/// <reference types="node" />
import { AssetInfo, FeeRate } from '@xchainjs/xchain-client';
import { Address } from '@xchainjs/xchain-util';
import { Client as UTXOClient, PreparedTx, TxParams, UTXO, UtxoClientParams } from '@xchainjs/xchain-utxo';
import * as Bitcoin from 'bitcoinjs-lib';
import { AddressFormat } from './types';
export declare const defaultBTCParams: UtxoClientParams;
/**
 * Custom Bitcoin client
 */
declare abstract class Client extends UTXOClient {
    protected addressFormat: AddressFormat;
    /**
     * Constructor
     * Initializes the client with network type and other parameters.
     * @param {UtxoClientParams} params
     */
    constructor(params?: UtxoClientParams & {
        addressFormat?: AddressFormat;
    });
    /**
     * Get BTC asset info.
     * @returns {AssetInfo} BTC asset information.
     */
    getAssetInfo(): AssetInfo;
    /**
     * Validate the given Bitcoin address.
     * @param {string} address Bitcoin address to validate.
     * @returns {boolean} `true` if the address is valid, `false` otherwise.
     */
    validateAddress(address: string): boolean;
    /**
     * Compile memo into a buffer.
     * @param {string} memo Memo to compile.
     * @returns {Buffer} Compiled memo.
     */
    protected compileMemo(memo: string): Buffer;
    /**
     * Get transaction fee from UTXOs.
     * @param {UTXO[]} inputs UTXOs to calculate fee from.
     * @param {FeeRate} feeRate Fee rate.
     * @param {Buffer | null} data Compiled memo (Optional).
     * @returns {number} Transaction fee.
     */
    protected getFeeFromUtxos(inputs: UTXO[], feeRate: FeeRate, data?: Buffer | null): number;
    /**
     * Build a Bitcoin transaction.*
     * @param param0
     * @deprecated
     */
    buildTx({ amount, recipient, memo, feeRate, sender, spendPendingUTXO, }: TxParams & {
        feeRate: FeeRate;
        sender: Address;
        spendPendingUTXO?: boolean;
        withTxHex?: boolean;
    }): Promise<{
        psbt: Bitcoin.Psbt;
        utxos: UTXO[];
        inputs: UTXO[];
    }>;
    /**
     * Prepare transfer.
     *
     * @param {TxParams&Address&FeeRate&boolean} params The transfer options.
     * @returns {PreparedTx} The raw unsigned transaction.
     */
    prepareTx({ sender, memo, amount, recipient, spendPendingUTXO, feeRate, }: TxParams & {
        sender: Address;
        feeRate: FeeRate;
        spendPendingUTXO?: boolean;
    }): Promise<PreparedTx>;
}
export { Client };