QueueBufferedPersistentMapConfig

fun <BufferedItems, MapKeyType, MapValueType> QueueBufferedPersistentMapConfig(    queue: PersistentQueue<BufferedItems>,     map: PersistentMap<MapKeyType, MapValueType>,     groupByBlock: (BufferedItems) -> MapKeyType,     defaultValue: (MapKeyType) -> MapValueType,     mergeBlock: (MapValueType, BufferedItems) -> MapValueType,     delay: Long,     buffer: Boolean = false)