}
        resultData.setEncoding(charsetName);
    }

    /**
     * Normalizes the extracted data, particularly handling title normalization.
     *
     * @param responseData the response data from crawling
     * @param dataMap the data map containing extracted field values
     */

//           names of the operations (usually placeholders) pointed to by
//           `inputs`. These operation names should start with a letter.
//           Normalization will convert all letters to lowercase and
//           non-alphanumeric characters to '_' to make resulting names match
//           the "[a-z][a-z0-9_]*" pattern for operation argument names.