code: @Override
      public java.util.concurrent.Future<BatchWriteItemResult> batchWriteItemAsync(java.util.Map<String, java.util.List<WriteRequest>> requestItems,
              com.amazonaws.handlers.AsyncHandler<BatchWriteItemRequest, BatchWriteItemResult> asyncHandler) {
  
          return batchWriteItemAsync(new BatchWriteItemRequest().withRequestItems(requestItems), asyncHandler);
      }
docs: Simplified method form for invoking the BatchWriteItem operation with an AsyncHandler.
  
  @see #batchWriteItemAsync(BatchWriteItemRequest, com.amazonaws.handlers.AsyncHandler)