"items:read items:write users:read profile openid"
    client_id: optional string. OAuth2 recommends sending the client_id and client_secret (if any)
        using HTTP Basic auth, as: client_id:client_secret
    client_secret: optional string. OAuth2 recommends sending the client_id and client_secret (if any)
        using HTTP Basic auth, as: client_id:client_secret
    """

    def __init__(

This module enables [Zstandard (zstd)][1] response compression in addition to Gzip, as long as
the `Accept-Encoding` header is not otherwise set. Web servers must be configured to return zstd
responses.

Note that zstd is not used for sending requests.

```java
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(CompressionInterceptor(Zstd, Gzip))
  .build();
```

```kotlin
implementation("com.squareup.okhttp3:okhttp-zstd:5.3.0")

    /**
     * Default constructor.
     */
    public CoordinatorHelper() {
        // Default constructor
    }

    /**
     * Initializes the coordinator by sending an initial heartbeat and starting the poll loop.
     */
    @PostConstruct
    public void init() {
        instanceId = ComponentUtil.getSystemHelper().getInstanceId();

                updateForm(fessConfig, form);
            });
        });
    }

    /**
     * Sends a test mail using the provided notification settings.
     *
     * @param form the mail form containing notification settings
     * @return HTML response after sending test mail
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse sendmail(final MailForm form) {

import org.opensearch.action.search.SearchResponse;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.search.sort.SortOrder;

/**
 * Job for sending log notifications.
 */
public class LogNotificationJob {

    /**
     * Default constructor.
     */
    public LogNotificationJob() {
        // Default constructor
    }

        // Execute
        String result = pingSearchEngineJob.execute();

        // Assert
        assertEquals("Status of test-cluster is changed to RED.", result);
        // Note: Notification sending is tested but we don't verify the mock since it uses complex callback mechanism
    }

    // Test state change with empty notification addresses
    @Test

 5. It sends the HTTP request and reads the response.

        include a WWW-Authenticate header.

        Ref: https://datatracker.ietf.org/doc/html/rfc9110#name-401-unauthorized

        For this, this method sends a custom challenge `APIKey`.
        """
        return HTTPException(
            status_code=HTTP_401_UNAUTHORIZED,
            detail="Not authenticated",
            headers={"WWW-Authenticate": "APIKey"},
        )

   */
  public void assertPriorCallReturns(boolean expected, @Nullable String methodName)
      throws Exception {
    assertEquals(expected, getResponse(methodName).getResult());
  }

  /**
   * Sends the given method call to this thread.
   *
   * @throws TimeoutException if this thread does not accept the request within a reasonable amount
   *     of time
   */

   */
  public void assertPriorCallReturns(boolean expected, @Nullable String methodName)
      throws Exception {
    assertEquals(expected, getResponse(methodName).getResult());
  }

  /**
   * Sends the given method call to this thread.
   *
   * @throws TimeoutException if this thread does not accept the request within a reasonable amount
   *     of time
   */