///

## Використання `Annotated` у типі параметра `q` { #use-annotated-in-the-type-for-the-q-parameter }

Пам’ятаєте, як я раніше розповідав, що `Annotated` можна використовувати для додавання метаданих до параметрів у [Вступі до типів Python](../python-types.md#type-hints-with-metadata-annotations)?

* 경로 처리 데코레이터
* 경로 처리 함수

* body
* 요청 body
* 응답 body
* JSON body
* form body
* file body
* 함수 body

* parameter
* body parameter
* path parameter
* query parameter
* cookie parameter
* header parameter
* form parameter
* function parameter

* event
* startup event
* 서버 startup
* shutdown event
* lifespan event

* handler
* event handler

OpenAPI también añadió los campos `example` y `examples` a otras partes de la especificación:

* [`Parameter Object` (en la especificación)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#parameter-object) que era usado por FastAPI:
    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`

O OpenAPI também adicionou os campos `example` e `examples` a outras partes da especificação:

* [`Parameter Object` (na especificação)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#parameter-object), usado no FastAPI por:
    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`

# Modelos de Parámetros Query { #query-parameter-models }

Si tienes un grupo de **parámetros query** que están relacionados, puedes crear un **modelo de Pydantic** para declararlos.

Esto te permitiría **reutilizar el modelo** en **múltiples lugares** y también declarar validaciones y metadatos para todos los parámetros de una vez. 😎

/// note | Nota

Esto es compatible desde la versión `0.115.0` de FastAPI. 🤓

///

Mais ce guide vous montre, plus ou moins, la façon dont ils sont censés être utilisés.

///

### Utiliser le paramètre `exclude_unset` de Pydantic { #using-pydantics-exclude-unset-parameter }

Si vous souhaitez recevoir des mises à jour partielles, il est très utile d’utiliser le paramètre `exclude_unset` dans la méthode `.model_dump()` du modèle Pydantic.

Comme `item.model_dump(exclude_unset=True)`.

   * true} for an object that has not actually been put in the {@code BloomFilter}.
   *
   * <p>Ideally, this number should be close to the {@code fpp} parameter passed in {@linkplain
   * #create(Funnel, int, double)}, or smaller. If it is significantly higher, it is usually the
   * case that too many elements (more than expected) have been put in the {@code BloomFilter},

    assertThat(set).containsExactly("a", "b", "c", "d", "e", "f").inOrder();
  }

  /*
   * Tests that we workaround GWT bug #3621 (or that it is already fixed).
   *
   * A call to of() with a parameter that is not a plain Object[] (here,
   * Interface[]) creates a RegularImmutableSortedSet backed by an array of that
   * type. Later, RegularImmutableSortedSet.toArray() calls System.arraycopy()

   *   multisetToModify.remove(e);
   * }
   * }
   *
   * @return {@code true} if {@code multisetToModify} was changed as a result of this operation
   * @since 18.0 (present in 10.0 with a requirement that the second parameter be a {@code
   *     Multiset})
   */
  @CanIgnoreReturnValue
  public static boolean removeOccurrences(
      Multiset<?> multisetToModify, Iterable<?> occurrencesToRemove) {

   *   multisetToModify.remove(e);
   * }
   * }
   *
   * @return {@code true} if {@code multisetToModify} was changed as a result of this operation
   * @since 18.0 (present in 10.0 with a requirement that the second parameter be a {@code
   *     Multiset})
   */
  @CanIgnoreReturnValue
  public static boolean removeOccurrences(
      Multiset<?> multisetToModify, Iterable<?> occurrencesToRemove) {