export declare const isRule: (rule: RegExp) => (val: any) => boolean;
export declare const isCnName: (val: any) => boolean;
export declare const isEnName: (val: any) => boolean;
export declare const isEmail: (val: any) => boolean;
export declare const isChinese: (val: any) => boolean;
export declare const isUrl: (val: any) => boolean;
export declare const isVideo: (val: any) => boolean;
export declare const isImage: (val: any) => boolean;
export declare const isBase64: (val: any) => boolean;