code: public static HttpURLConnection batch(final URI rootUri, final TableRequestOptions tableOptions,
              final UriQueryBuilder queryBuilder, final OperationContext opContext, final String batchID)
              throws IOException, URISyntaxException, StorageException {
          final URI queryUri = PathUtility.appendPathToSingleUri(rootUri, "$batch");
  
          final HttpURLConnection retConnection = BaseRequest.createURLConnection(queryUri, tableOptions, queryBuilder,
                  opContext);
  
          setAcceptHeaderForHttpWebRequest(retConnection, tableOptions.getTablePayloadFormat());
          retConnection.setRequestProperty(Constants.HeaderConstants.CONTENT_TYPE,
                  String.format(TableConstants.HeaderConstants.MULTIPART_MIXED_FORMAT, batchID));
  
          retConnection.setRequestProperty(TableConstants.HeaderConstants.MAX_DATA_SERVICE_VERSION,
                  TableConstants.HeaderConstants.MAX_DATA_SERVICE_VERSION_VALUE);
  
          retConnection.setRequestMethod("POST");
          retConnection.setDoOutput(true);
          return retConnection;
      }
docs: Reserved for internal use. Constructs an <code>HttpURLConnection</code> to perform a table batch operation.
  
  @param rootUri
  A <code>java.net.URI</code> containing an absolute URI to the resource.
  @param tableOptions
  A {@link TableRequestOptions} object that specifies execution options such as retry policy and timeout
  settings for the operation. This parameter is unused.
  @param queryBuilder
  The {@link UriQueryBuilder} for the operation.
  @param opContext
  An {@link OperationContext} object for tracking the current operation. Specify <code>null</code> to
  safely ignore operation context.
  @param batchID
  The <code>String</code> containing the batch identifier.
  @return
  An <code>HttpURLConnection</code> to use to perform the operation.
  
  @throws IOException
  if there is an error opening the connection.
  @throws URISyntaxException
  if the resource URI is invalid.
  @throws StorageException
  if a storage service error occurred during the operation.