/**
 * 判断值类型
 */
export declare const TYPEOF: {
    isNumber(num: any): num is number;
    isObject(obj: any): boolean;
    isArray(arr: any): arr is any[];
    isString(str: any): str is string;
    isBoolean(str: any): str is boolean;
    isUndefined(str: any): str is undefined;
    isFunction(fun: any): fun is Function;
    isLetter(val: any): boolean;
    isChinese(val: any): boolean;
    isNumberText(val: any): boolean;
    isSpecialChar(val: any): boolean;
    isWhiteSpace(val: any): boolean;
    isValidPhoneNumber(countryCode: string, tel: string): boolean;
    isEnhancePassword(password: string): boolean;
    isSimplePassword(password: string): boolean;
    isUint8Buffer(buffer: any): buffer is Uint8Array;
};