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