (o) {
case (none[T]) { }
case (some[T](?t)) {
x += 1;
}
}
ret x;
}
tag myoption[T] {
none;
some(T);
}
fn main() {
log(5);
}
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