docs: public <CT> CT callBatchTasks(ConnectionSource connectionSource, Callable<CT> callable) throws SQLException {
  		if (connectionSource.isSingleConnection(tableInfo.getTableName())) {
  			synchronized (this) {
  				return doCallBatchTasks(connectionSource, callable);
  			}
  		} else {
  			return doCallBatchTasks(connectionSource, callable);
  		}
  	}