procedure List.3 (#Attr.2, #Attr.3):
    let Test.13 : U64 = lowlevel ListLen #Attr.2;
    let Test.10 : Int1 = lowlevel NumLt #Attr.3 Test.13;
    if Test.10 then
        let Test.12 : I64 = lowlevel ListGetUnsafe #Attr.2 #Attr.3;
        let Test.11 : [C {}, C I64] = Ok Test.12;
        ret Test.11;
    else
        let Test.9 : {} = Struct {};
        let Test.8 : [C {}, C I64] = Err Test.9;
        ret Test.8;

procedure Test.1 (Test.2):
    let Test.6 : List I64 = Array [1i64, 2i64, 3i64];
    let Test.7 : U64 = 0i64;
    let Test.5 : [C {}, C I64] = CallByName List.3 Test.6 Test.7;
    dec Test.6;
    ret Test.5;

procedure Test.0 ():
    let Test.4 : {} = Struct {};
    let Test.3 : [C {}, C I64] = CallByName Test.1 Test.4;
    ret Test.3;