* Specific HTTP methods (`POST`, `PUT`) or all of them with the wildcard `"*"`.
* Specific HTTP headers or all of them with the wildcard `"*"`.

{* ../../docs_src/cors/tutorial001_py39.py hl[2,6:11,13:19] *}


The default parameters used by the `CORSMiddleware` implementation are restrictive by default, so you'll need to explicitly enable particular origins, methods, or headers, in order for browsers to be permitted to use them in a Cross-Domain context.

@REM M2_HOME - location of maven2's installed home dir
@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
@REM     e.g. to debug Maven itself, use
@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000

      fail(
          "Method with parameter <A extends B> where <B extends @Nullable Object> should not be"
              + " called");
    }
  }

  public void testNullBounds() {
    // NullBounds has methods whose parameters are type variables that have
    // "extends @Nullable Object" as a bound. This test ensures that NullPointerTester considers
    // those parameters to be @Nullable, so it won't call the methods.

	credElement := strings.TrimPrefix(strings.Split(strings.TrimSpace(v4Auth), ",")[0], signV4Algorithm)
	// Replace all spaced strings, some clients can send spaced
	// parameters and some won't. So we pro-actively remove any spaces
	// to make parsing easier.
	v4Auth = strings.ReplaceAll(v4Auth, " ", "")
	if v4Auth == "" {
		return sv, ErrAuthHeaderEmpty
	}

	var tmp snowball
	err := val.Decode(&tmp)
	if err != nil {
		return err
	}

	*b = BatchJobSnowball(tmp)
	b.line, b.col = val.Line, val.Column
	return nil
}

// Validate the snowball parameters in the job description
func (b BatchJobSnowball) Validate() error {
	if *b.Batch <= 0 {
		return BatchJobYamlErr{
			line: b.line,
			col:  b.col,
			msg:  "batch number should be non positive zero",
		}

///

Il contient toutes les informations sur le *chemin* et est utilisé pour générer automatiquement la documentation.

Il inclut les `tags`, `parameters`, `requestBody`, `responses`, etc.

Ce schéma OpenAPI spécifique aux *operations* est normalement généré automatiquement par **FastAPI**, mais vous pouvez également l'étendre.

/// tip | Astuce

    checkArgument(
        hasConstructorUsableByGetChecked(exceptionClass),
        "Futures.getChecked exception type (%s) must be an accessible class with an accessible "
            + "constructor whose parameters (if any) must be of type String and/or Throwable",
        exceptionClass);
  }

  private FuturesGetChecked() {}

    * le <abbr title="JavaScript Object Notation">JSON</abbr>.
    * <abbr title="en anglais : path parameters">les paramètres du chemin</abbr>.
    * <abbr title="en anglais : query parameters">les paramètres de la requête</abbr>.
    * les cookies.
    * <abbr title="en anglais : headers">les en-têtes</abbr>.
    * <abbr title="en anglais : forms">les formulaires</abbr>.

            """
        ),
    ] = None,
    swagger_ui_parameters: Annotated[
        Optional[dict[str, Any]],
        Doc(
            """
            Configuration parameters for Swagger UI.

            It defaults to [swagger_ui_default_parameters][fastapi.openapi.docs.swagger_ui_default_parameters].
            """
        ),
    ] = None,
) -> HTMLResponse:
    """

No exemplo acima, o modelo de entrada é um modelo Pydantic v1, e o modelo de saída (definido em `response_model=ItemV2`) é um modelo Pydantic v2.

### Parâmetros do Pydantic v1 { #pydantic-v1-parameters }