import type { ParentTrait } from "./parent.js";
/**
 * @category Child
 */
export declare function isChild(entity: unknown): entity is ChildTrait;
/**
 * **Important trait**
 *
 * Entity can become a child of any other container/parent.
 *
 * @category Trait
 */
export declare class ChildTrait {
    /**
     * @category ChildTrait
     */
    parent: ParentTrait;
    /**
     * @category ChildTrait
     */
    idx: number;
    /**
     * Points out if this element can be target of any interaction
     *
     * @category ChildTrait
     */
    isInteractive(): boolean;
    /**
     * @category ChildTrait
     * @returns array of indexes for this entity access
     */
    get idxPath(): number[];
}