public T send() throws IOException {
        return web3jService.send(this, responseType);
    }
@Test
    public void testEthGetProof() throws Exception {
        web3j.ethGetProof(
                        "0x7F0d15C7FAae65896648C8273B6d7E43f58Fa842",
                        Arrays.asList(
                                "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"),
                        "latest")
                .send();
        verifyResult(
                "{\"jsonrpc\":\"2.0\",\"method\":\"eth_getProof\","
                        + "\"params\":[\"0x7F0d15C7FAae65896648C8273B6d7E43f58Fa842\","
                        + "[\"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421\"],"
                        + "\"latest\"],"
                        + "\"id\":0}");
    }