setTriggerState method
Sets trigger_state of messageId and appends message.updated (04 16.5).
Implementation
void setTriggerState(String messageId, String state, {String? actor}) {
final m = messages[messageId]!;
m
..['trigger_state'] = state
..['trigger_state_at'] = stamp()
..['version'] = (m['version']! as int) + 1;
_messageUpdated(m, actor);
}