1    do
2        let vector_ref = num/Vector3<u32>@ref 1 3 8
3        assert vector_ref.z == 8
4    
5    do
6        let f () =
7            let s = "t"
8            let t @owner = s.to_c_string
9            t[0] == 't'
10   
11       assert f == true
12