Ancak Python’da, iç tipleri olan list’leri (ya da "type parameter" içeren tipleri) tanımlamanın belirli bir yolu vardır:

### Tip parametresiyle bir `list` tanımlayın { #declare-a-list-with-a-type-parameter }

`list`, `dict`, `tuple` gibi type parameter (iç tip) alan tipleri tanımlamak için, iç tipi(leri) köşeli parantezlerle "type parameter" olarak verin: `[` ve `]`

```Python

E.g.:

* To pass a *path* or *query* parameter, add it to the URL itself.
* To pass a JSON body, pass a Python object (e.g. a `dict`) to the parameter `json`.
* If you need to send *Form Data* instead of JSON, use the `data` parameter instead.
* To pass *headers*, use a `dict` in the `headers` parameter.
* For *cookies*, a `dict` in the `cookies` parameter.

* `@app.get()`
* `@app.post()`
* `@app.put()`
* `@app.delete()`
* usw.

{* ../../docs_src/response_status_code/tutorial001_py310.py hl[6] *}

/// note | Hinweis

from typing import Optional


def say_hi(name: Optional[str]):
    print(f"Hey {name}!")
```

Der Parameter `name` ist als `Optional[str]` definiert, aber er ist **nicht optional**, Sie können die Funktion nicht ohne den Parameter aufrufen:

```Python
say_hi()  # Oh nein, das löst einen Fehler aus! 😱
```

import org.junit.runners.Parameterized.Parameters;

/** Tests for a directed {@link StandardMutableGraph}. */
@AndroidIncompatible
@RunWith(Parameterized.class)
@NullUnmarked
public final class StandardMutableDirectedGraphTest extends AbstractStandardDirectedGraphTest {

  @Parameters(name = "allowsSelfLoops={0}, incidentEdgeOrder={1}")
  public static Collection<Object[]> parameters() {
    return Arrays.asList(

import org.junit.runners.Parameterized.Parameters;

/** Tests for a directed {@link StandardMutableGraph}. */
@AndroidIncompatible
@RunWith(Parameterized.class)
@NullUnmarked
public final class StandardMutableDirectedGraphTest extends AbstractStandardDirectedGraphTest {

  @Parameters(name = "allowsSelfLoops={0}, incidentEdgeOrder={1}")
  public static Collection<Object[]> parameters() {
    return Arrays.asList(

     *
     * @return Array of arguments
     */
    public Object[] getMethodArgs() {
        return methodArgs;
    }

    /**
     * Returns the array of parameter types.
     *
     * @return Array of parameter types
     */
    public Class<?>[] getParamTypes() {
        return paramTypes;
    }

    private static String getSignature(final Object... methodArgs) {

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

     * Do not instantiate.
     */
    protected ConstructorUtil() {
    }

    /**
     * Creates and initializes a new instance of the class declared by the specified constructor with the given initialization parameters.
     *
     * @param <T> the type of the object
     * @param constructor the constructor (must not be {@literal null})
     * @param args the array of objects to be passed as arguments to the constructor invocation

Эта настройка изменит цветовую тему подсветки синтаксиса:

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

## Изменить параметры Swagger UI по умолчанию { #change-default-swagger-ui-parameters }

FastAPI включает некоторые параметры конфигурации по умолчанию, подходящие для большинства случаев.

Это включает следующие настройки по умолчанию:

{* ../../fastapi/openapi/docs.py ln[9:24] hl[18:24] *}