}
}
```

/// note | Nota

Ten en cuenta que aunque el `item` se declaró de la misma manera que antes, ahora se espera que esté dentro del cuerpo con una clave `item`.

///

**FastAPI** hará la conversión automática del request, de modo que el parámetro `item` reciba su contenido específico y lo mismo para `user`.

            assertTrue(result.length > 0, "Result should not be empty");

            // Verify round-trip conversion
            String roundTrip = new String(result, StandardCharsets.UTF_16LE);
            assertEquals(UNICODE_STRING, roundTrip, "Round-trip conversion should preserve Unicode");
        }

        @Test
        @DisplayName("getASCIIBytes should encode string as ASCII")

@GwtCompatible
final class NullnessCasts {
  /**
   * Accepts a {@code @Nullable T} and returns a plain {@code T}, without performing any check that
   * that conversion is safe.
   *
   * <p>This method is intended to help with usages of type parameters that have {@linkplain
   * ParametricNullness parametric nullness}. If a type parameter instead ranges over only non-null

That means that **any value** read in Python from an environment variable **will be a `str`**, and any conversion to a different type or any validation has to be done in code.

   * @throws IllegalArgumentException if the number of actual and formal parameters differ; if an
   *     unwrapping conversion for primitive arguments fails; or if, after possible unwrapping, a
   *     parameter value cannot be converted to the corresponding formal parameter type by a method
   *     invocation conversion.
   * @throws InvocationTargetException if the underlying method or constructor throws an exception.
   */

    }

    /**
     * Sets the URL conversion map for transforming URLs.
     *
     * @param convertUrlMap the map of regex patterns to replacement strings
     */
    public void setConvertUrlMap(final Map<String, String> convertUrlMap) {
        this.convertUrlMap.putAll(convertUrlMap);
    }

    /**
     * Adds a URL conversion rule.
     *

    * <abbr title="en anglais : forms">les formulaires</abbr>.
    * <abbr title="en anglais : files">les fichiers</abbr>.
* <abbr title="aussi connu sous le nom de : serialization, parsing, marshalling">La conversion</abbr> des données de sortie : conversion des données et types Python en données réseau (au format <abbr title="JavaScript Object Notation">JSON</abbr>), permettant de convertir :
    * les types Python (`str`, `int`, `float`, `bool`, `list`, etc).

 * For other types, the converted object is created from the string representation of the source object.
 * </p>
 * <p>
 * If no pattern is specified, the pattern used for conversion depends on the locale as follows:
 * </p>
 * <table border="1">
 * <caption>Conversion Patterns</caption>
 * <tr>
 * <th>Category</th>
 * <th>Pattern</th>
 * <th>Example for {@link Locale#JAPANESE}</th>
 * </tr>
 * <tr>

        ServerMessageBlock.writeTime(0, buffer, 0);
        // When zero is written, it stays as zero in buffer
        // When read back, it converts to negative Unix time due to Windows FileTime conversion
        long expectedTime = -SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601;
        assertEquals(expectedTime, ServerMessageBlock.readTime(buffer, 0));
    }

    @Test
    void testUTimeReadWrite() {

```

/// note

"Notez que, bien que nous ayons déclaré le paramètre `item` de la même manière que précédemment, il est maintenant associé à la clé `item` dans le corps de la requête."`.

///

**FastAPI** effectue la conversion de la requête de façon transparente, de sorte que les objets `item` et `user` se trouvent correctement définis.