List<String> readings = Arrays.asList("reading1", "reading2");
        List<String> fields = Arrays.asList("field1", "field2", "field3");
        List<String> tags = Arrays.asList("tag1", "tag2");
        List<String> roles = Arrays.asList("role1", "role2", "role3");

        elevateWord = new ElevateWord(word, boost, readings, fields, tags, roles);
        SuggestItem suggestItem = elevateWord.toSuggestItem();

    @Test
    public void test_annotationHashCodeAndEquals() throws Exception {
        final Field field1 = UriTypeTest.class.getDeclaredField("testFieldWeb");
        final UriType annotation1 = field1.getAnnotation(UriType.class);

        final Field field2 = UriTypeTest.class.getDeclaredField("testFieldFile");
        final UriType annotation2 = field2.getAnnotation(UriType.class);

        // Test adding single condition
        generator.addCondition("field1", "value1");

        // Test adding multiple conditions for same field
        generator.addCondition("field1", "value2");

        // Test adding conditions for different fields
        generator.addCondition("field2", "pattern.*");

        // Verify conditions can be added without errors
        assertNotNull(generator);

        QueryBuilder fieldsFilter = request.buildFilterQuery("fields", Arrays.asList("field1"));

        assertTrue("Tags filter should contain 'tags'", tagsFilter.toString().contains("tags"));
        assertTrue("Roles filter should contain 'roles'", rolesFilter.toString().contains("roles"));
        assertTrue("Fields filter should contain 'fields'", fieldsFilter.toString().contains("fields"));
    }

        // Test executing BoostQuery with a BooleanQuery inside
        BooleanQuery.Builder boolBuilder = new BooleanQuery.Builder();
        boolBuilder.add(new TermQuery(new Term("field1", "value1")), BooleanClause.Occur.MUST);
        boolBuilder.add(new TermQuery(new Term("field2", "value2")), BooleanClause.Occur.SHOULD);
        BooleanQuery boolQuery = boolBuilder.build();
        BoostQuery boostQuery = new BoostQuery(boolQuery, 2.0f);

        String[] fields = { "field" };

        SuggestItem item = new SuggestItem(text, readings, fields, 1L, 1L, 1.0f, new String[] { "tag" }, new String[] { "role" },
                new String[] { "en" }, SuggestItem.Kind.QUERY);

        Map<String, Object> source = SuggestItemSerializer.toSource(item);

        // Verify all expected fields are present

        item.setReadings(newReadings);
        assertArrayEquals(newReadings, item.getReadings());

        // Test fields
        String[] fields = { "field1", "field2" };
        item.setFields(fields);
        assertArrayEquals(fields, item.getFields());

        // Test tags
        String[] tags = { "tag1", "tag2" };
        item.setTags(tags);

// JSON utilities with proper escaping
String escaped = JsonUtil.escape("Hello \"World\" with special chars");
String unescaped = JsonUtil.unescape(escaped);

// Text tokenization
Tokenizer tokenizer = new Tokenizer("field1,field2,field3", ",");
while (tokenizer.hasMoreTokens()) {
    String token = tokenizer.nextToken();
    // Process each token
}

// Decimal formatting

    @Test
    public void testGetKeywordsWithEmptyField() {
        // Test with empty field array
        String query = "test query";
        String[] fields = {};
        List<String> keywords = SuggestUtil.getKeywords(query, fields);
        assertNotNull(keywords);
        assertEquals(0, keywords.size()); // No keywords because no fields match
    }

    @Test
    public void testGetKeywordsWithComplexQuery() {

# Body - 欄位 { #body-fields }

就像你可以在「路徑操作函式 (path operation function)」的參數中用 `Query`、`Path` 和 `Body` 宣告額外的驗證與中繼資料一樣，你也可以在 Pydantic 模型中使用 Pydantic 的 `Field` 來宣告驗證與中繼資料。

## 匯入 `Field` { #import-field }

首先，你需要匯入它：

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}


/// warning

請注意，`Field` 是直接從 `pydantic` 匯入的，不像其他（如 `Query`、`Path`、`Body` 等）是從 `fastapi` 匯入。

///

## 宣告模型屬性 { #declare-model-attributes }