Custom Filter function

I want to add your filter values

let data = {
one : 'ONE STRING',
two : 'two string'
}

// html
<div id="test">
<div>{{ one | toLowerCase}}</div>
<div>{{ two }}</div>
</div>

Aromatic.registerFilter('toLowerCase', function(test) {
return test.test.toLowerCase();
});

// after compile
<div id="test">
<div>one string</div>
<div>two string</div>
</div>