declare function NodeTrackerStatics(staticClass: IStaticNodeTracker): void;
declare class NodeTracker {
    static nodeIdSymbol: symbol;
    private static nextId;
    private static watchedNodesById;
    static has(node: Node): boolean;
    static getNodeId(node: Node): number;
    static watchNode(node: Node): number;
    static track(node: Node): number;
    static getWatchedNodeWithId(id: number, throwIfNotFound?: boolean): Node | undefined;
    static restore(id: number, node: Node): void;
}