onGroupEvent

suspend fun BehaviourContext.onGroupEvent(includeFilterByChatInBehaviourSubContext: Boolean = true, additionalFilter: suspend (ChatEventMessage<GroupEvent>) -> Boolean? = null, markerFactory: MarkerFactory<in ChatEventMessage<GroupEvent>, Any> = ByChatMessageMarkerFactory, scenarioReceiver: BehaviourContextAndTypeReceiver<Unit, ChatEventMessage<GroupEvent>>): Job