import { Scene } from '@babylonjs/core/scene.js';
import { CreatedInstance } from './CreatedInstance';
export interface LifecycleListener<T> {
    onCreated?: (instance: CreatedInstance<T>, scene: Scene) => void;
    onParented: (parent: CreatedInstance<any>, child: CreatedInstance<any>) => any;
    onChildAdded: (child: CreatedInstance<any>, parent: CreatedInstance<any>) => any;
    /**
     * It is not set on when delay creation is enabled for this type (PhysicsImpostor/ShadowGenerator)
     * Some objects cannot be properly instantiated until their dependant objects (mesh/light source) are instantiated.
     */
    onMount: (instance: CreatedInstance<T>) => any;
    /**
     * Called on GUI controls, once they have been added as a control.
     */
    onAddedAsControl?: (instance: CreatedInstance<T>) => void;
    /**
     * When hosted instance is unmounted
     */
    onUnmount: () => void;
}