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

Sie können Binär-, Text- und JSON-Daten empfangen und senden.

## Es ausprobieren

Wenn Ihre Datei `main.py` heißt, führen Sie Ihre Anwendung so aus:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

@GwtCompatible
final class LongAddables {
  private static final Supplier<LongAddable> SUPPLIER;

  static {
    Supplier<LongAddable> supplier;
    try {
      // trigger static initialization of the LongAdder class, which may fail
      LongAdder unused = new LongAdder();
      supplier =
          new Supplier<LongAddable>() {
            @Override
            public LongAddable get() {
              return new LongAdder();
            }

    writing it has test supersource but no prod supersource.

    GWT happens to use the prod .gwt.xml, so it looks for no supersource for
    tests, either. This causes it to fail to find AtomicLongMapTest.

    Our workaround is to tell GWT that util.concurrent and all other packages
    have prod supersource, even if they have none. GWT is happy to ignore us
    when we specify a nonexistent path.

  push:
    branches:
    - master
    - "*.x"
  pull_request:
    branches:
    - master
    - "*.x"
  workflow_dispatch:

jobs:
  build:
    runs-on: macos-14
    env:
      PARENT_BRANCH: main
    timeout-minutes: 15
    steps:
    - uses: actions/checkout@v4
    - name: Set up JDK 21
      uses: actions/setup-java@v4
      with:
        java-version: '21'
        distribution: 'temurin'

esas
ese
eses
esta
estar
estaba
está
están
este
estes
estiven
estou
eu
é
facer
foi
foron
fun
había
hai
iso
isto
la
las
lle
lles
lo
los
mais
me
meu
meus
min
miña
miñas
moi
na
nas
neste
nin
no
non
nos
nosa
nosas
noso
nosos
nós
nun
nunha
nuns
nunhas
o
os
ou
ó

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.services;

/**
 * Exception thrown when toolchain factory operations fail.
 *
 * <p>This exception wraps errors that occur during toolchain creation or initialization.</p>
 */
public class ToolchainFactoryException extends MavenException {

    public ToolchainFactoryException(String message) {

        .addHeader("Content-Type: text/plain")
        .build(),
    )

    // Make a request from client to server. It should succeed certificate checks (unfortunately the
    // rogue CA is trusted) but it should fail certificate pinning.
    val request =
      Request
        .Builder()
        .url(server.url("/"))
        .build()
    val call = client.newCall(request)
    assertFailsWith<SSLPeerUnverifiedException> {

    assertThat(iia.subArray(1, 5).contains(1)).isTrue();
  }

  public void testForEach() {
    ImmutableDoubleArray.of().forEach(i -> fail());
    ImmutableDoubleArray.of(0, 1, 3).subArray(1, 1).forEach(i -> fail());

    AtomicInteger count = new AtomicInteger(0);
    ImmutableDoubleArray.of(0, 1, 2, 3)
        .forEach(i -> assertThat(i).isEqualTo((double) count.getAndIncrement()));

Переконайтесь, що Ви створили [віртуальне середовище](../virtual-environments.md){.internal-link target=_blank}, активували його, а потім встановили пакет, наприклад:

```console
$ pip install email-validator
```

or with:

```console
$ pip install "pydantic[email]"
```

///

/// info | Информация

Чтобы использовать `EmailStr`, прежде необходимо установить <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.
Используйте `pip install email-validator`
или `pip install pydantic[email]`.

///

Далее мы используем нашу модель в аннотациях типа как для аргумента функции, так и для выходного значения: