Here’s a [sample event listener](https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PrintEventsNonConcurrent.java) that prints each event with a timestamp.

```java
class PrintingEventListener extends EventListener {
  private long callStartNanos;

  private void printEvent(String name) {
    long nowNanos = System.nanoTime();
    if (name.equals("callStart")) {

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class CollectionRetainAllTester<E> extends AbstractCollectionTester<E> {

  /** A collection of elements to retain, along with a description for use in failure messages. */
  private final class Target {
    private final Collection<E> toRetain;
    private final String description;

@TargetClass(BouncyCastlePlatform::class)
@Delete
class TargetBouncyCastlePlatform

@TargetClass(ConscryptPlatform::class)
@Delete
class TargetConscryptPlatform

@TargetClass(Jdk8WithJettyBootPlatform::class)
@Delete
class TargetJdk8WithJettyBootPlatform

@TargetClass(OpenJSSEPlatform::class)
@Delete
class TargetOpenJSSEPlatform

@TargetClass(Platform.Companion::class)
class TargetPlatform {
  @Substitute

만약 JWT 토큰을 다뤄보고, 작동 방식도 알아보고 싶다면 <a href="https://jwt.io/" class="external-link" target="_blank">https://jwt.io</a> 을 확인하십시오.

## `PyJWT` 설치

파이썬으로 JWT 토큰을 생성하고 검증하려면 `PyJWT` 를 설치해야 합니다.

[가상환경](../../virtual-environments.md){.internal-link target=_blank} 을 만들고 활성화한 다음 `pyjwt` 를 설치하십시오:

<div class="termy">

```console
$ pip install pyjwt

---> 100%
```

</div>

  /**
   * A source that reads the incoming data frames of a stream. Although this class uses
   * synchronization to safely receive incoming data frames, it is not intended for use by multiple
   * readers.
   */
  inner class FramingSource internal constructor(
    /** Maximum number of bytes to buffer before reporting a flow control error. */
    private val maxByteCount: Long,

After activating the environment, install the required packages:

//// tab | `pip`

<div class="termy">

```console
$ pip install -r requirements.txt

---> 100%
```

</div>

////

//// tab | `uv`

If you have <a href="https://github.com/astral-sh/uv" class="external-link" target="_blank">`uv`</a>:

<div class="termy">

```console
$ uv pip install -r requirements.txt

---> 100%
```

  }

  public void testNullPointerExceptions() {
    new NullPointerTester().testAllPublicStaticMethods(Interners.class);
  }

  public void testConcurrencyLevel_zero() {
    Interners.InternerBuilder builder = Interners.newBuilder();
    assertThrows(IllegalArgumentException.class, () -> builder.concurrencyLevel(0));
  }

  public void testConcurrencyLevel_negative() {

        .url("https://square.com")
        .tag(Any::class.java, objectTag)
        .tag(UUID::class.java, uuidTag)
        .tag(String::class.java, stringTag)
        .tag(Long::class.javaObjectType, longTag)
        .build()
    assertThat(request.tag()).isSameAs(objectTag)
    assertThat(request.tag(Any::class.java)).isSameAs(objectTag)
    assertThat(request.tag(UUID::class.java)).isSameAs(uuidTag)

* <a href="https://strawberry.rocks/" class="external-link" target="_blank">Strawberry</a> 🍓
    * Mit <a href="https://strawberry.rocks/docs/integrations/fastapi" class="external-link" target="_blank">Dokumentation für FastAPI</a>
* <a href="https://ariadnegraphql.org/" class="external-link" target="_blank">Ariadne</a>
    * Mit <a href="https://ariadnegraphql.org/docs/fastapi-integration" class="external-link" target="_blank">Dokumentation für FastAPI</a>

            }

            private boolean isQualifiedForInterpolation(Field field, Class<?> fieldType) {
                if (Map.class.equals(fieldType) && "locations".equals(field.getName())) {
                    return false;
                }
                if (InputLocation.class.equals(fieldType)) {
                    return false;
                }