/// <reference types="node" resolution-mode="require"/>
import SignedMessageHeader from './header.js';
export default class SignedMessagePayload {
    static readonly PAYLOAD_SIGNATURE_PREFIX: Buffer;
    /** `true` if this is the final payload */
    readonly final: boolean;
    /** The NaCl detached signature for this payload */
    readonly signature: Uint8Array;
    /** This payload's data */
    readonly data: Uint8Array;
    constructor(final: boolean, signature: Uint8Array, data: Uint8Array);
    get encoded_data(): Buffer;
    /** The MessagePack encoded payload data */
    get encoded(): Buffer;
    static create(header: SignedMessageHeader, private_key: Uint8Array, data: Buffer, index: number | bigint, final?: boolean): SignedMessagePayload;
    static generateSignData(header_hash: Uint8Array, index: bigint, final: boolean, data: Uint8Array): Buffer;
    encode(): Buffer;
    static encodePayload(final: boolean, signature: Uint8Array, payload_chunk: Uint8Array): Buffer;
    static decode(encoded: any, unpacked?: boolean): SignedMessagePayload;
    verify(header: SignedMessageHeader, public_key: Uint8Array, index: bigint): void;
}