encode in dotnet dcode in ansible example?

[roadfox]

Is there an example of how to decode a var in ansible decoded with this library.
i get an host inventory with a var containing a decoded string from this library, no matter what i try i am not able to decode it in ansible

what i try is something like this

- name: debug vault var
  vars:
    _vault: !vault {{ vaulted_var_from_inv }}
  debug:
    var: _vault

but i cannot get it to work, any hints?