onMentionWithTextContent
suspend fun <BC : BehaviourContext> BC.onMentionWithTextContent(username: Username, initialFilter: CommonMessageFilter<TextContent>? = null, subcontextUpdatesFilter: CustomBehaviourContextAndTwoTypesReceiver<BC, Boolean, CommonMessage<TextContent>, Update>? = null, markerFactory: MarkerFactory<in CommonMessage<TextContent>, Any> = AnyMarkerFactory(), scenarioReceiver: CustomBehaviourContextAndTypeReceiver<BC, Unit, CommonMessage<TextContent>>): Job
suspend fun <BC : BehaviourContext> BC.onMentionWithTextContent(user: User, initialFilter: CommonMessageFilter<TextContent>? = null, subcontextUpdatesFilter: CustomBehaviourContextAndTwoTypesReceiver<BC, Boolean, CommonMessage<TextContent>, Update>? = null, markerFactory: MarkerFactory<in CommonMessage<TextContent>, Any> = AnyMarkerFactory(), scenarioReceiver: CustomBehaviourContextAndTypeReceiver<BC, Unit, CommonMessage<TextContent>>): Job