public T send() throws IOException {
        return web3jService.send(this, responseType);
    }
@Test
    public void testEthSubmitWork() throws Exception {
        web3j.ethSubmitWork(
                        "0x0000000000000001",
                        "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
                        "0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000")
                .send();

        verifyResult(
                "{\"jsonrpc\":\"2.0\",\"method\":\"eth_submitWork\","
                        + "\"params\":[\"0x0000000000000001\","
                        + "\"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef\","
                        + "\"0xD1FE5700000000000000000000000000D1FE5700000000000000000000000000\"],"
                        + "\"id\":1}");
    }