class ProposalContract extends BaseContract {

    public RemoteCall<PlatonSendTransaction> submitProposalReturnTransaction(Proposal proposal) {
        Function function = createSubmitProposalFunction(proposal);
        return executeRemoteCallTransactionStep1(function);
    }

    private  ProposalContract(String contractAddress, Web3j web3j);
    private  ProposalContract(String contractAddress, long chainId, Web3j web3j, Credentials credentials);
    private  ProposalContract(String contractAddress, Web3j web3j, TransactionManager transactionManager);

}