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