## Bodies of arbitrary `dict`s { #bodies-of-arbitrary-dicts }

You can also declare a body as a `dict` with keys of some type and values of some other type.

This way, you don't have to know beforehand what the valid field/attribute names are (as would be the case with Pydantic models).

///

### 理解這段程式碼 { #understand-that-code }

重點就是在 `Annotated` 中使用「`AfterValidator` 搭配函式」。如果你願意，可以略過這一節。🤸

---

但如果你對這個範例感到好奇且仍有興致，以下是一些額外細節。

#### 使用 `value.startswith()` 的字串 { #string-with-value-startswith }

你注意到了嗎？字串的 `value.startswith()` 可以接收一個 tuple，並逐一檢查 tuple 中的每個值：

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[16:19] hl[17] *}

#### 隨機項目 { #a-random-item }

      for (i in 0 until size) {
        if (!"Vary".equals(name(i), ignoreCase = true)) {
          continue
        }

        val value = value(i)
        if (result == null) {
          result = TreeSet(String.CASE_INSENSITIVE_ORDER)
        }
        for (varyField in value.split(',')) {
          result.add(varyField.trim())
        }
      }
      return result ?: emptySet()
    }

    /**

 *       com.google.common.primitives.Ints#stringConverter Ints.stringConverter} or the {@linkplain
 *       #reverse reverse} views of these.
 *   <li>Convert between specific preset values using {@link
 *       com.google.common.collect.Maps#asConverter Maps.asConverter}. For example, use this to
 *       create a "fake" converter for a unit test. It is unnecessary (and confusing) to <i>mock</i>

    /**
     * Helper for setting a field via reflection.
     */
    private static void setField(Object target, String name, Object value) {
        try {
            Field f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);
            f.set(target, value);
        } catch (Exception e) {
            fail("Failed to set field '" + name + "'", e);
        }
    }

    /**

    EnumMapAccumulator(BinaryOperator<V> mergeFunction) {
      this.mergeFunction = mergeFunction;
    }

    void put(K key, V value) {
      if (map == null) {
        map = new EnumMap<>(singletonMap(key, value));
      } else {
        map.merge(key, value, mergeFunction);
      }
    }

    EnumMapAccumulator<K, V> combine(EnumMapAccumulator<K, V> other) {
      if (this.map == null) {

    EnumMapAccumulator(BinaryOperator<V> mergeFunction) {
      this.mergeFunction = mergeFunction;
    }

    void put(K key, V value) {
      if (map == null) {
        map = new EnumMap<>(singletonMap(key, value));
      } else {
        map.merge(key, value, mergeFunction);
      }
    }

    EnumMapAccumulator<K, V> combine(EnumMapAccumulator<K, V> other) {
      if (this.map == null) {

	for rows.Next() {
		if err := DB.ScanRows(rows, &reusedVar); err != nil {
			t.Errorf("should get no error, but got %v", err)
		}
	}

	if !reflect.DeepEqual(reusedVar, Result{}) {
		t.Errorf("Should find zero values in struct fields, got %+v\n", reusedVar)
	}
}

func TestScanToEmbedded(t *testing.T) {
	person1 := Person{Name: "person 1"}
	person2 := Person{Name: "person 2"}
	DB.Save(&person1).Save(&person2)

		query := url.Values{}
		for key, value := range testCase.queryParams {
			query.Set(key, value)
		}

		// Create a request to use.
		req, e := http.NewRequest(http.MethodGet, "http://host/a/b?"+query.Encode(), nil)
		if e != nil {
			t.Errorf("(%d) failed to create http.Request, got %v", i, e)
		}

		// Do the same for the headers.
		for key, value := range testCase.headers {

        assertTrue(queryCommand.lowercaseWildcard);
    }

    @Test
    public void test_convertWildcardQuery_withBoost() throws Exception {
        // Test with different boost values
        QueryContext queryContext = new QueryContext("test*", false);
        WildcardQuery wildcardQuery = new WildcardQuery(new Term("title", "test*"));

        // Test with boost = 0.5