export declare function isIP(string: string): false | RegExpMatchArray;
export declare function isIPv6(string: string): false | RegExpMatchArray;
export declare function isIPv4(string: string): false | RegExpMatchArray;
export declare function ipVersion(string: string): 6 | 4;
/** 对于一些常用的正则表达式的集合 */
export declare const lanIpReg: RegExp;
export declare const isLanIp: (str: string) => boolean;