| 573 | } |
| 574 | |
| 575 | virtual Future<Optional<DataValue>> get(StringRef key) { return layers->get(tr, DataKey(prefix).append(key)); } |
| 576 | virtual GenFutureStream<KeyValue> getDescendants(StringRef begin, |
| 577 | StringRef end, |
| 578 | Reference<FlowLock> flowControlLock) { |