{* ../../docs_src/path_params/tutorial001.py hl[6:7] *}

La valeur du paramètre `item_id` sera transmise à la fonction dans l'argument `item_id`.

Donc, si vous exécutez cet exemple et allez sur <a href="http://127.0.0.1:8000/items/foo" class="external-link" target="_blank">http://127.0.0.1:8000/items/foo</a>,
vous verrez comme réponse :

```JSON

                }
            }
        });
        return counter.get();
    }

    /**
     * Executes the crawler process in a separate JVM.
     * This method constructs the command line arguments, sets up the classpath,
     * and launches the crawler as an external process. It handles process lifecycle,
     * monitors output, and ensures proper cleanup.
     *

Breakpoints are defined as a map of (name: minimum width), order from small to large:\n//\n//    (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px)\n//\n// The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.\n\n// Name of the next breakpoint, or null for the last breakpoint.\n//\n//    >> breakpoint-next(sm)\n//    md\n//    >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))\n//    md\n//    >> breakpoint-next(sm,...

}

my_second_user: User = User(**second_user_data)
```

/// info | Informação

`**second_user_data` quer dizer:

Passe as chaves e valores do dicionário `second_user_data` diretamente como argumentos chave-valor, equivalente a: `User(id=4, name="Mary", joined="2018-11-30")`

///

### Suporte de editores { #editor-support }

{* ../../docs_src/security/tutorial003_an_py310.py hl[82:85] *}

#### Sobre `**user_dict` { #about-user-dict }

`UserInDB(**user_dict)` significa:

*Passe as chaves e valores de `user_dict` diretamente como argumentos de valor-chave, equivalente a:*

```Python
UserInDB(
    username = user_dict["username"],
    email = user_dict["email"],
    full_name = user_dict["full_name"],
    disabled = user_dict["disabled"],

  private static final class TypeMappingIntrospector extends TypeVisitor {

    private final Map<TypeVariableKey, Type> mappings = new HashMap<>();

    /**
     * Returns type mappings using type parameters and type arguments found in the generic
     * superclass and the super interfaces of {@code contextClass}.
     */
    static ImmutableMap<TypeVariableKey, Type> getTypeMappings(Type contextType) {
      checkNotNull(contextType);

///

### `FileResponse` { #fileresponse }

Transmite un archivo asincrónicamente como response.

Toma un conjunto diferente de argumentos para crear un instance que los otros tipos de response:

* `path` - La path del archivo para el archivo a transmitir.
* `headers` - Cualquier header personalizado para incluir, como un diccionario.

are defined as a map of (name: minimum width), order from small to large:\n//\n//    (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px, xxl: 1400px)\n//\n// The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.\n\n// Name of the next breakpoint, or null for the last breakpoint.\n//\n//    >> breakpoint-next(sm)\n//    md\n//    >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px, xxl: 1400px))\n//    md\n//    >> breakpoint-next(sm,...

///

### `FileResponse` { #fileresponse }

Streamt eine Datei asynchron als Response.

Nimmt zur Instanziierung einen anderen Satz von Argumenten entgegen als die anderen Response-Typen:

* `path` – Der Dateipfad zur Datei, die gestreamt werden soll.
* `headers` – Alle benutzerdefinierten Header, die inkludiert werden sollen, als Dictionary.

 * <td>characters</td>
 * <td>&times;</td>
 * </tr>
 * </table>
 * <p>
 * Methods that take {@link InputStream}/{@link OutputStream}/{@link Reader}/{@link Writer} as arguments do not call {@link Closeable#close()} on the arguments. The caller is responsible for closing them.
 * </p>
 * <p>
 * Any {@link IOException} thrown by these methods is wrapped and thrown as an {@link IORuntimeException}.
 * </p>
 *