<img src="/img/tutorial/path-operation-configuration/image01.png">

### Tags con Enums { #tags-with-enums }

Si tienes una gran aplicación, podrías terminar acumulando **varias tags**, y querrías asegurarte de que siempre uses la **misma tag** para *path operations* relacionadas.

En estos casos, podría tener sentido almacenar las tags en un `Enum`.

Si necesitas usar algunas de las herramientas específicas de FastAPI para parámetros como `Body`, `Query`, `Form`, etc. con modelos de Pydantic v1, puedes importarlas de `fastapi.temp_pydantic_v1_params` mientras terminas la migración a Pydantic v2:

{* ../../docs_src/pydantic_v1_in_v2/tutorial004_an_py310.py hl[4,18] *}

### Migra por pasos { #migrate-in-steps }

/// tip | Consejo

   * This is useful if the given service uses daemon threads, and we want to keep the JVM from
   * exiting immediately on shutdown, instead giving these daemon threads a chance to terminate
   * normally.
   *
   * @param service ExecutorService which uses daemon threads
   * @param terminationTimeout how long to wait for the executor to finish before terminating the
   *     JVM

rights granted under Section 2(b) shall terminate as of the date such
litigation is filed.

All Recipient's rights under this Agreement shall terminate if it
fails to comply with any of the material terms or conditions of this
Agreement and does not cure such failure in a reasonable period of
time after becoming aware of such noncompliance. If all Recipient's
rights under this Agreement terminate, Recipient agrees to cease use

* During namespace deletion some controllers create event and log spam because they do not recognize namespace deletion as a terminal state. ([#84123](https://github.com/kubernetes/kubernetes/pull/84123), [@smarterclayton](https://github.com/smarterclayton))

                    } catch (InterruptedException e) {
                        throw new InterruptedIOException(e.toString());
                    }
                    return FileVisitResult.TERMINATE;
                } else {
                    return FileVisitResult.CONTINUE;
                }
            }

            @Override

Você pode definir tarefas em segundo plano para serem executadas *após* retornar uma resposta.

Isso é útil para operações que precisam acontecer após uma request, mas que o cliente não precisa realmente esperar a operação terminar antes de receber a resposta.

Isso inclui, por exemplo:

* Notificações por e-mail enviadas após realizar uma ação:

* Returns error if NodeGetInfo fails. ([#68979](https://github.com/kubernetes/kubernetes/pull/68979), [@xing-yang](https://github.com/xing-yang))
* Pod disruption budgets shouldn't be checked for terminal pods while evicting ([#68892](https://github.com/kubernetes/kubernetes/pull/68892), [@ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))

        }
        return crawlerContext.sessionId;
    }

    /**
     * Waits for the crawling process to terminate indefinitely.
     */
    public void awaitTermination() {
        awaitTermination(0);
    }

    /**
     * Waits for the crawling process to terminate for a specified duration.
     * @param millis The maximum time to wait in milliseconds. A value of 0 means wait indefinitely.
     */

Y luego agregando el argumento de palabra clave adicional `hashed_password=hashed_password`, como en:

```Python
UserInDB(**user_in.dict(), hashed_password=hashed_password)
```

...termina siendo como:

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],
    full_name = user_dict["full_name"],