import type { Entity } from "../traits/entity.js";
/**
 * Class Decorator!
 * Remember given class as possible parent to any kinds of child entities
 * Also enables syncing any previously remembered children kind on this constructor
 *
 * @example
 * ```ts
 * @canBeChild
 * @containsChildren
 * export class Container extends Entity<ContainerOptions> {
 *   // ...
 * }
 * ```
 *
 * @category Annotation
 */
export declare function containsChildren(parentConstructor: typeof Entity): void;