https://travis-ci.org/github/bitcoin/bitcoin/jobs/680452476#L6107
SignTransaction(mtx, &keystore, coins, request.params[3], result);
    return result;
},
    };
}
static RPCHelpMan sendrawtransaction()
{
    return RPCHelpMan{"sendrawtransaction",
                "\nSubmit a raw transaction (serialized, hex-encoded) to local node and network.\n"
                "\nNote that the transaction will be sent unconditionally to all peers, so using this\n"
                "for manual rebroadcast may degrade privacy by leaking the transaction's origin, as\n"
                "nodes will normally not rebroadcast non-wallet transactions already in their mempool.\n"
                "\nAlso see createrawtransaction and signrawtransactionwithkey calls.\n",
                {
                    {"hexstring", RPCArg::Type::STR_HEX, RPCArg::Optional::NO, "The hex string of the raw transaction"},
                    {"maxfeerate", RPCArg::Type::AMOUNT,  FormatMoney(DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK()),
                        "Reject transactions whose fee rate is higher than the specified value, expressed in " + CURRENCY_UNIT +
                            "/kB.\nSet to 0 to accept any fee rate.\n"},
                },
                RPCResult{
                    RPCResult::Type::STR_HEX, "", "The transaction hash in hex"
                },
                RPCExamples{
            "\nCreate a transaction\n"
            + HelpExampleCli("createrawtransaction", "\"[{\\\"txid\\\" : \\\"mytxid\\\",\\\"vout\\\":0}]\" \"{\\\"myaddress\\\":0.01}\"") +
            "Sign the transaction, and get back the hex\n"
            + HelpExampleCli("signrawtransactionwithwallet", "\"myhex\"") +
            "\nSend the transaction (signed hex)\n"
            + HelpExampleCli("sendrawtransaction", "\"signedhex\"") +
            "\nAs a JSON-RPC call\n"