code: @Override
      public java.util.concurrent.Future<BatchGetItemResult> batchGetItemAsync(java.util.Map<String, KeysAndAttributes> requestItems,
              String returnConsumedCapacity, com.amazonaws.handlers.AsyncHandler<BatchGetItemRequest, BatchGetItemResult> asyncHandler) {
  
          return batchGetItemAsync(new BatchGetItemRequest().withRequestItems(requestItems).withReturnConsumedCapacity(returnConsumedCapacity), asyncHandler);
      }
docs: Simplified method form for invoking the BatchGetItem operation with an AsyncHandler.
  
  @see #batchGetItemAsync(BatchGetItemRequest, com.amazonaws.handlers.AsyncHandler)