/// <reference types="node" />
import { Sequence, Tx } from '@node-dlc/bitcoin';
import { MessageType } from '../MessageType';
import { IDlcMessage } from './DlcMessage';
/**
 * FundingInput contains information about a specific input to be used
 * in a funding transaction, as well as its corresponding on-chain UTXO.
 * Matches rust-dlc FundingInput struct.
 */
export declare class FundingInput implements IDlcMessage {
    static type: MessageType;
    /**
     * Creates a FundingInput from JSON data (e.g., from test vectors)
     * @param json JSON object representing funding input
     */
    static fromJSON(json: any): FundingInput;
    /**
     * Deserializes a funding_input message
     * @param buf
     */
    static deserialize(buf: Buffer): FundingInput;
    /**
     * Deserializes a funding_input message without TLV wrapper (for use in DlcOffer)
     * This matches rust-dlc behavior where FundingInput is in a vector without individual TLV wrappers
     * @param buf
     */
    static deserializeBody(buf: Buffer): FundingInput;
    /**
     * The type for funding_input message. funding_input = 42772
     */
    type: MessageType;
    length: bigint;
    inputSerialId: bigint;
    prevTx: Tx;
    prevTxVout: number;
    sequence: Sequence;
    maxWitnessLen: number;
    redeemScript: Buffer;
    scriptSigLength(): number;
    /**
     * Validates correctness of all fields
     * @throws Will throw an error if validation fails
     */
    validate(): void;
    /**
     * Converts funding_input to JSON (canonical rust-dlc format)
     */
    toJSON(): IFundingInputJSON;
    /**
     * Serializes the funding_input message into a Buffer
     */
    serialize(): Buffer;
    serializeBody(): Buffer;
}
export interface IFundingInputJSON {
    inputSerialId: number;
    prevTx: string;
    prevTxVout: number;
    sequence: number;
    maxWitnessLen: number;
    redeemScript: string;
}
