import BigNumber from 'bignumber.js';
export default class ByteBuffer {
    private needle;
    private readonly transactionBytes;
    private readonly hexTransactionBytes;
    constructor(hexString: string);
    position(setValue?: number): number | undefined;
    length(): number;
    readByte(): number;
    readShort(): number;
    readInt(): number;
    readLong(): BigNumber;
    readHexString(nBytes: number): string;
    readString(nBytes: number): string;
}