public T send() throws IOException {
        return web3jService.send(this, responseType);
    }
@Test
    public void testEthGetLogsWithBlockHash() throws Exception {
        web3j.ethGetLogs(
                        new EthFilter(
                                "0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331",
                                ""))
                .send();

        verifyResult(
                "{\"jsonrpc\":\"2.0\",\"method\":\"eth_getLogs\","
                        + "\"params\":[{\"topics\":[],"
                        + "\"blockHash\":\"0xe670ec64341771606e55d6b4ca35a1a6b75ee3d5145a99d05921026d1527331\","
                        + "\"address\":[\"\"]}],\"id\":<generatedValue>}");
    }