También significa que si obtienes datos del objeto `Request` directamente (por ejemplo, leyendo el cuerpo) no serán validados, convertidos o documentados (con OpenAPI, para la interfaz automática de usuario de la API) por FastAPI.

/// info | Info

Um `EmailStr` zu verwenden, installieren Sie zuerst [`email-validator`](https://github.com/JoshData/python-email-validator).

Stellen Sie sicher, dass Sie eine [virtuelle Umgebung](../virtual-environments.md) erstellen, sie aktivieren und es dann installieren, zum Beispiel:

```console
$ pip install email-validator
```

oder mit:

```console
$ pip install "pydantic[email]"
```

///

/** File generated by Grunt -- do not modify
 *  JQUERY-FORM-VALIDATOR
 *
 *  @version 2.3.77
 *  @website http://formvalidator.net/
 *  @author Victor Jonsson, http://victorjonsson.se
 *  @license MIT
 */

你會在後續文件中學到更多關於加入額外資訊的內容，特別是在宣告範例時。

/// warning

傳入 `Field` 的額外鍵也會出現在你的應用程式所產生的 OpenAPI schema 中。
由於這些鍵不一定屬於 OpenAPI 規格的一部分，一些 OpenAPI 工具（例如 [OpenAPI 驗證器](https://validator.swagger.io/)）可能無法處理你產生的 schema。

///

## 回顧 { #recap }

你可以使用 Pydantic 的 `Field` 為模型屬性宣告額外的驗證與中繼資料。

errors.header = <ul class="has-error">
errors.footer = </ul>
errors.prefix = <li><i class="fa fa-exclamation-circle"></i>
errors.suffix = </li>
# ----------------------------------------------------------
# Javax Validator
# ---------------
constraints.AssertFalse.message = {item} moet onwaar zijn.
constraints.AssertTrue.message = {item} moet waar zijn.
constraints.DecimalMax.message = {item} moet kleiner zijn dan {value}.

errors.header = <ul class="has-error">
errors.footer = </ul>
errors.prefix = <li><i class="fa fa-exclamation-circle"></i>
errors.suffix = </li>
# ----------------------------------------------------------
# Javax Validator
# ---------------
constraints.AssertFalse.message = {item} должно быть ложным.
constraints.AssertTrue.message = {item} должно быть истинным.
constraints.DecimalMax.message = {item} должно быть меньше {value}.

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.util.Hexdump;

/**
 * Privilege Attribute Certificate (PAC) decoder for Kerberos tickets.
 * Parses and validates PAC data structures containing user authorization information
 * from Active Directory Kerberos tickets.
 */
public class Pac {

    private static final Logger log = LoggerFactory.getLogger(Pac.class);

     */
    byte[] getSessionKey();

    /**
     * Gets the signing key for SMB2/3
     *
     * @return the signing key or null if not available
     */
    byte[] getSigningKey();

    /**
     * Validates authentication credentials
     *
     * @return true if credentials are valid
     */
    boolean validateCredentials();

    /**
     * Clears sensitive authentication data
     */

}

// isEmpty returns true if Tags field is null
func (a And) isEmpty() bool {
	return len(a.Tags) == 0 && !a.Prefix.set &&
		a.ObjectSizeGreaterThan == 0 && a.ObjectSizeLessThan == 0
}

// Validate - validates the And field
func (a And) Validate() error {
	// > This is used in a Lifecycle Rule Filter to apply a logical AND to two or more predicates.
	// ref: https://docs.aws.amazon.com/AmazonS3/latest/API/API_LifecycleRuleAndOperator.html

/** File generated by Grunt -- do not modify
 *  JQUERY-FORM-VALIDATOR
 *
 *  @version 2.3.77
 *  @website http://formvalidator.net/
 *  @author Victor Jonsson, http://victorjonsson.se
 *  @license MIT
 */