import { FeeRate, TxHash } from '@xchainjs/xchain-client';
import { Address } from '@xchainjs/xchain-util';
import { TxParams, UTXO, UtxoSelectionPreferences } from '@xchainjs/xchain-utxo';
import { Client } from './client';
/**
 * Custom Bitcoin client extended to support keystore functionality
 */
declare class ClientKeystore extends Client {
    /**
     * @deprecated This function eventually will be removed. Use getAddressAsync instead.
     * Get the address associated with the given index.
     * @param {number} index The index of the address.
     * @returns {Address} The Bitcoin address.
     * @throws {"index must be greater than zero"} Thrown if the index is less than zero.
     * @throws {"Phrase must be provided"} Thrown if the phrase has not been set before.
     * @throws {"Address not defined"} Thrown if failed to create the address from the phrase.
     */
    getAddress(index?: number): Address;
    /**
     * Get the current address asynchronously.
     * @param {number} index The index of the address.
     * @returns {Promise<Address>} A promise that resolves to the BitcoinCash address.
     * @throws {"Phrase must be provided"} Thrown if the phrase has not been set before.
     */
    getAddressAsync(index?: number): Promise<string>;
    /**
     * Private function to get BCH keys.
     * Generates a key pair from the provided phrase and derivation path.
     * @param {string} phrase - The phrase used for generating the private key.
     * @param {string} derivationPath - The BIP44 derivation path.
     * @returns {PrivateKey} The key pair generated from the phrase and derivation path.
     *
     * @throws {"Invalid phrase"} Thrown if an invalid phrase is provided.
     * */
    private getBCHKeys;
    /**
     * Transfer BCH.
     * @param {TxParams & { feeRate?: FeeRate; utxoSelectionPreferences?: UtxoSelectionPreferences }} params - The transfer options.
     * @returns {Promise<TxHash>} A promise that resolves with the transaction hash.
     */
    transfer(params: TxParams & {
        feeRate?: FeeRate;
        utxoSelectionPreferences?: UtxoSelectionPreferences;
        selectedUtxos?: UTXO[];
    }): Promise<TxHash>;
    /**
     * Transfer the maximum amount of BCH (sweep).
     *
     * Calculates the maximum sendable amount after fees, signs, and broadcasts the transaction.
     * @param {Object} params The transfer parameters.
     * @param {string} params.recipient The recipient address.
     * @param {string} [params.memo] Optional memo for the transaction.
     * @param {FeeRate} [params.feeRate] Optional fee rate. Defaults to 'fast' rate.
     * @param {number} [params.walletIndex] Optional wallet index. Defaults to 0.
     * @param {UtxoSelectionPreferences} [params.utxoSelectionPreferences] Optional UTXO selection preferences.
     * @returns {Promise<{ hash: TxHash; maxAmount: number; fee: number }>} The transaction hash, amount sent, and fee.
     */
    transferMax(params: {
        recipient: Address;
        memo?: string;
        feeRate?: FeeRate;
        walletIndex?: number;
        utxoSelectionPreferences?: UtxoSelectionPreferences;
        selectedUtxos?: UTXO[];
    }): Promise<{
        hash: TxHash;
        maxAmount: number;
        fee: number;
    }>;
}
export { ClientKeystore };