NoPersistence bool `msg:"np"`
}

// CheckPartsHandlerParams are parameters for CheckPartsHandler
type CheckPartsHandlerParams struct {
	DiskID   string   `msg:"id"`
	Volume   string   `msg:"v"`
	FilePath string   `msg:"fp"`
	FI       FileInfo `msg:"fi"`
}

// DeleteFileHandlerParams are parameters for DeleteFileHandler
type DeleteFileHandlerParams struct {
	DiskID   string        `msg:"id"`

            "/path_examples/{item_id}": {
                "get": {
                    "summary": "Path Examples",
                    "operationId": "path_examples_path_examples__item_id__get",
                    "parameters": [
                        {
                            "name": "item_id",
                            "in": "path",
                            "required": True,
                            "schema": {

Esa configuración cambiaría el tema de color del resaltado de sintaxis:

<img src="/img/tutorial/extending-openapi/image04.png">

## Cambiar los parámetros predeterminados de Swagger UI { #change-default-swagger-ui-parameters }

FastAPI incluye algunos parámetros de configuración predeterminados apropiados para la mayoría de los casos de uso.

Incluye estas configuraciones predeterminadas:

                }
            }

            param("env.PERFORMANCE_DB_PASSWORD_TCAGENT", "%performance.db.password.tcagent%")
            param("additional.gradle.parameters", "")
        }

        val buildTypeThis = this
        steps {
            killProcessStep(buildTypeThis, KILL_ALL_GRADLE_PROCESSES, os)
            substDirOnWindows(os)
            gradleWrapper {

# Cookie Parameter Models { #cookie-parameter-models }

If you have a group of **cookies** that are related, you can create a **Pydantic model** to declare them. 🍪

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

/// tip

# Body - Fields { #body-fields }

The same way you can declare additional validation and metadata in *path operation function* parameters with `Query`, `Path` and `Body`, you can declare validation and metadata inside of Pydantic models using Pydantic's `Field`.

## Import `Field` { #import-field }

First, you have to import it:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}


/// warning

    return {"p": p.p}


@pytest.mark.parametrize(
    "path",
    ["/optional-str", "/model-optional-str"],
)
def test_optional_str_schema(path: str):
    assert app.openapi()["paths"][path]["get"]["parameters"] == [
        {
            "required": False,
            "schema": {
                "anyOf": [{"type": "string"}, {"type": "null"}],
                "title": "P",
            },
            "name": "p",

## Using `BackgroundTasks` { #using-backgroundtasks }

First, import `BackgroundTasks` and define a parameter in your *path operation function* with a type declaration of `BackgroundTasks`:

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[1,13] *}

**FastAPI** will create the object of type `BackgroundTasks` for you and pass it as that parameter.

## Create a task function { #create-a-task-function }

private
fun JApiMethod.isEnumImplicitMethodValueOf(): Boolean {
    return name == "valueOf" && parameters.size == 1 && parameters.first().type == "java.lang.String"
}


private
fun JApiMethod.isEnumImplicitMethodValues(): Boolean {
    return name == "values" && parameters.size == 0

    }

    private Stream<String> getParameterNames(Parameter parameter) {
        if (parameter.getAlias() != null) {
            return Stream.of(parameter.getName(), parameter.getAlias());
        } else {
            return Stream.of(parameter.getName());
        }
    }

    private Set<String> getUnknownParameters(MojoExecution mojoExecution, Set<String> parameters) {