* Futures.addCallback}.) Still, direct {@code addListener} calls are occasionally useful:
 *
 * <pre>{@code
 * final String name = ...;
 * inFlight.add(name);
 * ListenableFuture<Result> future = service.query(name);
 * future.addListener(new Runnable() {
 *   public void run() {
 *     processedCount.incrementAndGet();
 *     inFlight.remove(name);
 *     lastProcessed.set(name);
 *     logger.info("Done with {0}", name);

{* ../../docs_src/request_files/tutorial001_an_py39.py hl[9] *}

/// info | Informação

`File` é uma classe que herda diretamente de `Form`.

Mas lembre-se que quando você importa `Query`, `Path`, `File` e outros de `fastapi`, eles são, na verdade, funções que retornam classes especiais.

///

/// tip | Dica

   * unprivileged user may return a resource accessible only to a privileged user making a similar
   * call. To prevent this problem, create a key object that includes all values that affect the
   * result of the query. Or use {@code LoadingCache.get(K)}, which lacks the ability to refer to
   * state other than that in the key.
   *
   * <p><b>Warning:</b> as with {@link CacheLoader#load}, {@code loader} <b>must not</b> return

所有这些消息都将使用同一个 WebSocket 连

接。

## 使用 `Depends` 和其他依赖项

在 WebSocket 端点中，您可以从 `fastapi` 导入并使用以下内容：

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

它们的工作方式与其他 FastAPI 端点/ *路径操作* 相同：

//// tab | Python 3.10+

```Python hl_lines="68-69  82"
{!> ../../docs_src/websockets/tutorial002_an_py310.py!}
```

////

//// tab | Python 3.9+

		t.Fatalf("Failed to crate view, got %v", err)
	}

	var count int64
	if err := DB.Table("users_pets").Count(&count).Error; err != nil {
		t.Fatalf("should found created view")
	}

	if err := DB.Migrator().DropView("users_pets"); err != nil {
		t.Fatalf("Failed to drop view, got %v", err)
	}

	query = DB.Model(&User{}).Where("age > ?", 20)

}

// newProgressMessage - creates new Progress Message. S3 periodically sends this message, if requested.
// It contains information about the progress of a query that has started but has not yet completed.
//
// Header specification:
// Progress messages contain three headers, as follows:
// https://docs.aws.amazon.com/AmazonS3/latest/API/images/s3select-frame-diagram-progress.png

                clickLog.setUserSessionId(userSessionId);
                clickLog.setDocId(form.docId);
                clickLog.setQueryId(form.queryId);
                if (form.order != null) {
                    clickLog.setOrder(form.order);
                }
                searchLogHelper.addClickLog(clickLog);
            }
        }

	// Consequently, if err != nil, reply is always false
	_, err := l.ll.RUnlock(context.Background(), *args)
	return l.makeResp(resp, err)
}

// ForceUnlockHandler - query expired lock status.
func (l *lockRESTServer) ForceUnlockHandler(args *dsync.LockArgs) (*dsync.LockResp, *grid.RemoteErr) {
	resp := lockRPCForceUnlock.NewResponse()

	_, err := l.ll.ForceUnlock(context.Background(), *args)

						</button>
					</div>
				</la:form>
			</div>
		</div>
	</div>
	<input type="hidden" id="contextPath" value="${contextPath}" />
	<script type="text/javascript"
		src="${fe:url('/js/admin/jquery-3.7.1.min.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/admin/popper.min.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/admin/bootstrap.min.js')}"></script>

						</button>
					</div>
				</la:form>
			</div>
		</div>
	</div>
	<input type="hidden" id="contextPath" value="${contextPath}" />
	<script type="text/javascript"
		src="${fe:url('/js/admin/jquery-3.7.1.min.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/admin/popper.min.js')}"></script>
	<script type="text/javascript" src="${fe:url('/js/admin/bootstrap.min.js')}"></script>