| import type { BytesLike } from '../types/UtilsTypes.js';export declare class Base64 {    encode(input: string): string;    encodeIgnoreUtf8(inputBytes: BytesLike): string;    decode(input: string): string;    decodeToByteArray(input: string): number[];    _out2ByteArray(utftext: string): number[];    _utf8_encode(string: string): string;    _utf8_decode(utftext: string): string;}
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