# Encoder – `jsonable_encoder`

# Encoders - `jsonable_encoder`

    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",

const tooBig = (1 << 30) << (^uint(0) >> 62)

// A Decoder manages the receipt of type and data information read from the
// remote side of a connection.  It is safe for concurrent use by multiple
// goroutines.
//
// The Decoder does only basic sanity checking on decoded input sizes,
// and its limits are not configurable. Take caution when decoding gob data
// from untrusted sources.
type Decoder struct {

import java.io.InputStream;

/**
 * Provides a way to decode structured data from a backing byte stream. Implementations may buffer incoming bytes read
 * from the backing stream prior to decoding.
 */
public interface Decoder {
    /**
     * Returns an InputStream which can be used to read raw bytes.
     */
    InputStream getInputStream();

    /**

func extractBodyDecoder(response *http.Response, object runtime.Object, decoder runtime.Decoder) (string, error) {
	defer response.Body.Close()
	body, err := ioutil.ReadAll(response.Body)
	if err != nil {
		return string(body), err
	}
	return string(body), runtime.DecodeInto(decoder, body, object)
}

func extractBodyObject(response *http.Response, decoder runtime.Decoder) (runtime.Object, string, error) {
	defer response.Body.Close()

	return d.nestedErr
}

func (d *testNestedDecodable) DecodeNestedObjects(_ runtime.Decoder) error {
	d.nestedCalled = true
	return d.nestedErr
}

func TestNestedDecode(t *testing.T) {
	n := &testNestedDecodable{nestedErr: fmt.Errorf("unable to decode")}
	decoder := &mockSerializer{obj: n}
	codec := NewCodec(nil, decoder, nil, nil, nil, nil, nil, nil, "TestNestedDecode")

// read data from r beyond the JSON values requested.
func NewDecoder(r io.Reader) *Decoder {
	return &Decoder{r: r}
}

// UseNumber causes the Decoder to unmarshal a number into an interface{} as a
// [Number] instead of as a float64.
func (dec *Decoder) UseNumber() { dec.d.useNumber = true }

// DisallowUnknownFields causes the Decoder to return an error when the destination

	if filter.isEmpty() {
		return nil
	}
	type filterRuleWrapper FilterRule
	return e.EncodeElement(filterRuleWrapper(filter), start)
}

// UnmarshalXML - decodes XML data.
func (filter *FilterRule) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	// Make subtype to avoid recursive UnmarshalXML().
	type filterRule FilterRule
	rule := filterRule{}
	if err := d.DecodeElement(&rule, &start); err != nil {

	unmarshaled bool
}

// IsEmpty - returns whether reader args is empty or not.
func (args *ReaderArgs) IsEmpty() bool {
	return !args.unmarshaled
}

// UnmarshalXML - decodes XML data.
func (args *ReaderArgs) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	// Make subtype to avoid recursive UnmarshalXML().
	type subReaderArgs ReaderArgs
	parsedArgs := subReaderArgs{}