export declare class Bytes {
    private readonly base64;
    private constructor();
    static fromBase64String(base64: string): Bytes;
    static fromUint8Array(array: Uint8Array): Bytes;
    toBase64(): string;
    toUint8Array(): Uint8Array;
    toJSON(): {
        __type__: 'bytes';
        bytes: string;
    };
}