* Sets the prefix match weight.
     * @param prefixMatchWeight The prefix match weight.
     * @return This builder instance.
     */
    public SuggestRequestBuilder setPrefixMatchWeight(final float prefixMatchWeight) {
        request.setPrefixMatchWeight(prefixMatchWeight);
        return this;
    }

    /**
     * Sets whether to match the first word.

 * suggestRequest.addLang("en");
 * suggestRequest.setSuggestDetail(true);
 * suggestRequest.setReadingConverter(new MyReadingConverter());
 * suggestRequest.setNormalizer(new MyNormalizer());
 * suggestRequest.setPrefixMatchWeight(1.5f);
 * suggestRequest.setMatchWordFirst(false);
 * suggestRequest.setSkipDuplicateWords(false);
 * </pre>
 *