<details><summary>Example with mandatory variables not filled in</summary>

```yaml
---
extra:                        # Extra
  dyn_a:                      # dyn_{{ identifier }}
    var: example
```
</details>

<details><summary>Example with all variables modifiable</summary>

```yaml
---
rougail:                      # Rougail
  general:                    # Général
    varname:                  # No change
      - a
extra:                        # Extra
  var:                        # A variable
    - a
  dyn_a:                      # dyn_{{ identifier }}
    var: example
```
</details>

