Server->>Proxy: HTTP Response<br/>with correct HTTPS URLs

    Proxy->>Client: HTTPS Response
```

O **proxy** intercepta a requisição original do cliente e adiciona os headers especiais de encaminhamento (`X-Forwarded-*`) antes de repassar a requisição para o **servidor da aplicação**.

Esses headers preservam informações sobre a requisição original que, de outra forma, seriam perdidas:

The end result is that the item paths are now:

* `/items/`
* `/items/{item_id}`

...as we intended.

* They will be marked with a list of tags that contain a single string `"items"`.
    * These "tags" are especially useful for the automatic interactive documentation systems (using OpenAPI).
* All of them will include the predefined `responses`.
* All these *path operations* will have the list of `dependencies` evaluated/executed before them.

Essa resposta requer a instalação do pacote `ujson`, com o comando `pip install ujson`, por exemplo.

///

/// warning | Atenção

`ujson` é menos cauteloso que a implementação nativa do Python na forma que os casos especiais são tratados

///

{* ../../docs_src/custom_response/tutorial001_py39.py hl[2,7] *}

/// tip | Dica

É possível que `ORJSONResponse` seja uma alternativa mais rápida.

///

Não tínhamos uma maneira de **atualizar um hero** na versão anterior do app, mas agora com **múltiplos modelos**, podemos fazer isso. 🎉

        checkNotNull(rowKey, "rowKey"),
        checkNotNull(columnKey, "columnKey"),
        checkNotNull(value, "value"));
  }

  /**
   * A builder for creating immutable table instances, especially {@code public static final} tables
   * ("constant tables"). Example:
   *
   * {@snippet :
   * static final ImmutableTable<Integer, Character, String> SPREADSHEET =

 * CacheLoader}</a>, etc.), so you can use Caffeine without needing to use any Guava types.
 * Caffeine's types are better than Guava's, especially for <a
 * href="https://www.javadoc.io/doc/com.github.ben-manes.caffeine/caffeine/latest/com.github.benmanes.caffeine/com/github/benmanes/caffeine/cache/AsyncLoadingCache.html">their

    checkNonnegative(expectedSize, "expectedSize");
    return new Builder<>(expectedSize);
  }

  /**
   * A builder for creating immutable bimap instances, especially {@code public static final} bimaps
   * ("constant bimaps"). Example:
   *
   * {@snippet :
   * static final ImmutableBiMap<String, Integer> WORD_TO_INT =
   *     new ImmutableBiMap.Builder<String, Integer>()

### Contêineres com Múltiplos Processos e Casos Especiais { #containers-with-multiple-processes-and-special-cases }

Claro, existem **casos especiais** em que você pode querer ter **um contêiner** com vários **processos workers do Uvicorn** dentro.

   * Builder} constructor.
   */
  public static <E> Builder<E> builder() {
    return new Builder<>();
  }

  /**
   * A builder for creating immutable multiset instances, especially {@code public static final}
   * multisets ("constant multisets"). Example:
   *
   * {@snippet :
   * public static final ImmutableMultiset<Bean> BEANS =
   *     new ImmutableMultiset.Builder<Bean>()

    checkNonnegative(expectedSize, "expectedSize");
    return new ImmutableList.Builder<>(expectedSize);
  }

  /**
   * A builder for creating immutable list instances, especially {@code public static final} lists
   * ("constant lists"). Example:
   *
   * {@snippet :
   * public static final ImmutableList<Color> GOOGLE_COLORS =
   *     new ImmutableList.Builder<Color>()