import { Container } from 'pixi.js';
import { Layout } from '../Layout';
/**
 * Sorts the children of the layout based on their order in the parent container
 * syncing the Yoga tree with the Pixi display list.
 */
export declare function onChildAdded(layout: Layout, pixiParent: Container): boolean;
/**
 * Removes the child from the layout
 */
export declare function onChildRemoved(layout: Layout): void;