/**
 * @description 工具函数
 * @author wangfupeng
 */
/**
 * 获取随机数字符串
 * @param prefix 前缀
 * @returns 随机数字符串
 */
export declare function genRandomStr(prefix?: string): string;
/**
 * 过滤开头
 *
 */
export declare function cleanMathDelimiters(latex: string): string;
export declare function fixKatexFormula(latex: string): string;
export declare function composeFnDeal(latex: string): string;