/**
 * helper 基类
 *
 * @author chitanda
 * @date 2021-12-29 14:12:34
 * @export
 * @class HelperBase
 */
export declare abstract class HelperBase {
    /**
     * Creates an instance of HelperBase.
     *
     * @author chitanda
     * @date 2021-12-29 14:12:47
     * @param {string} tag 助手标识
     */
    constructor(Handlebars: IData, tag: string);
    /**
     * 助手执行
     *
     * @author chitanda
     * @date 2022-08-05 18:08:03
     * @abstract
     * @param {...unknown[]} args
     * @return {*}  {(string | boolean)}
     */
    abstract onExecute(...args: unknown[]): string | boolean;
}
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