* the License.
 */

package com.google.common.base;

import com.google.common.annotations.GwtCompatible;
import org.jspecify.annotations.Nullable;

/**
 * Exception thrown upon the failure of a <a
 * href="https://github.com/google/guava/wiki/ConditionalFailuresExplained">verification check</a>,
 * including those performed by the convenience methods of the {@link Verify} class.
 *
 * @since 17.0
 */
@GwtCompatible

 * interacting with this class directly.
 *
 * <p><b>Warning:</b> this interface can only be used to measure elapsed time, not wall time.
 *
 * @author Kevin Bourrillion
 * @since 10.0 (<a href="https://github.com/google/guava/wiki/Compatibility">mostly
 *     source-compatible</a> since 9.0)
 */
@GwtCompatible
public abstract class Ticker {
  /** Constructor for use by subclasses. */
  protected Ticker() {}

Под капотом, в ASGI-технической спецификации, это часть <a href="https://asgi.readthedocs.io/en/latest/specs/lifespan.html" class="external-link" target="_blank">Протокола Lifespan</a>, и он определяет события `startup` и `shutdown`.

/// info | Информация

# Modelos de Formulários { #form-models }

Você pode utilizar **Modelos Pydantic** para declarar **campos de formulários** no FastAPI.

/// info | Informação

Para utilizar formulários, instale primeiramente o <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Certifique-se de criar um [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ativá-lo, e então instalar. Por exemplo:

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

/**
 * An iterator that supports a one-element lookahead while iterating.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/CollectionHelpersExplained#peekingiterator">{@code
 * PeekingIterator}</a>.
 *
 * @author Mick Killianey
 * @since 2.0
 */
@DoNotMock("Use Iterators.peekingIterator")

### 당신만의 비동기 코드 작성하기

Starlette(그리고 FastAPI)는 <a href="https://anyio.readthedocs.io/en/stable/" class="external-link" target="_blank">AnyIO</a>를 기반으로 하고있고, 따라서 파이썬 표준 라이브러리인 <a href="https://docs.python.org/3/library/asyncio-task.html" class="external-link" target="_blank">asyncio</a> 및 <a href="https://trio.readthedocs.io/en/stable/" class="external-link" target="_blank">Trio</a>와 호환됩니다.

                                "content": {
                                    "application/json": {
                                        "schema": {
                                            "$ref": "#/components/schemas/MyModel"
                                        }
                                    }
                                },
                            }
                        },

                                                       items="${backupItems}">
                                                <tr
                                                        data-href="${contextPath}/admin/backup/download/${f:u(data.id)}/">
                                                    <td>${f:h(data.name)}</td>
                                                </tr>

Y como el `Response` se puede usar frecuentemente para establecer headers y cookies, **FastAPI** también lo proporciona en `fastapi.Response`.

///

 * <p>
 * The news extension allows you to provide additional information about news articles on your site.
 * This can help Google News index your articles and display them in Google News search results.
 * </p>
 *
 * @see <a href="https://developers.google.com/search/docs/crawling-indexing/sitemaps/news-sitemap">Google News Sitemaps</a>
 */
public class SitemapNews implements Serializable {

    private static final long serialVersionUID = 1L;