import BigNumber from 'bignumber.js';
import * as bitcoin from '@bitgo/utxo-lib';
import { UTXO } from '../utils/utxo';
export declare const BitgoUTXOLib: {
    buildUTXO: (network: typeof bitcoin.networks.bitcoin, privateKey: any, changeAddress: string, toAddress: string, valueIn: BigNumber, utxos: UTXO[], options?: {
        subtractFee?: boolean | undefined;
        fee?: number | undefined;
        signFlag?: number | undefined;
        version?: number | undefined;
        versionGroupID?: number | undefined;
        expiryHeight?: number | undefined;
        lockTime?: number | undefined;
        consensusBranchId?: number | undefined;
    } | undefined) => Promise<{
        toHex: () => string;
    }>;
};