* Создайте файл `main.py` со следующим содержимым:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

<details markdown="1">

* Only use the first IP address got from instance metadata. This is because Azure CNI would set up a list of IP addresses in instance metadata, while only the first one is the Node's IP. ([#71736](https://github.com/kubernetes/kubernetes/pull/71736), [@feiskyer](https://github.com/feiskyer))

                logger.info("Start scheduler \"{}\"", schedulerId);
                return;
            }
            ThreadUtil.sleep(1000L);
        }
        fail("could not start job.");
    }

    protected static void waitJob(final String namePrefix) {
        Boolean isRunning = false;
        int count = 0;

            }
            // parse a content
            parser.parse(is, handler);

            return handler.getDataMap();
        } catch (final Exception e) {
            throw new CrawlerSystemException("Could not create a data map from XML content.", e);
        }
    }

    private static class DocHandler extends DefaultHandler {
        private final Map<String, Object> dataMap = new HashMap<>();

                HcHttpClient.constructRedirectLocation("http://example.com/", "テスト"));
        assertEquals("http://example.com/hello%20world", HcHttpClient.constructRedirectLocation("http://example.com/", "hello world"));
        assertEquals("http://user:******@****.***/path/file",
                HcHttpClient.constructRedirectLocation("http://user:******@****.***/path/", "file"));

{* ../../docs_src/custom_response/tutorial009c.py hl[9:14,17] *}

Agora em vez de retornar:

```json
{"message": "Hello World"}
```

...essa resposta retornará:

```json
{
  "message": "Hello World"
}
```

Obviamente, você provavelmente vai encontrar maneiras muito melhores de se aproveitar disso do que a formatação de JSON. 😉

## Classe de resposta padrão

 * use a secondary key to break ties in primary priority values. For example, here is a class that
 * applies first-in-first-out tie-breaking to comparable elements. To use it, you would insert a
 * {@code new FIFOEntry(anEntry)} instead of a plain entry object.
 *
 * <pre>{@code
 * class FIFOEntry<E extends Comparable<? super E>> implements Comparable<FIFOEntry<E>> {

   * 3. Tests on a mechanically generated dataset for chains starting with percentiles();
   * 4. Tests of illegal usages of the API.
   */

  /*
   * Covering every combination would lead to an explosion in the number of tests. So we cover only:
   * - median with compute taking a double-collection and with computeInPlace;
   * - quartiles with index and with indexes taking int-varargs, and with compute taking a

   * 3. Tests on a mechanically generated dataset for chains starting with percentiles();
   * 4. Tests of illegal usages of the API.
   */

  /*
   * Covering every combination would lead to an explosion in the number of tests. So we cover only:
   * - median with compute taking a double-collection and with computeInPlace;
   * - quartiles with index and with indexes taking int-varargs, and with compute taking a

    AtomicBoolean interrupted = new AtomicBoolean();
    // we need to use another thread because it will be interrupted and thus using
    // the current one, owned by JUnit, would make the test fail
    Thread thread =
        new Thread(
            new Runnable() {
              @Override
              public void run() {