{"hello", "hello"},
		{"hello\n", "hello\\n"},
		{"hello\\", "hello\\\\"},
		{"hello\nthere", "hello\\nthere"},
		{"\\\n", "\\\\\\n"},
	}
	for _, test := range tests {
		if got := encodeArg(test.arg); got != test.want {
			t.Errorf("encodeArg(%q) = %q, want %q", test.arg, got, test.want)
		}
	}
}

func TestEncodeDecode(t *testing.T) {
	t.Parallel()
	tests := []string{
		"",
		"hello",
		"hello\\there",

	isBuilder := os.Getenv("GO_BUILDER_NAME") != ""
	if isBuilder && rand.Intn(10) == 0 {
		return true
	}

	return false
}

// encodeArg encodes an argument for response file writing.
func encodeArg(arg string) string {
	// If there aren't any characters we need to reencode, fastpath out.
	if !strings.ContainsAny(arg, "\\\n") {
		return arg
	}
	var b strings.Builder

    if isinstance(obj, BaseModel):
        # TODO: remove when deprecating Pydantic v1
        encoders: Dict[Any, Any] = {}
        if not PYDANTIC_V2:
            encoders = getattr(obj.__config__, "json_encoders", {})  # type: ignore[attr-defined]
            if custom_encoder:
                encoders.update(custom_encoder)
        obj_dict = _model_dump(
            obj,
            mode="json",

# Encoder – `jsonable_encoder`

func (pw *PkgEncoder) NewEncoderRaw(k RelocKind) Encoder {
	idx := Index(len(pw.elems[k]))
	pw.elems[k] = append(pw.elems[k], "") // placeholder

	return Encoder{
		p:   pw,
		k:   k,
		Idx: idx,
	}
}

// An Encoder provides methods for encoding an individual element's
// bitstream data.
type Encoder struct {
	p *PkgEncoder

	Relocs   []RelocEnt

// NewEncoder returns a new encoder that will transmit on the [io.Writer].
func NewEncoder(w io.Writer) *Encoder {
	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]
}

=== "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`.

# Encoders - `jsonable_encoder`

=== "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`.