Including helpers in a template definition.

$.templates({
    appTmpl: {
        markup:"#appTmpl",
        helpers: {
            supplierUtils: ...
        }
    }
});

Passing different helpers to a sub-template based on the context where it is used.

{{for suppliers tmpl="personTmpl" ~utils=~supplierUtils/}}

Accessing helper from nested template:

<b>ID:</b> <em>{{:~utils.format(id)}}</em>