git push && git push --tags

   sed -i "" \
      "s/version = \".*\"/version = \"$NEXT_VERSION\"/g" \
      build.gradle.kts
    git commit -am "Prepare next development version."
    git push
    ```

4. Wait for [GitHub Actions][github_actions] to build and promote the release.

				return err
			}
		}

		header, err := tarReader.Next()
		switch {
		// if no more files are found return
		case err == io.EOF:
			wg.Wait()
			return asyncErr

		// return any other error
		case err != nil:
			wg.Wait()
			extra := ""
			if n > 0 {
				extra = fmt.Sprintf(" after %d successful object(s)", n)
			}
			return fmt.Errorf("tar file error: %w%s", err, extra)

**FastAPI** напрямую предоставляет тот же самый `WebSocket` просто для удобства. На самом деле это `WebSocket` из Starlette.

///

## Ожидание и отправка сообщений { #await-for-messages-and-send-messages }

Через эндпоинт веб-сокета вы можете получать и отправлять сообщения.

{* ../../docs_src/websockets/tutorial001_py39.py hl[48:52] *}

        }
        return values;
    }

    /**
     * Sets the wait time in milliseconds when the crawler is not running.
     *
     * @param crawlerWaitMillis the wait time in milliseconds
     */
    public void setCrawlerWaitMillis(final long crawlerWaitMillis) {
        this.crawlerWaitMillis = crawlerWaitMillis;
    }

    val dispatcher: Dispatcher =
      object : Dispatcher() {
        override fun dispatch(request: RecordedRequest): MockResponse {
          if (request.url.encodedPath == firstRequest) {
            latch.await()
          }
          return MockResponse()
        }
      }
    mockWebServer.dispatcher = dispatcher
    val startsFirst = buildRequestThread(firstRequest, firstResponseCode)
    startsFirst.start()

with open("file.txt") as file:
    file.read()
```

Em versões mais recentes do Python, há também um **gerenciador de contexto assíncrono**. Você o usaria com `async with`:

```Python
async with lifespan(app):
    await do_stuff()
```

   * than the given time. The manager will become healthy after all the component services have
   * reached the {@linkplain State#RUNNING running} state.
   *
   * @param timeout the maximum time to wait
   * @throws TimeoutException if not all of the services have finished starting within the deadline
   * @throws IllegalStateException if the service manager reaches a state from which it cannot

   * than the given time. The manager will become healthy after all the component services have
   * reached the {@linkplain State#RUNNING running} state.
   *
   * @param timeout the maximum time to wait
   * @throws TimeoutException if not all of the services have finished starting within the deadline
   * @throws IllegalStateException if the service manager reaches a state from which it cannot

`from starlette.websockets import WebSocket`을 사용할 수도 있습니다.

**FastAPI**는 개발자를 위한 편의를 위해 동일한 `WebSocket`을 직접 제공합니다. 하지만 이는 Starlette에서 가져옵니다.

///

## 메시지를 대기하고 전송하기

WebSocket 경로에서 메시지를 대기(`await`)하고 전송할 수 있습니다.

{* ../../docs_src/websockets/tutorial001.py hl[48:52] *}

여러분은 이진 데이터, 텍스트, JSON 데이터를 받을 수 있고 전송할 수 있습니다.

## 시도해보기

파일 이름이 `main.py`라고 가정하고 응용 프로그램을 실행합니다:

<div class="termy">

```Python
with open("file.txt") as file:
    file.read()
```

В последних версиях Python есть также асинхронный менеджер контекста. Его используют с `async with`:

```Python
async with lifespan(app):
    await do_stuff()
```

Когда вы создаёте менеджер контекста или асинхронный менеджер контекста, как выше, он перед входом в блок `with` выполнит код до `yield`, а после выхода из блока `with` выполнит код после `yield`.