}

    /**
     * Adds an exclude word.
     * @param excludeWord The word to exclude.
     * @return This builder instance.
     */
    public PopularWordsRequestBuilder addExcludeWord(final String excludeWord) {
        request.addExcludeWord(excludeWord);
        return this;
    }

    /**
     * Sets the query frequency threshold.
     * @param queryFreqThreshold The query frequency threshold.

    public void setDetail(final boolean detail) {
        this.detail = detail;
    }

    /**
     * Adds an exclude word.
     * @param excludeWord The word to exclude.
     */
    public void addExcludeWord(final String excludeWord) {
        excludeWords.add(excludeWord);
    }

    /**
     * Sets the query frequency threshold.
     * @param queryFreqThreshold The query frequency threshold.
     */