This is a TYPO3 CMS extension to render native handlebars templates
Within the extension there are a few Handlebars helpers configured by default,
such as content, block, json, lookup. On the top of that we can add new
custom handlebars helper which can be declared in ext_localconf.php as follows
\Visol\Handlebars\HelperRegistry::getInstance()->register(
'foo',
function ($labels, $key) {
return $labels[$key];
}
);