onUnhandledCommand

suspend fun <BC : BehaviourContext> BC.onUnhandledCommand(requireOnlyCommandInMessage: Boolean = true, initialFilter: CommonMessageFilter<TextContent>? = CommonMessageFilterExcludeMediaGroups, subcontextUpdatesFilter: CustomBehaviourContextAndTwoTypesReceiver<BC, Boolean, CommonMessage<TextContent>, Update> = MessageFilterByChat, markerFactory: MarkerFactory<in CommonMessage<TextContent>, Any> = ByChatMessageMarkerFactory, scenarioReceiver: CustomBehaviourContextAndTypeReceiver<BC, Unit, CommonMessage<TextContent>>): Job