Magento 2 how to get mage-init data in my custom JS

I have this code in my.phtml:

<script type="text/x-magento-init">
{
"*": {
"installment": <?= $block->getConfig(); ?>
}
}
</script>

I want to get the “parcel” data in my custom Js on the checkout page. How can I get?

When mage-init initializes my widget’s _create it returns with the filled data.

When I call requirejs it comes with empty data.

define(
[
'ko',
'installation'
],
function (ko, installment) {

help