export declare class BlackboardRef<T> {
    private readonly _uuid;
    private readonly _name;
    private readonly _children;
    protected readonly _marker: T;
    constructor(name: string, parent?: BlackboardRef<any>);
    createChild<U>(name: string): BlackboardRef<U>;
    get children(): ReadonlyArray<BlackboardRef<any>>;
    get descendants(): BlackboardRef<any>[];
    get uuid(): string;
    get name(): string;
}