Hi,
I am working on Virtualmin plugin to have a configurable server options in Plugin Options page. The documentation claims, that I can access my template_imput parameters with get_template function (see: https://www.virtualmin.com/documentation/developer/plugins).
However I get an error message: Undefined subroutine &nginx::get_template called at /usr/share/webmin/nginx/virtual_feature.pl.
I have used: local $tmpl = &get_template($_[0]->{'template'});
What would be the correct way to access my parameter?

get_template function
You will need to use &virtual_server::get_template , as that function is defined in the Virtualmin (virtual-server) module.