class Contract extends ManagedTransaction {

    public String getContractAddress() {
        return contractAddress;
    }

    protected  Contract(String contractBinary, String contractAddress, Web3j web3j, TransactionManager transactionManager, GasProvider gasProvider, long chainId);
    protected  Contract(String contractBinary, String contractAddress, Web3j web3j, Credentials credentials, GasProvider gasProvider, long chainId);

}