import { Container } from "pixi.js";
import * as PIXI from "pixi.js";
export declare class DragHelper {
    private static _instance;
    static getInstance(): DragHelper;
    stage: Container;
    private readonly _helpPoint;
    private readonly _dragOffset;
    private _dragDisplayObject;
    enableDrag(displayObject: PIXI.Container): void;
    disableDrag(displayObject: PIXI.Container): void;
    private _dragHandler;
}