from field: plugnmeet.SessionDataType data_type = 1;
Optional
request: unset => all, set => one; response: always set
from field: optional string key = 2;
response only: true on the final streamed entry
from field: bool last = 3;
save only: empty/absent => save to own room; set => seed into target breakout child room
from field: optional string target_room_id = 4;
from message plugnmeet.SessionDataHeader
Generated
from field: plugnmeet.SessionDataType data_type = 1;