#Wrap your template with this
[%
    USE Whostmgr;
    WRAPPER 'master_templates/master.tmpl'
        stylesheets = [
        ]
        scripts = [
        ]
-%]

<!--HTML/Template CONTENT -->

[% END %]

#In a seperate file have this to include the template

Cpanel::Template::process_template(
    'whostmgr',
    {
        'template_file' => 'sometemplate.tmpl'
    },
);

#Use this to include a template in another template(templateception)
[% PROCESS 'sometemplate.tmpl' -%]