declare class Utils { private static code; static crc32(str: string): number; static ab2str(buf: ArrayBuffer): string; static str2ab(str: string): ArrayBuffer; static decrypt(data: any, key: any, iv: any): any; static encrypt(data: any, key: any, iv: any): string; static binToBase64(bitString: any): string; static base64ToBin(str: any): string; static stringToBin(str: string): string; static binToStr(bin: string): string; } export { Utils };
