Interface Tween

interface Tween {
    completedLoops: number;
    currentStep: number;
    direction: -1 | 1;
    elapsed: number;
    justFinished: boolean;
    loop: LoopMode;
    onComplete?: (data: TweenEventData) => void;
    state: "pending" | "active" | "complete";
    steps: TweenStep[];
    totalLoops: number;
}