A Stream that emits a status every time the Realtime client sends a heartbeat, receives an acknowledgement, or when a heartbeat goes unanswered.
RealtimeHeartbeatStatus: sent when a heartbeat is pushed, ok or error when the server acknowledges it, and timeout when a prior heartbeat is not answered in time.final subscription = supabase.realtime.onHeartbeat.listen((status) {
print('Heartbeat status: $status');
});