onCommand

suspend fun <BC : BehaviourContext> BC.onCommand(commandRegex: Regex, 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
suspend fun <BC : BehaviourContext> BC.onCommand(command: String, 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