同様に、このデータベースはPydanticモデル（属性を持つオブジェクト）を受け取らず、`dict`だけを受け取ります。

そのために`jsonable_encoder`を使用することができます。

Pydanticモデルのようなオブジェクトを受け取り、JSON互換版を返します:

```Python hl_lines="5 22"
{!../../../docs_src/encoder/tutorial001.py!}
```

この例では、Pydanticモデルを`dict`に、`datetime`を`str`に変換します。

=== "Python 3.10+"

    ```Python hl_lines="4  21"
    {!> ../../../docs_src/encoder/tutorial001_py310.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="5  22"
    {!> ../../../docs_src/encoder/tutorial001.py!}
    ```

In this example, it would convert the Pydantic model to a `dict`, and the `datetime` to a `str`.

⚫️ 📨 🎚, 💖 Pydantic 🏷, & 📨 🎻 🔗 ⏬:

=== "🐍 3️⃣.6️⃣ & 🔛"

    ```Python hl_lines="5  22"
    {!> ../../../docs_src/encoder/tutorial001.py!}
    ```

=== "🐍 3️⃣.1️⃣0️⃣ & 🔛"

    ```Python hl_lines="4  21"
    {!> ../../../docs_src/encoder/tutorial001_py310.py!}
    ```

👉 🖼, ⚫️ 🔜 🗜 Pydantic 🏷 `dict`, & `datetime` `str`.

=== "Python 3.10+"

    ```Python hl_lines="4  21"
    {!> ../../../docs_src/encoder/tutorial001_py310.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="5  22"
    {!> ../../../docs_src/encoder/tutorial001.py!}
    ```

Neste exemplo, ele converteria o modelo Pydantic em um `dict`, e o `datetime` em um `str`.

对此你可以使用`jsonable_encoder`。

它接收一个对象，比如Pydantic模型，并会返回一个JSON兼容的版本：

=== "Python 3.10+"

    ```Python hl_lines="4  21"
    {!> ../../../docs_src/encoder/tutorial001_py310.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="5  22"
    {!> ../../../docs_src/encoder/tutorial001.py!}
    ```

在这个例子中，它将Pydantic模型转换为`dict`，并将`datetime`转换为`str`。

}

func (d *decoder) Close() error {
	return d.reader.Close()
}

type encoder struct {
	writer  io.Writer
	encoder runtime.Encoder
	buf     *bytes.Buffer
}

// NewEncoder returns a new streaming encoder.
func NewEncoder(w io.Writer, e runtime.Encoder) Encoder {
	return &encoder{
		writer:  w,
		encoder: e,
		buf:     &bytes.Buffer{},
	}
}

	creater := &mockCreater{obj: &runtimetesting.MockCacheableObject{}}
	typer := &mockTyper{gvk: &gvk}

	encoders := []runtime.Encoder{
		NewSerializer(creater, typer),
		NewRawSerializer(creater, typer),
	}

	for _, encoder := range encoders {
		runtimetesting.CacheableObjectTest(t, encoder)
	}
}

type mockCreater struct {
	apiVersion string
	kind       string
	err        error

// See Issue 16204.
func TestCatchInvalidNilValue(t *testing.T) {
	encodeErr, panicErr := encodeAndRecover(nil)
	if panicErr != nil {
		t.Fatalf("panicErr=%v, should not panic encoding untyped nil", panicErr)
	}
	if encodeErr == nil {
		t.Errorf("got err=nil, want non-nil error when encoding untyped nil value")
	} else if !strings.Contains(encodeErr.Error(), "nil value") {

	}

	s := serializer.Serializer

	// Give callers the opportunity to wrap encoders and decoders.  For decoders, each returned decoder will
	// be passed to the recognizer so that multiple decoders are available.
	var encoder runtime.Encoder = s
	if opts.EncoderDecoratorFn != nil {
		encoder = opts.EncoderDecoratorFn(encoder)
	}
	decoders := []runtime.Decoder{
		// selected decoder as the primary
		s,

	SupportedMediaTypes() []SerializerInfo

	// EncoderForVersion returns an encoder that ensures objects being written to the provided
	// serializer are in the provided group version.
	EncoderForVersion(serializer Encoder, gv GroupVersioner) Encoder
	// DecoderToVersion returns a decoder that ensures objects being read by the provided