/** ISO datetime format pattern with milliseconds and UTC timezone. */
    public static final String ISO_DATETIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

    /** Date optional time format identifier. */
    public static final String DATE_OPTIONAL_TIME = "date_optional_time";

    // ============================================================
    // Default Values and Status

import java.util.NavigableMap;
import java.util.NoSuchElementException;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * An implementation of {@code RangeMap} based on a {@code TreeMap}, supporting all optional
 * operations.
 *
 * <p>Like all {@code RangeMap} implementations, this supports neither null keys nor null values.
 *
 * @author Louis Wasserman
 * @since 14.0
 */

Y tu *path operation* tiene un pequeño candado en la esquina superior derecha que puedes pulsar.

///

Y si lo haces, tendrás un pequeño formulario de autorización para escribir un `username` y `password` (y otros campos opcionales):

<img src="/img/tutorial/security/image02.png">

/// note | Nota

No importa lo que escribas en el formulario, aún no funcionará. Pero llegaremos allí.

///

### Technical details about the JWT "subject" `sub` { #technical-details-about-the-jwt-subject-sub }

The JWT specification says that there's a key `sub`, with the subject of the token.

It's optional to use it, but that's where you would put the user's identification, so we are using it here.

JWT might be used for other things apart from identifying a user and allowing them to perform operations directly on your API.

Вы также можете использовать её для автоматической генерации кода для клиентов, которые взаимодействуют с вашим API. Например, для фронтенд-, мобильных или IoT-приложений.

### Разверните приложение (необязательно) { #deploy-your-app-optional }

При желании вы можете развернуть своё приложение FastAPI в <a href="https://fastapicloud.com" class="external-link" target="_blank">FastAPI Cloud</a>, перейдите и присоединитесь к списку ожидания, если ещё не сделали этого. 🚀

import org.codelibs.spnego.SpnegoHttpFilter;
import org.codelibs.spnego.SpnegoHttpFilter.Constants;
import org.codelibs.spnego.SpnegoHttpServletResponse;
import org.codelibs.spnego.SpnegoPrincipal;
import org.dbflute.optional.OptionalEntity;
import org.lastaflute.web.login.credential.LoginCredential;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.servlet.filter.RequestLoggingFilter;

 * {@linkplain Comparable natural ordering} also does not permit insertion of non-comparable objects
 * (doing so results in {@code ClassCastException}).
 *
 * <p>This class and its iterator implement all of the optional methods of the {@link
 * Collection} and {@link Iterator} interfaces. The Iterator provided in method {@link #iterator()}
 * is not guaranteed to traverse the elements of the MonitorBasedPriorityBlockingQueue in

* `upgrade`: Upgrades

* `tags: List[str] = []` has a default of an empty list: `[]`.

but you might want to omit them from the result if they were not actually stored.

For example, if you have models with many optional attributes in a NoSQL database, but you don't want to send very long JSON responses full of default values.

### Use the `response_model_exclude_unset` parameter { #use-the-response-model-exclude-unset-parameter }

	// 10,000
	PartNumber int

	// Entity tag returned when the part was uploaded.
	ETag string

	Size int64

	// Checksum values. Optional.
	ChecksumCRC32     string
	ChecksumCRC32C    string
	ChecksumSHA1      string
	ChecksumSHA256    string
	ChecksumCRC64NVME string
}