export declare let _tweens: Tween[];
export declare let REVISION: string;
export declare let getAll: () => Tween[];
export declare let removeAll: () => void;
export declare let add: (tween: any) => void;
export declare let remove: (tween: any) => void;
export declare let update: (time: any) => boolean;
export declare class Tween {
    _object: any;
    _valuesStart: {};
    _valuesEnd: {};
    _valuesStartRepeat: {};
    _duration: number;
    _repeat: number;
    _yoyo: boolean;
    _isPlaying: boolean;
    _reversed: boolean;
    _delayTime: number;
    _startTime: number;
    _easingFunction: (k: number) => number;
    _interpolationFunction: (v: number[], k: number) => number;
    _chainedTweens: any[];
    _onStartCallback: any;
    _onStartCallbackFired: boolean;
    _onUpdateCallback: any;
    _onRepeatCallback: any;
    _onCompleteCallback: any;
    _onStopCallback: any;
    constructor(object: any);
    to(properties: any, duration: any): this;
    start(time?: number): this;
    stop(): this;
    stopChainedTweens(): void;
    delay(amount: any): this;
    repeat(times: any): this;
    yoyo(yoyo: any): this;
    easing(easing: any): this;
    interpolation(interpolation: any): this;
    chain(...tweens: any[]): this;
    onStart(callback: any): this;
    onUpdate(callback: any): this;
    onRepeat(callback: any): this;
    onComplete(callback: any): this;
    onStop(callback: any): this;
    update(time: any): boolean;
}
export declare let Easing: TweenEasing;
export declare let Interpolation: TweenInterpolation;