How to get a reference when using interpolated tag?

tag a-tag
tag b-tag

let tag='a'

tag app-root
   def render
      <self>
        <{tag}-tag$myref> // Error 'The tag name provided ('a-table$myref') is not a valid name.'

Hei @i4m,

Please consider investing a few minutes in reading this guide http://www.catb.org/~esr/faqs/smart-questions.html

I would love to help you but it is not clear to me what kind of problem you are trying to solve here. It’s taking more time to figure out what you are trying todo. Please consider spending a little bit more time on your question. This will make it easier for people to understand what you are doing and then encourage them to help you. The way you have structured this question makes it every hard to help you.

Thanks.