4 -> {
          if (value < 0) {
            throw IOException("PROTOCOL_ERROR SETTINGS_INITIAL_WINDOW_SIZE > 2^31 - 1")
          }
        }

        // SETTINGS_MAX_FRAME_SIZE
        5 -> {
          if (value < INITIAL_MAX_FRAME_SIZE || value > 16777215) {
            throw IOException("PROTOCOL_ERROR SETTINGS_MAX_FRAME_SIZE: $value")
          }
        }

                ssn.removeAttribute("npa-" + server);
            }
            if (sae.getNtStatus() == NtStatus.NT_STATUS_ACCESS_VIOLATION) {
                /*
                 * Server challenge no longer valid for
                 * externally supplied password hashes.
                 */
                resp.sendRedirect(req.getRequestURL().toString());
                return;
            }

            public void setHeader(String name, String value) {
                List<String> values = new ArrayList<>();
                values.add(value);
                responseHeaders.put(name, values);
            }

            @Override
            public void addHeader(String name, String value) {
                responseHeaders.computeIfAbsent(name, k -> new ArrayList<>()).add(value);
            }

            @Override

@memberof Popper.Utils\n * @argument {Array} arr\n * @argument prop\n * @argument value\n * @returns index or -1\n */\nexport default function findIndex(arr, prop, value) {\n  // use native findIndex if supported\n  if (Array.prototype.findIndex) {\n    return arr.findIndex(cur => cur[prop] === value);\n  }\n\n  // use `find` + `indexOf` if `findIndex` isn't supported\n  const match = find(arr, obj => obj[prop] === value);\n  return arr.indexOf(match);\n}\n","import isFunction from './isFunction';\nimport...

     *
     * @param name The property name
     * @param value The property value
     */
    public void addHttpClientProperty(final String name, final Object value) {
        if (StringUtil.isNotBlank(name) && value != null) {
            httpClientPropertyMap.put(name, value);
        }
    }

    /**
     * Processes robots.txt for the given URL.

   */
  static boolean casValue(AbstractFutureState<?> future, @Nullable Object expect, Object update) {
    return ATOMIC_HELPER.casValue(future, expect, update);
  }

  /** Returns the value of the future, using a volatile read. */
  final @Nullable Object value() {
    return valueField;
  }

  /** Returns the head of the listener stack, using a volatile read. */
  final @Nullable Listener listeners() {
    return listenersField;
  }

    state.addListener(listener, executor);
  }

  /**
   * Initiates service {@linkplain Service#startAsync startup} on all the services being managed. It
   * is only valid to call this method if all of the services are {@linkplain State#NEW new}.
   *
   * @return this
   * @throws IllegalStateException if any of the Services are not {@link State#NEW new} when the
   *     method is called.

```

El parámetro `name` sigue siendo **requerido** (no *opcional*) porque no tiene un valor predeterminado. Aún así, `name` acepta `None` como valor:

```Python
say_hi(name=None)  # Esto funciona, None es válido 🎉
```

La buena noticia es que, una vez que estés en Python 3.10, no tendrás que preocuparte por eso, ya que podrás simplemente usar `|` para definir uniones de tipos:

///

### Leer Heroes con `HeroPublic`

Podemos hacer lo mismo que antes para **leer** `Hero`s, nuevamente, usamos `response_model=list[HeroPublic]` para asegurar que los datos se validen y serialicen correctamente.

{* ../../docs_src/sql_databases/tutorial002_an_py310.py ln[65:72] hl[65] *}

### Leer Un Hero con `HeroPublic`

Podemos **leer** un único héroe:

* **WebSocket** desteği.
* **GraphQL** desteği.
* Kullanım halinde arka plan işlevleri.
* Başlatma ve kapatma eventleri(startup and shutdown).
* Test sunucusu HTTPX üzerine kurulu.
* **CORS**, GZip, Static dosyalar, Streaming responseları.
* **Session and Cookie** desteği.