Concatenate Anchors - Strings in Scrape sensor yaml

Configuration
1

Hi,
how to get this (using anchor) in scrape sensor?
I want obtain this:

- name: "fondo_lu0114721508_perc"

using “&isin” anchor:

homeassistant:
  customize:
    package.node_anchors:
      isin: &isin "lu0114721508"

What is the corrects syntax in yaml file (scrape sensor name) to get this?

name: “fondo_” + *isin + “_perc”

Thanks