assertTrue(AnalyzerSettings.isSupportedLanguage("en"));
        assertTrue(AnalyzerSettings.isSupportedLanguage("ja"));
        assertTrue(AnalyzerSettings.isSupportedLanguage("zh-cn"));
        assertTrue(AnalyzerSettings.isSupportedLanguage("zh-tw"));

        // Test unsupported languages
        assertFalse(AnalyzerSettings.isSupportedLanguage("xyz"));
        assertFalse(AnalyzerSettings.isSupportedLanguage(""));

### Target language

Translate to Simplified Chinese (简体中文).

Language code: zh.

### Grammar and tone

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

### Headings

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

    }

    @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"}}

### 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。

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。

We welcome pull requests for your language.

### Translations

- [日本語 (Japanese)](docs/ja/README.md)
- [简体中文 (Simplified Chinese)](docs/zh-CN/README.md)
- [Español (Spanish)](docs/es/README.md)
- [Português (Brazilian Portuguese)](docs/pt-BR/README.md)
- [Français (French)](docs/fr/README.md)
- [Deutsch (German)](docs/de/README.md)

私たちは、あなたの言語でのプルリクエストを歓迎します。

### 翻訳

- [English](../../README.md)
- [简体中文 (Simplified Chinese)](../zh-CN/README.md)
- [Español (Spanish)](../es/README.md)
- [Português (Brazilian Portuguese)](../pt-BR/README.md)
- [Français (French)](../fr/README.md)
- [Deutsch (German)](../de/README.md)
- [한국어 (Korean)](../ko/README.md)

귀하의 언어로 된 풀 리퀘스트를 환영합니다.

### 번역

- [English](../../README.md)
- [日本語 (Japanese)](../ja/README.md)
- [简体中文 (Simplified Chinese)](../zh-CN/README.md)
- [Español (Spanish)](../es/README.md)
- [Português (Brazilian Portuguese)](../pt-BR/README.md)
- [Français (French)](../fr/README.md)
- [Deutsch (German)](../de/README.md)

## 제공된 기술