Nếu bạn cần 2 phút để làm mới lại cách sử dụng các kiểu dữ liệu mới của Python (thậm chí nếu bạn không sử dụng FastAPI), xem hướng dẫn ngắn: [Kiểu dữ liệu Python](python-types.md){.internal-link target=_blank}.

Bạn viết chuẩn Python với kiểu dữ liệu như sau:

```Python
from datetime import date

from pydantic import BaseModel

# Declare a variable as a str
# and get editor support inside the function
def main(user_id: str):

        assertQueryContext(
                "{\"function_score\":{\"query\":{\"prefix\":{\"site\":{\"value\":\"fess.codelibs.org\",\"boost\":1.0}}},\"functions\":[{\"filter\":{\"match_all\":{\"boost\":1.0}},\"field_value_factor\":{\"field\":\"boost\",\"factor\":1.0,\"modifier\":\"none\"}}],\"score_mode\":\"multiply\",\"max_boost\":3.4028235E38,\"boost\":1.0}}",
                Map.of("site", List.of("fess.codelibs.org*")), //
                Set.of("fess.codelibs.org"), //

Validaciones genéricas y metadatos:

* `alias`
* `title`
* `description`
* `deprecated`

Validaciones específicas para strings:

* `min_length`
* `max_length`
* `pattern`

En estos ejemplos viste cómo declarar validaciones para valores de tipo `str`.

```

////

#### Utilizando `Union` ou `Optional`

Se você está utilizando uma versão do Python abaixo da 3.10, aqui vai uma dica do meu ponto de vista bem **subjetivo**:

* 🚨 Evite utilizar `Optional[SomeType]`
* No lugar, ✨ **use `Union[SomeType, None]`** ✨.

            }
            else -> {
              // Ignore an unexpected pong.
            }
          }
        }
      } else {
        // Send a reply to a client ping if this is a server and vice versa.
        writerQueue.execute("$connectionName ping") {
          writePing(true, payload1, payload2)
        }
      }
    }

    override fun goAway(
      lastGoodStreamId: Int,

labels.searchoptions_menu_lang=Idioma
labels.searchoptions_menu_labels=Rótulos
labels.error_title=Erro
labels.system_error_title=Erro do sistema
labels.contact_site_admin=Entre em contato com o administrador do site.
labels.request_error_title=O formato da solicitação está incorreto.
labels.bad_request=A solicitação para a URL está incorreta.
labels.page_not_found_title=Página não encontrada.
labels.check_url=Verifique a URL.

  }

  /**
   * Generates a decorated collection that remains consistent with the values in the multimap for
   * the provided key. Changes to the multimap may alter the returned collection, and vice versa.
   */
  Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection) {
    return new WrappedCollection(key, collection, null);
  }

  final List<V> wrapList(

		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}
}

// SitePerfHandler -  measures network throughput between site replicated setups
func (a adminAPIHandlers) SitePerfHandler(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.HealthInfoAdminAction)

		sessionPolicy: sp,
	}
	updatedAt, err := globalIAMSys.UpdateServiceAccount(ctx, accessKey, opts)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	// Call site replication hook - non-root user accounts are replicated.
	if svcAccount.ParentUser != globalActiveCred.AccessKey {
		replLogIf(ctx, globalSiteReplicationSys.IAMChangeHook(ctx, madmin.SRIAMItem{
			Type: madmin.SRIAMItemSvcAcc,

				return
			}
		}()
		h.ServeHTTP(w, r)
	})
}

// setUploadForwardingMiddleware middleware forwards multiparts requests
// in a site replication setup to peer that initiated the upload
func setUploadForwardingMiddleware(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {