public:
//message_definition_t(const message_definition_t& b);
message_definition_t(const std::string bus);
message_definition_t(const std::string bus, uint32_t id, frequency_clock_t frequency_clock, bool force_send_changed);
public:
//message_definition_t(const message_definition_t& b);
message_definition_t(const std::string bus);
message_definition_t(const std::string bus, uint32_t id, frequency_clock_t frequency_clock, bool force_send_changed);