import subprocess

from playwright.sync_api import Playwright, sync_playwright


# Run playwright codegen to generate the code below, copy paste the sections in run()
def run(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)
    # Update the viewport manually
    context = browser.new_context(viewport={"width": 960, "height": 1080})
    page = context.new_page()
    page.goto("http://localhost:8000/docs")

from fastapi import FastAPI

app = FastAPI(docs_url="/documentation", redoc_url=None)


@app.get("/items/")
async def read_items():

import subprocess
import time

import httpx
from playwright.sync_api import Playwright, sync_playwright


# Run playwright codegen to generate the code below, copy paste the sections in run()
def run(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)
    # Update the viewport manually
    context = browser.new_context(viewport={"width": 960, "height": 1080})
    page = context.new_page()

import subprocess

from playwright.sync_api import Playwright, sync_playwright


# Run playwright codegen to generate the code below, copy paste the sections in run()
def run(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)
    # Update the viewport manually
    context = browser.new_context(viewport={"width": 960, "height": 1080})
    page = context.new_page()
    page.goto("http://localhost:8000/docs")

    }

    @Override
    public CharMatcher negate() {
      return none();
    }
  }

  /** Implementation of {@link #none()}. */
  private static final class None extends NamedFastMatcher {

    static final CharMatcher INSTANCE = new None();

    private None() {
      super("CharMatcher.none()");
    }

    @Override
    public boolean matches(char c) {

  #
  # Statsd metrics collector converts statsd metrics into Prometheus metrics.
  statsdUdpAddress: ""
  #
  # Mutual TLS authentication between sidecars and istio control plane.
  controlPlaneAuthPolicy: NONE
  #
  # Address where istio Pilot service is running

```

OpenAPI 구조를 완전히 비활성화하려면 `openapi_url=None`으로 설정할 수 있으며, 이를 사용하여 문서화 사용자 인터페이스도 비활성화됩니다.

## 문서화 URL

포함된 두 가지 문서화 사용자 인터페이스를 설정할 수 있습니다:

* **Swagger UI**: `/docs`에서 제공됩니다.
    * `docs_url` 매개변수로 URL을 설정할 수 있습니다.
    * `docs_url=None`으로 설정하여 비활성화할 수 있습니다.
* **ReDoc**: `/redoc`에서 제공됩니다.
    * `redoc_url` 매개변수로 URL을 설정할 수 있습니다.
    * `redoc_url=None`으로 설정하여 비활성화할 수 있습니다.

## URLs da Documentação

Você pode configurar as duas interfaces de documentação incluídas:

* **Swagger UI**: acessível em `/docs`.
    * Você pode definir sua URL com o parâmetro `docs_url`.
    * Você pode desativá-la definindo `docs_url=None`.
* **ReDoc**: acessível em `/redoc`.

import subprocess
import time

import httpx
from playwright.sync_api import Playwright, sync_playwright


# Run playwright codegen to generate the code below, copy paste the sections in run()
def run(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False)
    # Update the viewport manually
    context = browser.new_context(viewport={"width": 960, "height": 1080})
    page = context.new_page()

`Optional[Something]` насправді є скороченням для `Union[Something, None]`, вони еквівалентні.

Це також означає, що в Python 3.10 ви можете використовувати `Something | None`:

//// tab | Python 3.8 і вище

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009.py!}
```