9 optional
double timestamp_sec = 1;
12 optional
string module_name = 2;
16 optional uint32 sequence_num = 3;
19 optional uint64 lidar_timestamp = 4;
22 optional uint64 camera_timestamp = 5;
25 optional uint64 radar_timestamp = 6;
28 optional uint32 version = 7 [
default = 1];
32 optional
string frame_id = 9;