Give for all template children with controller or Middleware the Parent ID

<div kll-tc="media" kll-l>
	<div kll-tc="foo"></div>
</div>

Exemple

// ctrl/foo.js
export const foo = {
	onInit(state, el) {
// You can use directly el.lId
			const { media_id } = kll.getLegacyState(el)
			// Make thing
	}
}