/**
 * This class is responsible for managing and controlling running tweens.
 */
export declare class TweenManager {
    private static _running;
    private static _runningChildren;
    /**
       * Stop the running tween with a specific id.
       * @param id Tween identifier.
       */
    static stopById(id: string): void;
    /**
       * Stop all running tweens.
       */
    static stopAll(): void;
    /**
       * Stop all running tweens with a specific tag.
       * @param tag - The tag to filter running tweens.
       */
    static stopAllByTag(tag: string): void;
    /**
       * Complete all running tweens.
       */
    static completeAll(): void;
    /**
       * Complete all running tweens with a specific tag.
       * @param tag - The tag to filter running tweens.
       */
    static completeAllByTag(tag: string): void;
}
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