Like binding normal DOM events with Svelte. Various Components in the Framework support forwarding their element's native events, or supply their own events for their own specific logic.
<script>
import {Check} from "@kahi-ui/framework";
function on_change(event) {
console.log("I was changed to:", state);
}
let state = false;
</script>
<Check bind:state on:change={on_change} />