func (w *Encoder) Uint64(x uint64) {
	w.Sync(SyncUint64)
	w.rawUvarint(x)
}

// Len encodes and writes a non-negative int value into the element bitstream.
func (w *Encoder) Len(x int) { assert(x >= 0); w.Uint64(uint64(x)) }

// Int encodes and writes an int value into the element bitstream.
func (w *Encoder) Int(x int) { w.Int64(int64(x)) }

// Len encodes and writes a uint value into the element bitstream.

	enc := new(Encoder)
	enc.w = []io.Writer{w}
	enc.sent = make(map[reflect.Type]typeId)
	enc.countState = enc.newEncoderState(new(encBuffer))
	return enc
}

// writer returns the innermost writer the encoder is using.
func (enc *Encoder) writer() io.Writer {
	return enc.w[len(enc.w)-1]
}

// pushWriter adds a writer to the encoder.
func (enc *Encoder) pushWriter(w io.Writer) {
	enc.w = append(enc.w, w)
}

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!}
    ```

У цьому прикладі вона конвертує Pydantic model у `dict`, а `datetime` у `str`.

    /**
     * Writes the given byte array to the stream. Encodes the bytes and length information.
     */
    void writeBinary(byte[] bytes, int offset, int count) throws IOException;

    /**
     * Appends an encoded stream to this stream. Encodes the stream as a series of chunks with length information.
     */
    void encodeChunked(EncodeAction<Encoder> writeAction) throws Exception;

    /**

=== "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 diesem Beispiel wird das Pydantic-Modell in ein `dict`, und das `datetime`-Objekt in ein `str` konvertiert.

=== "Python 3.10+"

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

=== "Python 3.6+"

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

В данном примере она преобразует Pydantic модель в `dict`, а `datetime` - в `str`.

    ```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`.