docs: private List<Future> sendBatch(Map<Integer, List<Data>> batch, boolean replaceExistingValues) {
          Set<Entry<Integer, List<Data>>> entries = batch.entrySet();
          List<Future> futures = new ArrayList<>(entries.size());
          for (Entry<Integer, List<Data>> e : entries) {
              int partitionId = e.getKey();
              List<Data> keys = e.getValue();
  
              MapOperation op = operationProvider.createLoadAllOperation(mapName, keys, replaceExistingValues);
  
              InternalCompletableFuture<Object> future = opService.invokeOnPartition(SERVICE_NAME, op, partitionId);
              futures.add(future);
          }
          return futures;
      }