import { HistoryConfig, SourceData } from '../typings';
export declare class History {
    /**
     * 保存历史数组的队列，越新的数据越靠前
     * @protected
     */
    protected historyList: SourceData[];
    /**
     * 当前回退/重做操作后对应的index下标，回退对应index++，重做对应index--
     * @protected
     */
    protected historyIndex: number;
    /**
     * 配置
     * @protected
     */
    protected config: HistoryConfig;
    constructor({ config }: {
        config: HistoryConfig;
    });
    save(data: SourceData): SourceData | undefined;
    revert(): SourceData | undefined;
    redo(): SourceData | undefined;
}