...replacing the symbol names in the assembly template string with the operand's underlying numeric...

...it forces you to make a mixin template rather than a struct and a struct...

Hopefully we'll get tagged union in the future

- no templates
- proper support
- proper error...

You misunderstand, the function return type must match. If you want to accept a function...

I was recommended:
https://forum.dlang.org/thread/iblsgqqafagdgcsafhxv@forum.dlang.org

```
struct Result(T...

No, `Result(T)` is its own struct in your example.
And also, `SumType!(ParsResult!T...

That's the problem

Result(T) = SumType!(ParsResult!T, Err!T)

...t working you can explicitly instantiate the template to see why it isn't working...

...102] Cannot use traits(getAttributes) with overloaded template" was merged into stable:

- bf2c04df822eee078ec0debb151c09d794f709c9 by RazvanN7...

Hi. I can't handle template. It all looks sad, build ok, test error.

```
struct...