export declare function b64ToUint6(nChr: any): any;
export declare function base64DecToArr(sBase64: any, nBlockSize?: number): Uint8Array;
export declare function uint6ToB64(nUint6: any): any;
export declare function base64EncArr(aBytes: any): string;
export declare function UTF8ArrToStr(aBytes: any): string;
export declare function strToUTF8Arr(sDOMStr: any): any;
export declare function base64Decode(base64String: any): string;