import java.util.Objects;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * CompactHashMap is an implementation of a Map. All optional operations (put and remove) are
 * supported. Null keys and values are supported.
 *
 * <p>{@code containsKey(k)}, {@code put(k, v)} and {@code remove(k)} are all (expected and
 * amortized) constant time operations. Expected in the hashtable sense (depends on the hash

here till I'm somebody else"--but, oh dear!' cried Alice, with a
sudden burst of tears, `I do wish they WOULD put their heads
down!  I am so VERY tired of being all alone here!'

  As she said this she looked down at her hands, and was
surprised to see that she had put on one of the Rabbit's little
white kid gloves while she was talking.  `How CAN I have done

     *
     * @param body the request header data to update
     * @return JSON response containing the updated request header setting ID
     */
    // PUT /api/admin/reqheader/setting
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {
        validateApi(body, messages -> {});
        body.crudMode = CrudMode.EDIT;

     *
     * @param body the web authentication data to update
     * @return JSON response containing the updated web authentication setting ID
     */
    // PUT /api/admin/webauth/setting
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {
        validateApi(body, messages -> {});
        body.crudMode = CrudMode.EDIT;

    }

    // PUT /api/admin/accesstoken/setting
    /**
     * Updates an existing access token setting.
     *
     * @param body the edit body containing updated access token data
     * @return JSON response with the updated access token ID
     */
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {
        validateApi(body, messages -> {});

    * Swagger UI.
    * ReDoc.

---

Возвращаясь к предыдущему примеру кода, **FastAPI** будет:

* Проверять наличие `item_id` в пути для запросов `GET` и `PUT`.
* Проверять, что `item_id` имеет тип `int` для запросов `GET` и `PUT`.
    * Если это не так, клиент увидит полезную чёткую ошибку.

	}
	return w.fw.Write(p)
}

func (w *pooledFlateWriter) Close() error {
	w.mu.Lock()
	defer w.mu.Unlock()
	var err error
	if w.fw != nil {
		err = w.fw.Close()
		flateWriterPool.Put(w.fw)
		w.fw = nil
	}
	return err
}

var flateReaderPool sync.Pool

func newFlateReader(r io.Reader) io.ReadCloser {
	fr, ok := flateReaderPool.Get().(io.ReadCloser)
	if ok {

    private static byte[] expectedParameters(int fid, int securityInformation) {
        ByteBuffer bb = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN);
        bb.putShort((short) fid);
        bb.put((byte) 0x00); // Reserved
        bb.put((byte) 0x00); // Reserved
        bb.putInt(securityInformation);
        return bb.array();
    }

    /**
     * Provide a range of values that are valid for the constructor.
     */

        for (int i = 1; key != null || value != null; i++) {
            List values = (List) map.get(key);
            if (values == null) {
                values = new ArrayList();
                map.put(key, values);
            }
            values.add(value);
            key = connection.getHeaderFieldKey(i);
            value = connection.getHeaderField(i);
        }

## Codegröße

Dieses Beispiel mag ausführlich erscheinen. Bedenken Sie, dass wir Sicherheit, Datenmodelle, Hilfsfunktionen und *Pfadoperationen* in derselben Datei vermischen.

Aber hier ist der entscheidende Punkt.

Der Code für Sicherheit und Dependency Injection wird einmal geschrieben.

Sie können es so komplex gestalten, wie Sie möchten. Und dennoch haben Sie es nur einmal geschrieben, an einer einzigen Stelle. Mit all der Flexibilität.