type TestSum = int | string

struct Abc {
    s TestSum
    t TestSum
}

fn get_value[T](obj T) string {
    $for field in T.fields {
        field_value := obj.$(field.name)
        $if field_value is $sumtype {
            $for field_variant in field_value.variants {
                if field_value is field_variant {
                    dump(field_value)
                    $if field_value is $int {
                        dump('${field_value} is an int')
                    } $else $if field_value is $string {
                        dump('${field_value} is a string')
                    }
                }
            }
        }
    }
    return 'done'
}

fn main() {
    a := Abc{
        s: TestSum('foo')
        t: TestSum(1)
    }
    v := get_value(a)
    dump(v)
}