* @param size The size.
     */
    public void setSize(final int size) {
        this.size = size;
    }

    /**
     * Sets the seed for random function.
     * @param seed The seed.
     */
    public void setSeed(final String seed) {
        this.seed = seed;
    }

    /**
     * Sets the window size for rescoring.
     * @param windowSize The window size.
     */

        request.addLanguage(lang);
        return this;
    }

    /**
     * Sets the seed for random function.
     * @param seed The seed.
     * @return This builder instance.
     */
    public PopularWordsRequestBuilder setSeed(final String seed) {
        request.setSeed(seed);
        return this;
    }

    /**
     * Sets the window size for rescoring.

 * It also handles the conversion of voiced and semi-voiced sound marks.
 *
 * <p>This class provides the following functionalities:</p>
 * <ul>
 *   <li>Normalization of a string containing Hankaku Kana to Zenkaku Kana.</li>
 *   <li>Conversion of individual Hankaku Kana characters to Zenkaku Kana characters.</li>
 *   <li>Handling of voiced (ﾞ) and semi-voiced (ﾟ) sound marks to produce the correct Zenkaku Kana characters.</li>

 * <li>TOKEN_PARAMTERS - The parameters to include in the token request.</li>
 * <li>LOGIN_METHOD - The HTTP method to use for the login request (GET or POST).</li>
 * <li>LOGIN_URL - The URL to send the login request to.</li>
 * <li>LOGIN_PARAMETERS - The parameters to include in the login request.</li>
 * </ul>
 *
 */
public class FormScheme implements AuthScheme {