}

    @Test
    public void testMerge_languages() {
        SuggestItem item1 = createItemWithLanguages("text", "en", "ja");
        SuggestItem item2 = createItemWithLanguages("text", "ja", "zh");

        SuggestItem merged = SuggestItemMerger.merge(item1, item2);

        String[] languages = merged.getLanguages();
        Set<String> langSet = new HashSet<>(Arrays.asList(languages));

	user := *GetUser("update-many2many", Config{})

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	user.Languages = []Language{{Code: "zh-CN", Name: "Chinese"}, {Code: "en", Name: "English"}}
	for _, lang := range user.Languages {
		DB.Create(&lang)
	}
	user.Friends = []*User{{Name: "friend-1"}, {Name: "friend-2"}}

        assertEquals("ja", systemHelper.normalizeLang(value));

        value = "zh";
        assertEquals("zh", systemHelper.normalizeLang(value));

        value = "zh-cn";
        assertEquals("zh_CN", systemHelper.normalizeLang(value));

        value = "zh_CN";
        assertEquals("zh_CN", systemHelper.normalizeLang(value));

        value = "zh-tw";
        assertEquals("zh_TW", systemHelper.normalizeLang(value));

### Target language

Translate to Traditional Chinese (繁體中文).

Language code: zh-hant.

### Grammar and tone

- Use clear, concise technical Traditional Chinese consistent with existing docs.
- Address the reader naturally (commonly using “你/你的”).

### Headings

- Follow existing Traditional Chinese heading style (short and descriptive).
- Do not add trailing punctuation to headings.

### Quotes and punctuation

GitHub 仓库：[Full Stack FastAPI Template](https://github.com/tiangolo/full-stack-fastapi-template)

## FastAPI全栈模板 - 技术栈和特性 { #full-stack-fastapi-template-technology-stack-and-features }

- ⚡ [**FastAPI**](https://fastapi.tiangolo.com/zh) 用于 Python 后端 API。
  - 🧰 [SQLModel](https://sqlmodel.tiangolo.com) 用于 Python 与 SQL 数据库的交互（ORM）。
  - 🔍 [Pydantic](https://docs.pydantic.dev)，FastAPI 使用，用于数据验证与配置管理。
  - 💾 [PostgreSQL](https://www.postgresql.org) 作为 SQL 数据库。

pt_BR=pt-br\n\
ro=ro\n\
ru=ru\n\
si=si\n\
sq=sq\n\
sv=sv\n\
ta=ta\n\
te=te\n\
th=th\n\
tl=tl\n\
tr=tr\n\
uk=uk\n\
ur=ur\n\
vi=vi\n\
zh-cn=zh-cn\n\
zh_CN=zh-cn\n\
zh-tw=zh-tw\n\
zh_TW=zh-tw\n\
zh=zh\n\

# boost

# Boost value for title field in queries.
query.boost.title=0.5
# Boost value for title field with language in queries.
query.boost.title.lang=1.0

GitHub 儲存庫：[全端 FastAPI 範本](https://github.com/tiangolo/full-stack-fastapi-template)

## 全端 FastAPI 範本 - 技術堆疊與功能 { #full-stack-fastapi-template-technology-stack-and-features }

- ⚡ [**FastAPI**](https://fastapi.tiangolo.com/zh-hant) 作為 Python 後端 API。
  - 🧰 [SQLModel](https://sqlmodel.tiangolo.com) 作為 Python 與 SQL 資料庫互動（ORM）。
  - 🔍 [Pydantic](https://docs.pydantic.dev)（由 FastAPI 使用）用於資料驗證與設定管理。
  - 💾 [PostgreSQL](https://www.postgresql.org) 作為 SQL 資料庫。

            "fr", "gu", "he", "hi", "hr", "hu", "id", "it", "ja", "ko", "lt", "lv", "mk", "ml", "nl", "no", "pa", "pl", "pt", "ro", "ru",
            "si", "sq", "sv", "ta", "te", "th", "tl", "tr", "uk", "ur", "vi", "zh-cn", "zh-tw" };

    /**
     * Constructor for AnalyzerSettings.
     * @param client The OpenSearch client.
     * @param settings The SuggestSettings instance.

          "rules_path": "${fess.dictionary.path}ru/stemmer_override.txt"
        },
        "simplified_chinese_stop": {
          "type":       "stop",
          "stopwords_path": "${fess.dictionary.path}zh-cn/stopwords.txt"
        },
        "sorani_stop": {
          "type":       "stop",
          "stopwords_path": "${fess.dictionary.path}ckb-iq/stopwords.txt"
        },
        "sorani_keywords": {

			<arg>"fess"</arg>
			<arg>"vi/stopwords.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"zh-cn/stopwords.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"zh-tw/stopwords.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"ar/stemmer_override.txt"</arg>