Nested handlebars

All, I need to nest handlebars within one another. How would I achieve the following

Template 1 {{some-helper {{variablename}} }}

Template 2 {{template1 variablename='someValue'}}

Route {{template2}}

Here’s how I’ve solved it

Template 1 {{#each (some-helper tester) as |workflow|}} // do work {{/each}}

Template 2 {{template1 tester='value'}}

Can’t we do like this?