For software that interfaces with Bitcoin Core via RPC, it can be useful to know whether the fRelayTxes flag is set. It could be added to `getnetworkinfo`.

{
        try
        {
            BeginMessage(pszCommand);
            ssSend << a1 << a2;
            EndMessage(pszCommand);
        }
        catch (...)
        {
            AbortMessage();
            throw;
        }
    }
    template<typename T1, typename T2, typename T3>
    void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3)
    {
        try
        {
            BeginMessage(pszCommand);
            ssSend << a1 << a2 << a3;
            EndMessage(pszCommand);
        }
        catch (...)
        {
            AbortMessage();
            throw;
        }
    }
    template<typename T1, typename T2, typename T3, typename T4>
    void PushMessage(const char* pszCommand, const T1& a1, const T2& a2, const T3& a3, const T4& a4)