### Das abbr gibt eine vollständige Phrase und eine Erklärung { #the-abbr-gives-a-full-phrase-and-an-explanation }

* <abbr title="Mozilla Developer Network – Mozilla-Entwicklernetzwerk: Dokumentation für Entwickler, geschrieben von den Firefox-Leuten">MDN</abbr>
* <abbr title="Input/Output – Eingabe/Ausgabe: Lesen oder Schreiben auf der Festplatte, Netzwerkkommunikation.">I/O</abbr>.

        assertEquals(1, ((List<?>) pom.getValue("developers")).size());
        assertEquals("dev", pom.getValue("developers[1]/id"));
        assertEquals("project-developer", pom.getValue("developers[1]/name"));
        assertEquals("developer@", pom.getValue("developers[1]/email"));
        assertEquals("https://developer", pom.getValue("developers[1]/url"));
        assertEquals("developer", pom.getValue("developers[1]/organization"));

      <distribution>repo</distribution>
    </license>
  </licenses>
  <developers>
    <!-- Sonatype requires that we list someone here. Guava has many contributors: https://github.com/google/guava/graphs/contributors -->
    <developer>
      <id>cpovirk</id>
      <name>Chris Povirk</name>
      <email>******@****.***</email>
    </developer>
  </developers>
  <modules>
    <module>guava</module>
    <module>guava-bom</module>

      <distribution>repo</distribution>
    </license>
  </licenses>
  <developers>
    <!-- Sonatype requires that we list someone here. Guava has many contributors: https://github.com/google/guava/graphs/contributors -->
    <developer>
      <id>cpovirk</id>
      <name>Chris Povirk</name>
      <email>******@****.***</email>
    </developer>
  </developers>
  <modules>
    <module>guava</module>
    <module>guava-bom</module>

h4. Working with POMs during development

# WebSockets { #websockets }

Sie können <a href="https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API" class="external-link" target="_blank">WebSockets</a> mit **FastAPI** verwenden.

## `websockets` installieren { #install-websockets }

    * 次に、対応する*path operation*によって生成された `response` を返します。
* その後、`response` を返す前にさらに `response` を変更することもできます。

{* ../../docs_src/middleware/tutorial001.py hl[8:9,11,14] *}

/// tip | 豆知識

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">'X-'プレフィックスを使用</a>してカスタムの独自ヘッダーを追加できます。

///

/// note | Technical Details

You could also use `from starlette.testclient import TestClient`.

**FastAPI** provides the same `starlette.testclient` as `fastapi.testclient` just as a convenience for you, the developer. But it comes directly from Starlette.

///

/// tip

1.  Using tools and libraries installed directly on your system.

    Refer to the
    [CPU-only developer Dockerfile](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/tools/dockerfiles/dockerfiles/devel-cpu.Dockerfile)
    and
    [GPU developer Dockerfile](https://github.com/tensorflow/tensorflow/blob/master/tensorflow/tools/dockerfiles/dockerfiles/devel-gpu.Dockerfile)

```

MockWebServer is used for firstly for internal testing, and for basic testing of apps using OkHttp client.
It is not a full featured HTTP testing library that is developed standalone. It is not being actively developed
for new features. As such you might find your needs outgrow MockWebServer and you may which to use a
more full featured testing library such as [MockServer](https://www.mock-server.com/).