class Transaction {

    public void sign(byte[] privKeyBytes) throws MissingPrivateKeyException {
        sign(ECKey.fromPrivate(privKeyBytes));
    }

    public  Transaction(byte[] rawData);
    public  Transaction(byte[] nonce, byte[] gasPrice, byte[] gasLimit, byte[] receiveAddress, byte[] value, byte[] data,
                       Integer chainId);
    public  Transaction(byte[] nonce, byte[] gasPrice, byte[] gasLimit, byte[] receiveAddress, byte[] value, byte[] data);
    public  Transaction(byte[] nonce, byte[] gasPrice, byte[] gasLimit, byte[] receiveAddress, byte[] value, byte[] data,
                       byte[] r, byte[] s, byte v, Integer chainId);
    public  Transaction(byte[] nonce, byte[] gasPrice, byte[] gasLimit, byte[] receiveAddress, byte[] value, byte[] data,
                       byte[] r, byte[] s, byte v);

}